Cellulose ether upstream kev lag luam

nws lub ntsiab raw cov ntaub ntawv xav tau rau zus tau tej covcellulose ethersuav nrog cov paj rwb zoo (lossis ntoo pulp) thiab qee cov tshuaj hnyav, xws li propylene oxide, methyl chloride, kua caustic soda, caustic soda, ethylene oxide, toluene thiab lwm yam khoom siv. Cov kev lag luam saum toj kawg nkaus ntawm qhov kev lag luam no suav nrog cov paj rwb zoo, cov chaw tsim khoom ntoo thiab qee cov lag luam tshuaj. Tus nqi hloov pauv ntawm cov ntaub ntawv tseem ceeb uas tau hais los saum toj no yuav muaj qhov sib txawv ntawm qhov cuam tshuam rau tus nqi tsim khoom thiab muag tus nqi ntawm cellulose ether.

Tus nqi ntawm cov paj rwb refined kuj yog siab heev. Siv cov khoom siv hauv tsev qib cellulose ether ua piv txwv, thaum lub sijhawm tshaj tawm, tus nqi ntawm cov paj rwb refined suav txog 31.74%, 28.50%, 26.59% thiab 26.90% ntawm cov nqi muag khoom ntawm cov khoom siv hauv tsev qib cellulose ether feem. Tus nqi hloov pauv ntawm cov paj rwb refined yuav cuam tshuam tus nqi ntawm cellulose ether. Lub ntsiab raw khoom rau zus tau tej cov paj rwb refined yog paj rwb linters. Cov paj rwb linters yog ib qho ntawm cov khoom lag luam hauv cov txheej txheem paj rwb, feem ntau yog siv los ua paj rwb pulp, refined paj rwb, nitrocellulose thiab lwm yam khoom. Kev siv tus nqi thiab siv cov paj rwb linters thiab paj rwb sib txawv heev, thiab nws cov nqi yog pom tseeb qis dua li cov paj rwb, tab sis nws muaj qee qhov sib cuam tshuam nrog tus nqi hloov pauv ntawm paj rwb. Kev hloov pauv ntawm tus nqi ntawm cov paj rwb linters cuam tshuam rau tus nqi ntawm cov paj rwb refined.

Qhov kev hloov pauv ntawm tus nqi ntawm cov paj rwb refined yuav muaj qhov sib txawv ntawm qhov cuam tshuam rau kev tswj cov nqi tsim khoom, tus nqi khoom thiab cov txiaj ntsig ntawm cov lag luam hauv kev lag luam no. Thaum tus nqi ntawm cov paj rwb refined siab thiab tus nqi ntawm cov ntoo pulp yog pheej yig, thiaj li yuav txo tau cov nqi, ntoo pulp yuav siv tau los hloov thiab ntxiv rau refined paj rwb, feem ntau yog rau zus tau tej cov cellulose ethers nrog tsawg viscosity xws li. tshuaj thiab zaub mov qibcellulose ethers. Raws li cov ntaub ntawv los ntawm lub vev xaib ntawm National Bureau of Statistics, xyoo 2013, kuv lub teb chaws cog paj paj yog 4.35 lab hectares, thiab lub teb chaws paj rwb tawm yog 6.31 lab tons. Raws li kev txheeb cais los ntawm Tuam Tshoj Cellulose Industry Association, nyob rau hauv 2014, tag nrho cov zis ntawm refined paj rwb uas tsim los ntawm loj domestic refined paj rwb manufacturers yog 332,000 tons, thiab cov khoom ntawm raw khoom yog ntau.

Cov khoom siv tseem ceeb rau kev tsim cov khoom siv tshuaj graphite yog steel thiab graphite carbon. Tus nqi ntawm cov hlau thiab graphite carbon account rau qhov feem ntau ntawm cov nqi tsim khoom ntawm cov khoom siv tshuaj graphite. Tus nqi hloov pauv ntawm cov khoom siv raw yuav muaj qee yam cuam tshuam rau cov nqi tsim khoom thiab muag cov khoom siv tshuaj graphite.