BE497366A - - Google Patents

Info

Publication number

BE497366A

BE497366A BE497366DA BE497366A BE 497366 A BE497366 A BE 497366A BE 497366D A BE497366D A BE 497366DA BE 497366 A BE497366 A BE 497366A

Authority

BE

Belgium

Prior art keywords

methylene chloride

cellulose

hydrolysis

percent

solution

Prior art date

Links

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• YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 78
• 230000007062 hydrolysis Effects 0.000 claims description 27
• 238000006460 hydrolysis reaction Methods 0.000 claims description 27
• 229920002678 cellulose Polymers 0.000 claims description 24
• 239000001913 cellulose Substances 0.000 claims description 16
• 238000000034 method Methods 0.000 claims description 10
• 229920002301 cellulose acetate Polymers 0.000 claims description 9
• 150000005691 triesters Chemical class 0.000 claims description 8
• 238000004519 manufacturing process Methods 0.000 claims description 6
• 125000002252 acyl group Chemical group 0.000 claims description 2
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
• WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 9
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 8
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
• 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 6
• CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
• 229920002284 Cellulose triacetate Polymers 0.000 description 4
• 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 4
• 239000003795 chemical substances by application Substances 0.000 description 4
• 150000002148 esters Chemical class 0.000 description 4
• 230000003301 hydrolyzing effect Effects 0.000 description 4
• 229960000583 acetic acid Drugs 0.000 description 3
• 239000000839 emulsion Substances 0.000 description 3
• 229920001131 Pulp (paper) Polymers 0.000 description 2
• FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
• 239000002253 acid Substances 0.000 description 2
• 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
• 239000002904 solvent Substances 0.000 description 2
• VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
• 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
• 230000021736 acetylation Effects 0.000 description 1
• 238000006640 acetylation reaction Methods 0.000 description 1
• 230000002378 acidificating effect Effects 0.000 description 1
• 239000003054 catalyst Substances 0.000 description 1
• 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
• 229920001727 cellulose butyrate Polymers 0.000 description 1
• 239000003153 chemical reaction reagent Substances 0.000 description 1
• 238000004821 distillation Methods 0.000 description 1
• 238000009826 distribution Methods 0.000 description 1
• 230000032050 esterification Effects 0.000 description 1
• 238000005886 esterification reaction Methods 0.000 description 1
• 238000001914 filtration Methods 0.000 description 1
• 239000012362 glacial acetic acid Substances 0.000 description 1
• 230000002045 lasting effect Effects 0.000 description 1
• TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
• 230000004048 modification Effects 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 239000011780 sodium chloride Substances 0.000 description 1
• 238000009987 spinning Methods 0.000 description 1
• 238000003756 stirring Methods 0.000 description 1