CAS 8068-03-9 Organosolv Lignin hauv Tshuag

1. Taw qhia

Lignin yog ib yam ntawm cov organic organic polymer nyob rau hauv cov nroj tsuag, thiab nws yog ib tug tshiab, tsawg-carbon thiab ib puag ncig tus phooj ywg cov ntaub ntawv polymer. Nws tuaj yeem siv dav los ua cov khoom siv roj av hauv ntau yam polymer.
Organosolv lignin tsim muaj ntau yam zoo heev, xws li siab purity, nruab nrab molecular hnyav, me me dispersion coefficient, uniform dispersion, insoluble nyob rau hauv dej thiab soluble nyob rau hauv ntau yam organic solvents. Cov txheej txheem molecular muaj ntau yam gene pawg, xws li phenolic hydroxyl, cawv hydroxyl, aromatic pawg, methoxy, conjugated bond thiab lwm yam. Yog li ntawd, ntau hom tshuaj tiv thaiv tuaj yeem ua tau, xws li oxidation, txo, hydrolysis, acidolysis, photolysis, biodegradation, sulfonation, Polycondensation, graft copolymerization thiab lwm yam.
Lignin npaj yaj nyob rau hauv cov txheej txheem ntawm cov organic hnyav pulping thiab tau tom qab sib cais: Organosolv lignin.
Organosolv lignin tsis tsuas yog siv los ua cov khoom siv roj hmab los txhim kho cov khoom siv roj hmab, tab sis kuj tuaj yeem siv rau hauv cov yas thiab cov nplaum los txhim kho cov khoom ntawm cov khoom siv roj hmab. Nws kuj tseem siv rau hauv cov khoom ntim khoom noj tshiab thiab ua lub luag haujlwm ib puag ncig.

Organic kuab tshuaj lignin tau khaws cia zoo vim nws cov qauv molecular thiab nws pawg tshuaj tiv thaiv tsis tshua muaj kev cuam tshuam hauv cov tshuaj tiv thaiv. Yog li ntawd, raws li ib tug raw khoom rau polymer synthesis los yog hloov cov khoom, lignin muaj qhov zoo ntawm lwm yam lignin, xws li cov feem ntau ntawm cov reactive pawg, yooj yim sib cais thiab purification los ntawm cov kuab tshuaj, thiab tsis muaj leej faj impurities.

2. Muaj nuj nqi

2.1 Daim ntawv thov ntawm polyurethane hloov cov ntaub ntawv

Piv nrog rau cov ntsev lignin ib txwm, Organosolv lignin muaj cov ntsiab lus siab ntawm cov pab pawg reactive thiab yooj yim rau react ncaj qha nrog isocyanates los ua polyurethane. Daim ntawv thov ntawm lignin nyob rau hauv daim teb ntawm polyurethane ua npuas ncauj qhia tau hais tias hnyav-raws lignin yuav hloov tau ib co polyols los npaj polyurethane ua npuas ncauj. Lub thermal rwb thaiv tsev ntawm lignin hloov polyurethane ua npuas ncauj yog zoo. Nws tseem tuaj yeem txo cov nqi tsim khoom yam tsis muaj kev cia siab ntawm kev nrov thiab daim ntawv thov.

2.2 Nws yog ib qho tshiab, qis carbon, ib puag ncig tiv thaiv cov khoom siv polymer. Nws tuaj yeem siv dav los ua cov khoom siv roj av hauv ntau yam polymer.

3. Daim ntawv thov

Organosolv lignin tseem ceeb siv rau Petroleum, tshuaj, khoom noj

4.Quality Standard

5.Txoj kev tsom xam

Kev txiav txim siab ntawm acid detergent lignin los ntawm lim hnab txoj kev hauv beaker.
Cov kauj ruam:
Kev npaj cov hnab lim thiab cov qauv:
1. Siv lub cim ntsuas qhov hnyav los ntsuas lub hnab lim thiab ntsuas nws (m 1).
ob.. {{0}}.5 g (± 0.05 g) cov qauv npaj (m) tau hnyav ncaj qha thiab raug rau hauv lub hnab lim. Cov qauv yuav tsum tau crushed los ntawm 1 mm sieve.
3. Sib khi nrog lub tshuab sealing txog 5 hli los ntawm ntug sab saud ntawm lub hnab lim. Tom qab ntawd cov qauv yog flattened nyob rau hauv lub hnab lim thiab muab sib npaug.
4. Siv tsawg kawg ib lub hnab lim dej (C1) thiab ua qhov kev txiav txim siab dawb paug tib lub sijhawm.
5. Ua ntej, nws raug kho raws li txoj kev txiav txim siab ADF.
Tom qab ADF txiav txim siab, muab lub hnab lim qhuav / qauv rau hauv 3 L beaker thiab muab tso rau hauv lub hnab lim nrog 72 feem pua ​​​​sulfuric acid (li 250mL).
Ib qho tseem ceeb: lub hnab lim yuav tsum qhuav tag thiab txias rau hauv chav tsev kub ua ntej ntxiv cov concentrated acid. Yog tias muaj cov dej noo hauv lub hnab lim thiab cov cua sov yog tsim tom qab ntxiv sulfuric acid, nws yooj yim rau scorch cov qauv hauv lub hnab thiab cuam tshuam rau kev txiav txim siab.
1. Muab 2 L beaker rau hauv 3 L beaker rau hauv lub hnab lim. Do lub hnab lim thaum xub thawj thiab nqa 2L beaker nce thiab nqis txog 30 zaug hauv 30 feeb.
Ncuav cov sulfuric acid tom qab 2.3 teev, tom qab ntawd ntxuav nws nrog dej kom tshem tawm cov kua qaub. Rov ntxuav dua kom txog thaum pH nruab nrab. Tom qab ntawd eluate nrog 250 mL acetone rau 3 min kom tshem tawm dej.
3. Qhuav nyob rau hauv ib tug 105 degree qhov cub rau 4 h, ces txias rau chav tsev kub nyob rau hauv lub tshuab ziab khaub ncaws thiab hnyav (m ~ 2).
Tsis txhob muab lub hnab lim tso rau hauv qhov cub kom txog thaum cov acetone tag nrho evaporated.
4. Lub hnab lim tau muab tso rau hauv qhov hnyav (m ~ 3) 30 lossis 50 mL crucible, ashing rau 3 h ntawm 525 degree, txias thiab hnyav

6. NMR

7. Kev ruaj ntseg thiab kev nyab xeeb
Kev ruaj ntseg:
Nyob ruaj khov nyob rau hauv cov xwm txheej zoo (chav kub). Cov Ntaub Ntawv Kev ruaj ntseg muaj nyob rau ntawm koj qhov kev thov.
Kev nyab xeeb:
Raws li kev tshawb fawb, nws muaj kev nyab xeeb rau tib neeg noj.

8. Flow Chart

9. Cov neeg siv lus pom

Peb muaj cov khw muag khoom ntawm Alibaba, Chemicalbook thiab LookChem, los ntawm cov khoom lag luam zoo thiab cov kev pabcuam tsis tau txais kev pabcuam, peb tau txais ntau cov lus pom zoo.

10.Peb Daim Ntawv Pov Thawj
Tau ntau xyoo, peb tau cog lus rau cov khoom tsim khoom optimization thiab kev tsim kom zoo. Peb tau teeb tsa qhov kev tswj hwm zoo thiab tau txais daim ntawv pov thawj ntawm nws.

11. Peb Cov Neeg Siv Khoom

Peb tau tsim kev lag luam kev sib raug zoo nrog Abbott, Unilever, Shiseido, KANS thiab SIMM, thiab lwm yam.

12. Exhibitions

Peb feem ntau tuaj koom kev nthuav qhia thoob ntiaj teb, suav nrog CPhI, FIC, API, Vitafoods, SupplesideWest.