BE634254A - - Google Patents

Info

Publication number

BE634254A

BE634254A BE634254DA BE634254A BE 634254 A BE634254 A BE 634254A BE 634254D A BE634254D A BE 634254DA BE 634254 A BE634254 A BE 634254A

Authority

BE

Belgium

Prior art keywords

solution

cellulose acetate

concentration

solvent

heated

Prior art date

Links

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• YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 33
• 229920002301 cellulose acetate Polymers 0.000 claims description 30
• 239000002904 solvent Substances 0.000 claims description 23
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
• 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims description 9
• 238000000034 method Methods 0.000 claims description 7
• 239000000203 mixture Substances 0.000 claims description 7
• DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 6
• 239000000463 material Substances 0.000 claims description 4
• 238000004519 manufacturing process Methods 0.000 claims description 3
• 241001201614 Prays Species 0.000 claims 1
• NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims 1
• 239000012141 concentrate Substances 0.000 claims 1
• 238000001704 evaporation Methods 0.000 claims 1
• 239000000243 solution Substances 0.000 description 59
• 238000009987 spinning Methods 0.000 description 17
• OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
• 238000001914 filtration Methods 0.000 description 7
• 238000003756 stirring Methods 0.000 description 6
• LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
• 238000010438 heat treatment Methods 0.000 description 4
• 239000002245 particle Substances 0.000 description 4
• 229920002284 Cellulose triacetate Polymers 0.000 description 3
• 238000002360 preparation method Methods 0.000 description 3
• 239000011877 solvent mixture Substances 0.000 description 3
• KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
• -1 can be used Chemical compound 0.000 description 2
• 229920002678 cellulose Polymers 0.000 description 2
• 239000001913 cellulose Substances 0.000 description 2
• BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
• 229920000875 Dissolving pulp Polymers 0.000 description 1
• LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
• NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
• 150000001298 alcohols Chemical class 0.000 description 1
• 230000015572 biosynthetic process Effects 0.000 description 1
• 239000008364 bulk solution Substances 0.000 description 1
• 125000004432 carbon atom Chemical group C* 0.000 description 1
• 238000007865 diluting Methods 0.000 description 1
• 239000000499 gel Substances 0.000 description 1
• 239000012456 homogeneous solution Substances 0.000 description 1