Txoj kev loj hlob ntawm cellulose ether ua lag luam

Kev tsim thiab kev siv ntawm hydroxymethyl cellulose thiab methyl cellulose thiab lawv cov derivatives tau qhia, thiab kev xav tau ntawm kev lag luam yav tom ntej tau kwv yees.Cov kev sib tw thiab cov teeb meem hauv kev lag luam cellulose ether tau txheeb xyuas.Qee cov lus qhia txog kev txhim kho cellulose ether kev lag luam hauv peb lub teb chaws tau muab.

Lo lus tseem ceeb:cellulose ether;Kev soj ntsuam kev lag luam xav tau;Kev tshawb nrhiav kev lag luam

1. Kev faib tawm thiab kev siv cellulose ether

1.1 Kev faib tawm

Cellulose ether yog ib qho polymer compound uas cov hydrogen atoms ntawm lub anhydrous qabzib units ntawm cellulose yog hloov los ntawm alkyl los yog hloov alkyl pawg.Ntawm cov saw ntawm cellulose polymerization.Txhua chav tsev anhydrous qabzib muaj peb pawg hydroxyl uas tuaj yeem koom nrog cov tshuaj tiv thaiv yog tias hloov tag nrho.Tus nqi ntawm DS yog 3, thiab qhov kev hloov pauv ntawm cov khoom lag luam muaj nyob ntawm 0.4 txog 2.8.Thiab thaum nws hloov los ntawm alkenyl oxide, nws tuaj yeem tsim ib pawg hydroxyl tshiab uas tuaj yeem hloov tau ntxiv los ntawm pawg hydroxyl alkyl, yog li nws tsim cov saw hlau.Qhov loj ntawm txhua qhov anhydrous qabzib olefin oxide txhais tau tias yog tus lej hloov molar (MS) ntawm cov khoom sib xyaw.Cov khoom tseem ceeb ntawm kev lag luam cellulose ether feem ntau yog nyob ntawm cov molar pawg, cov qauv tshuaj, hloov pauv, DS thiab MS ntawm cellulose.Cov khoom no feem ntau suav nrog solubility, viscosity hauv kev daws, kev ua haujlwm saum npoo, cov khoom siv thermoplastic thiab ruaj khov tiv thaiv biodegradation, thermal txo thiab oxidation.Lub viscosity nyob rau hauv cov tshuaj sib txawv raws li tus txheeb ze molecular loj.

Cellulose ether muaj ob pawg: ib qho yog hom ionic, xws li carboxymethyl cellulose (CMC) thiab polyanionic cellulose (PAC);Lwm hom yog non-ionic, xws li methyl cellulose (MC), ethyl cellulose (EC),Hydroxyethyl Cellulose (HEC), hydroxypropyl methyl cellulose (HPMC) thiab lwm yam.

1.2 Kev siv

1.2.1 CMC

CMC yog ib qho anionic polyelectrolyte soluble hauv dej kub thiab txias.Cov khoom siv dav tshaj plaws muaj DS ntau ntawm 0.65 ~ 0.85 thiab viscosity ntau ntawm 10 ~ 4 500 mPa.s.Nws yog marketed nyob rau hauv peb qib: siab purity, intermediate thiab industrial.Cov khoom purity siab yog ntau tshaj 99.5% ntshiab, thaum nruab nrab purity yog ntau tshaj 96%.Cov purity siab CMC feem ntau hu ua cellulose gum, tuaj yeem siv rau hauv cov khoom noj ua kom ruaj khov, tus neeg sawv cev thickening thiab moisturizing tus neeg saib xyuas thiab siv rau hauv cov tshuaj thiab cov khoom tu tus kheej ua cov thickening tus neeg saib xyuas, emulsifier thiab viscosity tswj tus neeg saib xyuas, roj ntau lawm kuj yog siv nyob rau hauv siab purity. CMC.Cov khoom nruab nrab feem ntau yog siv rau hauv textile sizing thiab papermaking agents, lwm yam kev siv xws li nplaum, ceramics, latex xim thiab ntub puag txheej.Muaj qib CMC muaj ntau dua 25% sodium chloride thiab sodium oxyacetic acid, uas yog yav tas los siv rau hauv cov tshuaj ntxuav tes thiab kev lag luam nrog cov kev cai purity tsawg.Vim nws txoj kev ua tau zoo heev thiab kev siv ntau yam, tab sis kuj tseem nyob rau hauv kev txhim kho txuas ntxiv ntawm daim ntawv thov tshiab, kev ua lag luam zeem muag yog qhov dav heev, muaj peev xwm loj.

1.2.2 Nonionic cellulose ether

Nws hais txog ib chav kawm ntawm cellulose ethers thiab lawv cov derivatives uas tsis muaj pawg dissociable nyob rau hauv lawv cov structural units.Lawv muaj kev ua tau zoo dua li ionic ether cov khoom hauv thickening, emulsification, film forming, colloid tiv thaiv, noo noo retention, adhesion, anti-rhiab heev thiab lwm yam.Dav siv nyob rau hauv oilfield exploitation, latex txheej, cov tshuaj tiv thaiv polymerization, cov ntaub ntawv hauv tsev, tshuaj txhua hnub, zaub mov, tshuaj, ntawv ua, textile printing thiab dyeing thiab lwm yam kev lag luam sectors.

Methyl cellulose thiab nws cov derivatives tseem ceeb.Hydroxypropyl methyl cellulose thiab hydroxyethyl methyl cellulose yog nonionic.Lawv yog ob qho tib si soluble hauv dej txias tab sis tsis nyob hauv dej kub.Thaum lawv cov tshuaj aqueous yog rhuab mus rau 40 ~ 70 ℃, cov gel tshwm sim tshwm.Qhov kub ntawm qhov gelation tshwm sim nyob ntawm seb hom gel, qhov concentration ntawm cov tshuaj, thiab qib uas lwm yam ntxiv ntxiv.Lub gel phenomenon yog reversible.

(1) HPMC thiab MC.Kev siv MCS thiab HPMCS txawv nyob ntawm qib: qib zoo yog siv rau hauv cov zaub mov thiab tshuaj;Standard qib muaj nyob rau hauv cov xim thiab xim Remover, daim ntawv cog lus cement.Adhesives thiab roj extraction.Hauv cov non-ionic cellulose ether, MC thiab HPMC yog cov lag luam loj tshaj plaws.

Kev tsim kho kev lag luam yog cov neeg siv khoom loj tshaj plaws ntawm HPMC / MC, feem ntau yog siv los ua zes, txheej txheej, pobzeb muab tshuaj txhuam thiab ntxiv rau cov cement mortar.Tshwj xeeb, hauv cov cement mortar tov nrog ib qho me me ntawm HPMC tuaj yeem ua qhov nplaum, dej tuav, qeeb coagulation thiab huab cua los ntshav.Obviously txhim kho cov cement mortar, mortar, nplaum cov khoom, khov tsis kam thiab kub tsis kam thiab tensile thiab shear zog.Yog li txhim kho kev tsim kho ntawm cov khoom siv hauv tsev.Txhim kho kev tsim kho kom zoo thiab kev ua haujlwm ntawm kev tsim kho tshuab.Tam sim no, HPMC yog tib cov khoom siv cellulose ether siv los tsim cov khoom sib khi.

HPMC tuaj yeem siv los ua cov khoom siv tshuaj, xws li tus neeg sawv cev thickening, dispersant, emulsifier thiab film forming agent.Nws tuaj yeem siv los ua zaj duab xis txheej thiab nplaum ntawm cov ntsiav tshuaj, uas tuaj yeem txhim kho cov tshuaj solubility ntawm cov tshuaj.Thiab tuaj yeem txhim kho cov dej tsis kam ntawm cov ntsiav tshuaj.Nws kuj tseem siv tau los ua tus neeg saib xyuas kev ncua, qhov muag npaj, qeeb thiab tswj kev tso tawm tus neeg saib xyuas lub cev thiab cov ntsiav tshuaj ntab.

Hauv kev lag luam tshuaj lom neeg, HPMC yog tus pabcuam rau kev npaj ntawm PVC los ntawm kev ncua kev kawm.Siv los tiv thaiv colloid, txhim khu kev ncua quab yuam, txhim kho cov duab ntawm PVC particle loj tis;Hauv kev tsim cov coatings, MC yog siv los ua thickener, dispersant thiab stabilizer, xws li zaj duab xis tsim tus neeg sawv cev, thickener, emulsifier thiab stabilizer nyob rau hauv latex coatings thiab dej-soluble resin coatings, thiaj li hais tias cov zaj duab xis muaj zoo hnav tsis kam, uniform txheej thiab Adhesion, thiab txhim kho cov nro nro thiab ua kom ruaj khov, nrog rau cov khoom siv xim hlau.

(2) EC, HEC thiab CMHEM.EC yog xim dawb, tsis muaj ntxhiab, tsis muaj xim, tsis muaj kuab lom uas feem ntau dissolves hauv cov kuab tshuaj organic nkaus xwb.Cov khoom lag luam muaj nyob hauv ob qhov DS, 2.2 txog 2.3 thiab 2.4 txog 2.6.Cov ntsiab lus ntawm ethoxy pawg cuam tshuam rau cov khoom siv thermodynamic thiab thermal stability ntawm EC.EC dissolves nyob rau hauv ib tug loj tus naj npawb ntawm cov organic solvents nyob rau hauv ib tug dav kub ntau yam thiab muaj ib tug tsawg ignition point.EC tuaj yeem ua rau resin, nplaum, number case, kua roj vanish, zaj duab xis thiab cov khoom yas.Ethyl hydroxyethyl cellulose (EHEC) muaj hydroxymethyl hloov tus lej ze rau 0.3, thiab nws cov khoom zoo ib yam li EC.Tab sis nws kuj dissolves nyob rau hauv pheej yig hydrocarbon cov kuab tshuaj (odorless kerosene) thiab yog siv feem ntau nyob rau hauv nto coatings thiab inks.

Hydroxyethyl cellulose (HEC) muaj nyob rau hauv ob qho tib si dej - lossis roj-soluble cov khoom uas muaj ntau yam viscosity.Nws tsis yog-ionic dej soluble soluble nyob rau hauv ob qho tib si dej kub thiab txias, muaj ntau yam kev lag luam daim ntaub ntawv, feem ntau yog siv nyob rau hauv latex xim, roj extraction thiab polymerization emulsion, tab sis nws kuj yuav siv tau raws li adhesives, adhesives, tshuaj pleev ib ce thiab tshuaj additives.

Carboxymethyl hydroxyethyl cellulose (CMHEM) yog hydroxyethyl cellulose derivative.Tus txheeb ze rau CMC, nws tsis yooj yim rau kev tso tawm los ntawm cov ntsev hnyav hlau, feem ntau yog siv rau hauv cov roj rho tawm thiab cov tshuaj detergents.

2. Ntiaj teb cellulose ether ua lag luam

Tam sim no, tag nrho cov peev txheej ntawm cellulose ether hauv ntiaj teb tau tshaj 900,000 t / a.Kev lag luam thoob ntiaj teb cellulose ether tau tshaj $ 3.1 nphom hauv xyoo 2006. Kev lag luam peev txheej ntawm MC, CMC thiab HEC thiab lawv cov derivatives yog 32%, 32% thiab 16%, feem.Tus nqi lag luam ntawm MC yog tib yam li ntawm CMC.

Tom qab xyoo ntawm txoj kev loj hlob, kev ua lag luam ntawm cellulose ether nyob rau hauv cov teb chaws tsim tau heev paub tab, thiab kev ua lag luam ntawm cov teb chaws tsim yog tseem nyob rau hauv txoj kev loj hlob theem, yog li nws yuav yog lub ntsiab tsav lub zog rau kev loj hlob ntawm lub ntiaj teb no cellulose ether noj nyob rau hauv lub neej yav tom ntej. .Lub peev xwm CMC uas twb muaj lawm hauv Tebchaws Meskas yog 24,500 t / a, thiab tag nrho cov peev txheej ntawm lwm cov cellulose ether yog 74,200 t / a, nrog rau tag nrho cov peev txheej ntawm 98,700 t / a.Xyoo 2006, kev tsim cov cellulose ether hauv Tebchaws Meskas yog kwv yees li 90,600 t, cov khoom ntawm CMC yog 18,100 t, thiab cov khoom ntawm lwm cov cellulose ether yog 72,500 t.Ntshuam yog 48,100 tons, exports 37,500 tons, thiab pom meej noj mus txog 101,200 tons.Cellulose noj nyob rau hauv Western Europe yog 197,000 tons nyob rau hauv 2006 thiab yuav tsum muaj ib tug txhua xyoo kev loj hlob tus nqi ntawm 1% nyob rau hauv tsib lub xyoos tom ntej no.Tebchaws Europe yog cov neeg siv khoom loj tshaj plaws ntawm cellulose ether hauv ntiaj teb, suav txog 39% ntawm tag nrho lub ntiaj teb, tom qab ntawd Asia thiab North America.CMC yog qhov tseem ceeb ntawm kev noj, suav txog 56% ntawm tag nrho kev noj, ua raws li methyl cellulose ether thiab hydroxyethyl cellulose ether, suav txog 27% thiab 12% ntawm tag nrho, raws li.Qhov nruab nrab txhua xyoo kev loj hlob ntawm cellulose ether yuav tsum nyob twj ywm ntawm 4.2% los ntawm 2006 txog 2011. Nyob rau hauv Asia, Nyiv yuav tsum nyob twj ywm nyob rau hauv qhov chaw tsis zoo, thaum Tuam Tshoj yuav tsum muaj kev loj hlob ntawm 9%.North America thiab Europe, uas muaj kev noj ntau tshaj, yuav loj hlob los ntawm 2.6% thiab 2.1%, feem.

3. Cov xwm txheej tam sim no thiab kev loj hlob ntawm CMC kev lag luam

Lub lag luam CMC tau muab faib ua peb theem: thawj, nruab nrab thiab ua kom zoo.CMC cov khoom lag luam tseem ceeb yog tswj hwm los ntawm ntau lub tuam txhab Suav, ua raws li CP Kelco, Amtex thiab Akzo Nobel nrog 15 feem pua, 14 feem pua ​​​​thiab 9 feem pua ​​​​ntawm kev ua lag luam feem.CP Kelco thiab Hercules/Aqualon account rau 28% thiab 17% ntawm cov qib refined CMC lag luam, feem.Hauv xyoo 2006, 69% ntawm CMC kev teeb tsa tau ua haujlwm thoob ntiaj teb.

3.1 USA

Tam sim no muaj peev xwm tsim tau ntawm CMC hauv Tebchaws Meskas yog 24,500 t / a.Xyoo 2006, lub peev xwm ntawm CMC hauv Tebchaws Meskas yog 18,100 t.Cov neeg tsim khoom tseem ceeb yog Hercules / Aqualon Company thiab Penn Carbose Company, nrog lub peev xwm ntau lawm ntawm 20,000 t / a thiab 4,500 t / a, feem.Nyob rau hauv 2006, US imports yog 26,800 tons, exports 4,200 tons, thiab pom meej noj yog 40,700 tons.Nws xav tias yuav loj hlob ntawm qhov nruab nrab txhua xyoo ntawm 1.8 feem pua ​​​​hauv tsib xyoos tom ntej thiab kev noj yuav tsum ncav cuag 45,000 tons hauv 2011.

High purity CMC (99.5%) feem ntau yog siv rau hauv cov khoom noj, tshuaj thiab cov khoom tu tus kheej, thiab cov khoom sib xyaw ua ke ntawm siab thiab nruab nrab purity (ntau dua 96%) yog siv hauv kev lag luam ntawv.Cov khoom lag luam tseem ceeb (65% ~ 85%) feem ntau yog siv hauv kev lag luam tshuaj ntxuav tes, thiab cov khoom lag luam tseem ceeb yog cov roj av, textile thiab lwm yam.

3.2 Teb chaws Europe

Nyob rau hauv 2006, Western European CMC muaj peev xwm ntawm 188,000 t / a, ntau lawm ntawm 154,000 t, kev khiav hauj lwm tus nqi ntawm 82%, export ntim ntawm 58,000 t thiab ntshuam ntim ntawm 4,000 t.Hauv Tebchaws Europe sab hnub poob, qhov kev sib tw hnyav heev, ntau lub tuam txhab tau kaw cov chaw tsim khoom uas muaj peev xwm dhau los, tshwj xeeb tshaj yog cov tsim cov khoom tseem ceeb, thiab nce kev khiav hauj lwm ntawm lawv cov units.Tom qab modernization, cov khoom tseem ceeb yog refined CMC thiab siab nqi-ntxiv thawj CMC cov khoom.Western Europe yog lub ntiaj teb loj tshaj plaws cellulose ether kev lag luam thiab cov xa tawm loj tshaj plaws ntawm CMC thiab non-ionic cellulose ether.Nyob rau hauv xyoo tas los no, Western European lag luam tau nkag mus rau toj siab, thiab kev loj hlob ntawm cellulose ether noj yog txwv.

Nyob rau hauv 2006, kev noj ntawm CMC nyob rau hauv Western Europe yog 102,000 tons, nrog ib tug nqi noj ntawm txog $ 275 lab.Nws cia siab tias yuav tuav qhov nruab nrab txhua xyoo kev loj hlob ntawm 1% hauv tsib xyoos tom ntej.

3.3 Nyiv

Xyoo 2005, Shikoku Chemical Company tau tso tseg kev tsim khoom ntawm Tokushima cog thiab tam sim no lub tuam txhab xa CMC cov khoom lag luam los ntawm lub tebchaws.Hauv 10 xyoo dhau los, tag nrho lub peev xwm ntawm CMC hauv Nyij Pooj tau pib tsis hloov pauv, thiab kev khiav hauj lwm ntawm cov qib sib txawv ntawm cov khoom thiab cov kab ntau lawm txawv.Lub peev xwm ntawm cov khoom lag luam qib refined tau nce, suav txog 90% ntawm tag nrho cov peev txheej ntawm CMC.

Raws li tuaj yeem pom los ntawm cov khoom siv thiab kev xav tau ntawm CMC hauv Nyij Pooj xyoo tas los no, qhov kev faib ua feem ntawm cov khoom ua kom zoo dua qub tau nce xyoo los ntawm lub xyoo, suav txog 89% ntawm tag nrho cov khoom tsim tawm hauv xyoo 2006, uas feem ntau yog vim kev lag luam xav tau siab. purity khoom.Tam sim no, cov tuam txhab tseem ceeb txhua tus muab cov khoom lag luam ntawm ntau yam kev qhia tshwj xeeb, kev xa tawm ntim ntawm Japanese CMC tau nce zuj zus, kwv yees kwv yees li ib nrab ntawm tag nrho cov khoom tsim tawm, feem ntau xa tawm mus rau Tebchaws Meskas, Suav teb, Taiwan, Thaib thiab Indonesia. .Nrog rau kev thov muaj zog los ntawm lub ntiaj teb cov roj rov qab sector, qhov kev xa tawm no yuav txuas ntxiv mus rau tsib xyoos tom ntej.

4,non-ionic cellulose ether kev lag luam raws li txoj cai thiab kev loj hlob sib

Kev tsim khoom ntawm MC thiab HEC yog qhov tseem ceeb, nrog rau peb lub tuam txhab tuav 90% ntawm kev ua lag luam.HEC ntau lawm yog cov concentrated tshaj plaws, nrog Hercules thiab Dow accounting rau ntau tshaj 65% ntawm lub khw, thiab feem ntau cellulose ether manufacturers concentrated nyob rau hauv ib los yog ob series.Hercules / Aqualon tsim peb kab ntawm cov khoom raws li HPC thiab EC.Nyob rau hauv 2006, lub ntiaj teb no kev khiav hauj lwm tus nqi ntawm MC thiab HEC installation yog 73% thiab 89%, feem.

4.1 USA

Dow Wolff Celluosies thiab Hercules/Aqualon, cov neeg tsim khoom loj uas tsis yog-ionic cellulose ether hauv Teb Chaws Asmeskas, muaj tag nrho cov peev txheej tsim tawm ntawm 78,200 t / a.Kev tsim cov nonionic cellulose ether hauv Tebchaws Meskas hauv xyoo 2006 yog txog 72,500 t.

Nonionic cellulose ether noj hauv Tebchaws Meskas hauv xyoo 2006 yog li 60,500 t.Ntawm lawv, kev noj ntawm MC thiab nws cov khoom siv yog 30,500 tons, thiab kev noj HEC yog 24,900 tons.

4.1.1 MC/HPMC

Hauv Tebchaws Meskas, tsuas yog Dow tsim MC / HPMC nrog lub peev xwm ntau lawm ntawm 28,600 t / a.Muaj ob chav nyob, 15,000 t / a thiab 13,600 t / ib feem.Nrog kev tsim khoom ntawm ib ncig ntawm 20,000 t hauv 2006, Dow Chemical tuav qhov loj tshaj plaws ntawm kev tsim kho kev lag luam, tau koom ua ke Dow Wolff Cellulosics hauv 2007. Nws tau nthuav dav nws cov lag luam hauv kev tsim kho kev lag luam.

Tam sim no, kev ua lag luam ntawm MC/HPMC hauv Tebchaws Meskas tau dhau los ua kom txaus.Nyob rau hauv xyoo tas los no, kev lag luam kev loj hlob kuj qeeb.Nyob rau hauv 2003, kev noj yog 25,100 t, thiab nyob rau hauv 2006, kev noj yog 30,500 t, ntawm uas 60% cov khoom siv nyob rau hauv kev tsim kho kev lag luam, txog 16,500 t.

Kev lag luam xws li kev tsim kho thiab khoom noj khoom haus thiab tshuaj yog cov tsav tsheb tseem ceeb ntawm MC / HPMC kev lag luam kev lag luam hauv Teb Chaws Asmeskas, thaum qhov kev thov los ntawm kev lag luam polymer yuav tsis hloov pauv.

4.1.2 HEC thiab CMHEC

Xyoo 2006, kev noj HEC thiab nws cov derivative carboxymethyl hydroxyethyl cellulose (CMHEC) hauv Tebchaws Meskas yog 24,900 t.Kev noj haus yuav tsum loj hlob ntawm qhov nruab nrab txhua xyoo ntawm 1.8% los ntawm 2011.

4.2 Teb chaws Europe

Western Europe yog thawj zaug hauv kev tsim cov peev txheej ntawm cellulose ether hauv ntiaj teb, thiab tseem yog thaj av uas muaj MC / HPMC ntau lawm thiab noj.Nyob rau hauv 2006, muag ntawm Western European MCS thiab lawv cov derivatives (HEMCs thiab HMCCS) thiab HECs thiab EHECs yog $419 lab thiab $166 lab, feem.Nyob rau hauv 2004, lub peev xwm ntau lawm ntawm non-ionic cellulose ether nyob rau hauv Western Europe yog 160,000 t / a.Nyob rau hauv 2007, cov zis mus txog 184,000 t / a, thiab cov zis mus txog 159,000 t.Qhov ntim ntshuam yog 20,000 t thiab cov khoom ntim yog 85,000 t.Nws lub peev xwm ntau lawm MC / HPMC nce txog 100,000 t / a.

Tsis yog-ionic cellulose noj nyob rau hauv Western Europe yog 95,000 tons nyob rau hauv 2006. Tag nrho cov muag ntim ncav cuag 600 lab US dollars, thiab kev noj ntawm MC thiab nws derivatives, HEC, EHEC thiab HPC yog 67,000 t, 26,000 t thiab 2,000 t, feem.Cov nyiaj tau los sib xws yog 419 lab US las, 166 lab US las thiab 15 lab US las, thiab qhov nruab nrab txhua xyoo kev loj hlob yuav raug tswj hwm li ntawm 2% hauv tsib xyoos tom ntej.Nyob rau hauv 2011, kev noj ntawm non-ionic cellulose ether nyob rau hauv Western Europe yuav ncav cuag 105,000 t.

Kev lag luam noj ntawm MC / HPMC nyob rau sab hnub poob Europe tau nkag mus rau toj siab, yog li kev loj hlob ntawm cellulose ether nyob rau sab hnub poob teb chaws Europe kuj raug txwv nyob rau hauv xyoo tas los no.Kev noj ntawm MC thiab nws cov derivatives hauv Western Europe yog 62,000 t hauv 2003 thiab 67,000 t hauv xyoo 2006, suav txog li 34% ntawm tag nrho cov khoom siv cellulose ether.Qhov kev siv loj tshaj plaws kuj yog kev tsim kho kev lag luam.

4.3 Nyiv

Shin-yue Chemical yog lub chaw tsim khoom thoob ntiaj teb ntawm methyl cellulose thiab nws cov derivatives.Xyoo 2003 nws tau txais Clariant ntawm lub teb chaws Yelemees;Xyoo 2005 nws tau nthuav nws cov nroj tsuag Naoetsu los ntawm 20,000 L / a rau 23,000 t / a.Xyoo 2006, Shin-Yue nthuav dav cellulose ether peev xwm ntawm SE Tulose los ntawm 26,000 t / aa mus rau 40,000 t / a, thiab tam sim no tag nrho cov peev txheej txhua xyoo ntawm Shin-Yue's cellulose ether lag luam thoob ntiaj teb yog txog 63,000 t / a.Thaum Lub Peb Hlis 2007, Shin-etsu tau tso tseg kev tsim cov cellulose derivatives ntawm nws cov nroj tsuag Naoetsu vim muaj kev tawg.Kev tsim khoom rov pib dua thaum lub Tsib Hlis 2007. Shin-etsu npaj yuav MC rau cov khoom siv hauv tsev los ntawm Dow thiab lwm tus neeg muag khoom thaum tag nrho cov cellulose derivatives muaj nyob rau ntawm cov nroj tsuag.

Xyoo 2006, Nyiv tag nrho cov khoom ntawm cellulose ether uas tsis yog CMC yog kwv yees li 19,900 t.Kev tsim khoom ntawm MC, HPMC thiab HEMC suav txog 85% ntawm tag nrho cov khoom.Cov txiaj ntsig ntawm MC thiab HEC yog 1.69 t thiab 2 100 t, feem.Xyoo 2006, tag nrho kev noj ntawm nonionic cellulose ether hauv Nyiv yog 11,400 t.Cov zis ntawm MC thiab HEC yog 8500t thiab 2000t feem.

5,lub domestic cellulose ether ua lag luam

5.1 Ntau lawm muaj peev xwm

Tuam Tshoj yog lub ntiaj teb loj tshaj plaws tsim khoom thiab cov neeg siv khoom ntawm CMC, nrog ntau tshaj 30 lub tuam txhab thiab qhov nruab nrab txhua xyoo tso zis ntau tshaj 20%.Nyob rau hauv 2007, Tuam Tshoj lub peev xwm ntau lawm ntawm CMC yog hais txog 180,000 t / a thiab cov zis yog 65,000 ~ 70,000 t.CMC suav txog ze li ntawm 85% ntawm tag nrho, thiab nws cov khoom siv tsuas yog siv rau hauv cov txheej txheem, kev ua zaub mov thiab kev rho tawm roj.Nyob rau hauv xyoo tas los no, kev thov hauv tsev rau lwm cov khoom siv cellulose ether uas tsis yog CMC tau nce ntxiv.Tshwj xeeb, kev lag luam kws tshuaj xav tau HPMC thiab MC zoo.

Kev tshawb fawb thiab kev tsim kho thiab kev tsim khoom ntawm nonionic cellulose ether pib hauv 1965. Lub chaw tshawb fawb thiab kev loj hlob tseem ceeb yog Wuxi Chemical Research thiab Design Institute.Nyob rau hauv xyoo tas los no, kev tshawb fawb thiab kev loj hlob ntawm HPMC hauv Luzhou Chemical Plant thiab Hui 'ib qho tshuaj cog tau ua tiav sai.Raws li kev soj ntsuam, nyob rau xyoo tas los no, qhov kev thov rau HPMC hauv peb lub teb chaws tau loj hlob ntawm 15% hauv ib xyoos, thiab feem ntau ntawm HPMC cov cuab yeej tsim khoom hauv peb lub teb chaws tau tsim nyob rau xyoo 1980 thiab 1990s.Luzhou Chemical Plant Tianpu Fine Chemical pib tshawb fawb thiab tsim HPMC dua thaum xyoo 1980s, thiab maj mam hloov thiab nthuav tawm ntawm cov khoom siv me me.Thaum pib ntawm 1999, HPMC thiab MC cov khoom siv nrog tag nrho cov peev txheej tsim tau ntawm 1400 t / a tau tsim, thiab cov khoom lag luam zoo tau mus txog qib thoob ntiaj teb.Nyob rau hauv 2002, peb lub teb chaws MC / HPMC muaj peev xwm ntau lawm yog hais txog 4500 t / a, lub peev xwm ntau lawm ntawm ib tsob nroj yog 1400 t / a, uas tau tsim thiab muab tso rau hauv lub lag luam nyob rau hauv 2001 nyob rau hauv Luzhou North Chemical Industry Co., LTD.Hercules Tuam Tsev Tshuaj Co., Ltd. muaj Luzhou North hauv Luzhou thiab Suzhou Tuam Tsev hauv Zhangjiagang ob qhov chaw tsim khoom, lub peev xwm ntawm methyl cellulose ether mus txog 18 000 t / a.Nyob rau hauv 2005, cov zis ntawm MC / HPMC yog hais txog 8 000 t, thiab lub ntsiab ntau lawm enterprise yog Shandong Ruitai Chemical Co., LTD.Nyob rau hauv 2006, tag nrho cov tsim muaj peev xwm ntawm MC / HPMC nyob rau hauv peb lub teb chaws yog hais txog 61,000 t / a, thiab lub peev xwm ntawm HEC yog hais txog 12,000 t / a.Feem ntau pib ntau lawm hauv 2006. Muaj ntau tshaj 20 manufacturers ntawm MC/HPMC.HEMC.Tag nrho cov khoom ntawm nonionic cellulose ether nyob rau hauv 2006 yog hais txog 30-40,000 t.Kev tsim khoom hauv tsev ntawm cellulose ether yog dispersed ntau dua, cov cellulose ether uas twb muaj lawm ntau lawm tuam txhab uas muag mus txog 50 los yog li ntawd.

5.2 Kev siv

Nyob rau hauv 2005, kev noj ntawm MC / HPMC nyob rau hauv Tuam Tshoj yog ze li ntawm 9 000 t, feem ntau nyob rau hauv polymer ntau lawm thiab tsim kev lag luam.Kev noj ntawm nonionic cellulose ether nyob rau hauv 2006 yog hais txog 36,000 t.

5.2.1 Cov khoom siv hauv tsev

MC/HPMC feem ntau yog ntxiv rau cov cement, mortar thiab mortar hauv txawv teb chaws los txhim kho kev tsim kho kom zoo thiab ua haujlwm zoo.Nyob rau hauv xyoo tas los no, nrog rau txoj kev loj hlob ntawm domestic kev tsim kho kev lag luam, tshwj xeeb tshaj yog nce qib high-qib tsev.Qhov kev thov ntau ntxiv rau cov khoom siv hauv tsev zoo tau txhawb nqa kev siv MC/HPMC.Tam sim no, domestic MC / HPMC yog tsuas yog ntxiv rau phab ntsa pobzeb kua nplaum hmoov, gypsum qib phab ntsa scraping putty, gypsum caulking putty thiab lwm yam ntaub ntawv.Xyoo 2006, kev siv MC / HPMC hauv kev tsim kho kev lag luam yog 10 000 t, suav txog 30% ntawm tag nrho cov kev siv hauv tsev.Nrog rau kev txhim kho kev lag luam hauv tsev, tshwj xeeb tshaj yog kev txhim kho qib ntawm kev tsim kho tshuab, nrog rau kev txhim kho lub tsev zoo, kev noj ntawm MC / HPMC hauv kev tsim kho yuav nce ntxiv, thiab kev noj yuav tsum tau ua. kom ncav cuag ntau tshaj 15 000 t hauv 2010.

5.2.2 Polyvinyl chloride

PVC ntau lawm los ntawm txoj kev raug ncua yog qhov thib ob loj tshaj plaws ntawm MC / HPMC.Thaum cov txheej txheem raug tshem tawm siv los tsim PVC, cov txheej txheem dispersion ncaj qha cuam tshuam rau qhov zoo ntawm cov khoom polymer thiab nws cov khoom tiav.Ntxiv ib qho me me ntawm HPMC tuaj yeem tswj tau qhov loj me me ntawm cov khoom tawg thiab txhim kho thermal stability ntawm resin.Feem ntau, qhov sib ntxiv yog 0.03% -0.05% ntawm cov zis ntawm PVC.Nyob rau hauv 2005, lub teb chaws tso zis ntawm polyvinyl chloride (PVC) yog 6.492 lab t, ntawm uas raug ncua txoj kev accounted rau 88%, thiab HPMC noj yog hais txog 2 000 t.Raws li txoj kev loj hlob ntawm domestic PVC ntau lawm, nws xav tias cov khoom ntawm PVC yuav ncav cuag ntau tshaj 10 lab t nyob rau hauv 2010. Suspension polymerization txheej txheem yog yooj yim, yooj yim los tswj, thiab yooj yim rau loj-scale ntau lawm.Cov khoom lag luam muaj cov yam ntxwv ntawm kev hloov pauv muaj zog, uas yog cov thev naus laus zis ntawm PVC ntau lawm yav tom ntej, yog li tus nqi ntawm HPMC nyob rau hauv lub tshav pob ntawm polymerization yuav nce ntxiv, tus nqi yuav tsum yog li ntawm 3 000 t xyoo 2010.

5.2.3 Xim, khoom noj khoom haus thiab tshuaj

Coatings thiab khoom noj khoom haus / tshuaj ntau lawm kuj tseem ceeb qhov chaw noj rau MC/HPMC.Kev siv hauv tsev yog 900 t thiab 800 t feem.Tsis tas li ntawd, cov tshuaj niaj hnub, cov nplaum thiab lwm yam kuj tseem siv tau qee yam ntawm MC / HPMC.Nyob rau yav tom ntej, qhov kev thov rau MC/HPMC hauv daim ntawv thov no yuav nce ntxiv.

Raws li kev txheeb xyuas saum toj no.Hauv xyoo 2010, tag nrho qhov kev thov ntawm MC / HPMC hauv Suav teb yuav ncav cuag 30 000 t.

5.3 Ntshuam thiab Export

Nyob rau hauv xyoo tas los no, nrog rau kev loj hlob sai ntawm peb kev lag luam thiab cellulose ether ntau lawm, cellulose ether ntshuam thiab xa tawm kev lag luam kev lag luam tau loj hlob sai, thiab kev xa tawm ceev tshaj qhov ceev ceev.

Vim tias qhov zoo HPMC thiab MC xav tau los ntawm kev lag luam kws tshuaj tsis tuaj yeem ua tau raws li kev xav tau ntawm kev lag luam, yog li nrog kev lag luam xav tau kev loj hlob zoo cellulose ether, qhov nruab nrab txhua xyoo kev loj hlob ntawm cov ntshuam ntawm cellulose ether mus txog ze li ntawm 36% los ntawm 2000 mus rau 2007. Ua ntej 2003, peb lub teb chaws yeej tsis export cellulose ether khoom.Txij li xyoo 2004, kev xa tawm ntawm cellulose ether tshaj li l000 t thawj zaug.Los ntawm 2004 txog 2007, qhov nruab nrab txhua xyoo kev loj hlob yog 10%.Nyob rau hauv 2007, lub export ntim tau tshaj lub ntshuam ntim, ntawm cov export khoom yog mas ionic cellulose ether.

6. Kev txheeb xyuas kev sib tw hauv kev lag luam thiab cov lus qhia txog kev txhim kho

6.1 Kev soj ntsuam ntawm kev sib tw kev lag luam

6.1.1 Cov khoom siv raw

Cellulose ether zus tau tej cov thawj cov ntaub ntawv tseem ceeb yog ntoo pulp, nws cov nqi sib piv cov nqi nce, muaj kev cuam tshuam lub voj voog kev lag luam thiab qhov kev thov rau ntoo pulp.Qhov thib ob loj tshaj plaws ntawm cellulose yog lint.Nws qhov chaw muaj kev cuam tshuam me ntsis rau lub voj voog kev lag luam.Nws yog tsuas yog txiav txim siab los ntawm paj rwb sau.Kev tsim cov cellulose ether siv cov ntoo ntoo tsawg dua li lwm cov khoom siv tshuaj, xws li acetate fiber thiab viscose fiber.Rau cov tuam txhab, cov nqi raw khoom yog qhov kev hem thawj loj tshaj plaws rau kev loj hlob.

6.1.2 Kev xav tau

Kev noj cov cellulose ether nyob rau hauv ntau qhov chaw noj xws li tshuaj ntxuav tes, coatings, tsev cov khoom thiab oilfield kho cov neeg ua hauj lwm muaj tsawg tshaj li 50% ntawm tag nrho cov cellulose ether ua lag luam.Tus so ntawm cov neeg siv khoom lag luam yog fragmented.Cellulose ether noj nyiaj rau ib feem me me ntawm cov khoom siv raw hauv cov cheeb tsam no.Yog li ntawd, cov tuam txhab lag luam no tsis muaj lub hom phiaj los tsim cov cellulose ether tab sis yuav los ntawm kev ua lag luam.Kev hem thawj ntawm kev ua lag luam feem ntau yog los ntawm lwm cov ntaub ntawv nrog cov haujlwm zoo xws li cellulose ether.

6.1.3 Production

Kev nkag teb chaws ntawm qib kev lag luam CMC yog qis dua li ntawm HEC thiab MC, tab sis kev ua kom zoo CMC muaj kev nkag siab dua thiab ntau txoj kev siv tshuab.Kev teeb meem kev nkag mus rau hauv kev tsim cov HECs thiab MCS yog siab dua, ua rau cov neeg xa khoom tsawg dua ntawm cov khoom no.Cov txheej txheem tsim khoom ntawm HECs thiab MCS yog qhov tsis pub leej twg paub.Cov txheej txheem tswj kev xav tau yog qhov nyuaj heev.Cov neeg tsim khoom tuaj yeem tsim ntau qib thiab sib txawv ntawm HEC thiab MC cov khoom.

6.1.4 Cov neeg sib tw tshiab

Kev tsim khoom tsim tawm ntau ntawm cov khoom lag luam thiab cov nqi ib puag ncig yog siab.ib qho tshiab 10,000 t / ib tsob nroj yuav raug nqi $ 90 lab txog $ 130 lab.Hauv Tebchaws Meskas, Western Europe thiab Nyiv.Cellulose ether kev lag luam feem ntau yog qis dua kev nqis peev dua.Hauv kev lag luam uas twb muaj lawm.Cov chaw tsim khoom tshiab tsis muaj kev sib tw.Txawm li cas los xij nyob rau hauv peb lub teb chaws peev yog qhov tsawg thiab peb lub lag luam hauv tsev muaj kev cia siab rau kev loj hlob.Nrog rau kev nce qib ntawm technology.Kev nqis peev hauv kev tsim khoom siv yog nce.Yog li tsim ib qho kev lag luam ntau dua rau cov neeg tuaj tshiab.Txawm tias cov tuam txhab uas twb muaj lawm yuav tsum tau nthuav dav ntau lawm yog tias muaj kev tso cai.

Kev nqis peev hauv R&D rau HECs thiab MCS yuav tsum tau tswj hwm txhawm rau txhim kho cov khoom siv tshiab thiab cov ntawv thov tshiab.Vim yog cov ethylene thiab propylene oxides.Nws kev lag luam ntau lawm muaj kev pheej hmoo ntau dua.Thiab cov tshuab tsim khoom ntawm kev lag luam CMC muaj.Thiab qhov yooj yim peev txheej pib qis dua.Kev tsim cov qib refined yuav tsum muaj kev nqis peev loj thiab kev siv thev naus laus zis.

6.1.5 Cov qauv kev sib tw tam sim no hauv peb lub tebchaws

Qhov tshwm sim ntawm kev sib tw tsis sib haum kuj muaj nyob rau hauv kev lag luam cellulose ether.Piv nrog rau lwm cov haujlwm tshuaj.Cellulose ether yog kev nqis peev me me.Lub sijhawm tsim kho yog luv.Siv dav.Qhov teeb meem kev lag luam tam sim no tau txhawb nqa, vim tias qhov tsis sib haum xeeb nthuav dav ntawm kev lag luam tshwm sim yog qhov hnyav dua.Kev lag luam profits poob.Txawm hais tias tam sim no CMC kev khiav hauj lwm tus nqi tau txais.Tab sis raws li lub peev xwm tshiab txuas ntxiv tso tawm.Kev sib tw ua lag luam yuav dhau los ua nruj heev.

Hauv xyoo tas los no.Vim yog domestic overcapacity.CMC cov zis 13 tau tuav txoj kev loj hlob sai.Tab sis xyoo no, kev txiav se tawm ntawm cov se rov qab, qhov kev txaus siab ntawm RMB tau ua rau cov khoom xa tawm tau poob qis.Yog li ntawd, ntxiv dag zog rau kev hloov pauv.Kev txhim kho cov khoom zoo thiab xa tawm cov khoom siv high-end yog qhov tseem ceeb tshaj plaws ntawm kev lag luam.Peb lub teb chaws cellulose ether kev lag luam yog piv nrog txawv teb chaws.Txawm li cas los xij, nws tsis yog kev lag luam me me.Tab sis qhov tsis muaj kev txhim kho kev lag luam, kev hloov pauv hauv kev lag luam plays lub luag haujlwm txiav txim siab hauv kev lag luam ua lag luam.Rau qee qhov, nws tau cuam tshuam kev lag luam kev nqis peev hauv kev hloov kho thev naus laus zis.

6.2 Cov lus qhia

(1) Ua kom muaj kev tshawb fawb ywj pheej thiab kev tsim kho tshiab los tsim ntau yam tshiab.Ionic cellulose ether yog sawv cev los ntawm CMC (sodium carboxymethyl cellulose).Nws muaj keeb kwm ntev ntawm kev loj hlob.Nyob rau hauv lub nruam stimulation ntawm kev ua lag luam xav tau.Nonionic cellulose ether cov khoom tau tshwm sim nyob rau hauv xyoo tas los no.Qhia kev loj hlob muaj zog.Qhov zoo ntawm cellulose ether cov khoom yog txiav txim siab los ntawm purity.Thoob ntiaj teb.Lub Chaw Tswj Xyuas Khoom Noj thiab Tshuaj Hauv Tebchaws Meskas thiab lwm yam kev xav tau ntawm CMC cov khoom purity yuav tsum siab dua 99.5%.Tam sim no, cov zis ntawm peb lub teb chaws CMC tau suav txog 1/3 ntawm lub ntiaj teb cov zis.Tab sis cov khoom lag luam tsis zoo, 1: 1 feem ntau yog cov khoom siv qis, tsis muaj nqi ntxiv.CMC xa tawm ntau dua li kev xa tawm txhua xyoo.Tab sis tus nqi tag nrho yog tib yam.Nonionic cellulose ethers kuj muaj tsawg heev productivity.Yog li ntawd, nws yog ib qho tseem ceeb los ua kom cov khoom tsim thiab kev loj hlob ntawm nonionic cellulose ether.Tam sim no.Cov lag luam txawv teb chaws tuaj rau peb lub teb chaws los koom ua ke cov lag luam thiab tsim cov chaw tsim khoom.Peb lub teb chaws yuav tsum tau txeeb lub sijhawm ntawm txoj kev loj hlob los txhawb cov qib tsim khoom thiab cov khoom zoo.Hauv xyoo tas los no.Qhov kev thov hauv tsev rau lwm cov khoom siv cellulose ether uas tsis yog CMC yog nce.Tshwj xeeb, kev lag luam kws tshuaj xav tau kev ua haujlwm zoo HPMC thiab MC tseem xav tau qee qhov kev xa tawm.Kev tsim kho thiab kev tsim khoom yuav tsum tau teeb tsa.

(2) Txhim kho cov cuab yeej thev naus laus zis.Cov cuab yeej siv tshuab theem ntawm cov txheej txheem purification hauv tsev yog tsawg.Kev txwv nruj rau txoj kev loj hlob ntawm kev lag luam.Lub ntsiab impurity nyob rau hauv cov khoom yog sodium chloride.Ua ntej.Tripod centrifuge yog dav siv nyob rau hauv peb lub teb chaws.Cov txheej txheem purification yog kev ua haujlwm tsis sib xws, kev siv zog ua haujlwm siab, kev siv zog siab.Cov khoom zoo kuj tseem nyuaj rau kev txhim kho.Lub teb chaws cellulose ether kev lag luam Association tau pib daws qhov teeb meem hauv 2003. Kev txhawb nqa tau tam sim no tau ua tiav.Lub purity ntawm qee cov khoom lag luam tau mus txog ntau dua 99.5%.Ntxiv rau.Muaj qhov sib txawv ntawm qhov automation degree ntawm tag nrho cov kab ntau lawm thiab cov teb chaws txawv teb chaws.Nws raug nquahu kom xav txog kev sib xyaw ntawm cov khoom siv txawv teb chaws thiab cov khoom siv hauv tsev.Qhov tseem ceeb txuas txhawb nqa khoom siv.Txhawm rau txhim kho automation ntawm cov kab ntau lawm.Piv nrog rau cov khoom ionic, uas tsis yog-ionic cellulose ether yuav tsum tau siab dua kev kawm.Nws yog qhov ceev kom tawg los ntawm kev cuam tshuam ntawm cov txheej txheem ntau lawm thiab daim ntawv thov.

(3) Ua tib zoo saib xyuas cov teeb meem ib puag ncig thiab peev txheej.Xyoo no yog xyoo ntawm peb lub zog txuag thiab emission txo.Nws yog ib qho tseem ceeb heev rau kev txhim kho kev lag luam los kho cov teeb meem ib puag ncig kom raug.Cov dej phwj tawm los ntawm kev lag luam cellulose ether yog cov kuab tshuaj distilled, uas muaj cov ntsiab lus ntsev thiab siab COD.Cov txheej txheem biochemical yog nyiam.

Hauv peb lub tebchaws.Lub ntsiab raw khoom rau zus tau tej cov cellulose ether yog paj rwb ntaub plaub.Cov paj rwb yog cov khib nyiab ua liaj ua teb ua ntej xyoo 1980s, siv nws los tsim cov cellulose ether yog tig pov tseg rau hauv kev lag luam khoom muaj nqis.Txawm li cas los.Nrog rau kev loj hlob sai ntawm viscose fiber ntau thiab lwm yam kev lag luam.Cov paj rwb luv luv velvet tau ntev dhau los ua cov khoom muaj nqis.Demand yog teem rau outstrip mov.Tuam txhab uas muag yuav tsum tau txhawb kom import ntoo pulp los ntawm txawv teb chaws xws li Russia, Brazil thiab Canada.Txhawm rau daws qhov teeb meem ntawm kev tsis txaus ntawm cov khoom siv raw, paj rwb ntaub plaub yog hloov ib nrab.