BE422356A - - Google Patents

Info

Publication number

BE422356A

BE422356A BE422356DA BE422356A BE 422356 A BE422356 A BE 422356A BE 422356D A BE422356D A BE 422356DA BE 422356 A BE422356 A BE 422356A

Authority

BE

Belgium

Prior art keywords

parts

mixture

acid

cellulose

hours

Prior art date

Links

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• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 48
• VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 28
• 238000000034 method Methods 0.000 claims description 13
• 239000003054 catalyst Substances 0.000 claims description 12
• 230000000397 acetylating effect Effects 0.000 claims description 11
• 229920002678 cellulose Polymers 0.000 claims description 10
• 239000001913 cellulose Substances 0.000 claims description 10
• 229920002301 cellulose acetate Polymers 0.000 claims description 7
• 239000002253 acid Substances 0.000 claims description 5
• 230000021736 acetylation Effects 0.000 claims description 4
• 238000006640 acetylation reaction Methods 0.000 claims description 4
• 239000012296 anti-solvent Substances 0.000 claims description 3
• YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 36
• QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 23
• WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 21
• 239000000203 mixture Substances 0.000 description 21
• RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
• 239000007788 liquid Substances 0.000 description 10
• LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
• 238000005406 washing Methods 0.000 description 5
• 238000001035 drying Methods 0.000 description 4
• 238000001914 filtration Methods 0.000 description 4
• 150000003839 salts Chemical class 0.000 description 4
• UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
• XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
• 150000007513 acids Chemical class 0.000 description 3
• 238000004519 manufacturing process Methods 0.000 description 3
• 239000011541 reaction mixture Substances 0.000 description 3
• QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
• RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
• 229910052500 inorganic mineral Inorganic materials 0.000 description 2
• 239000000463 material Substances 0.000 description 2
• 239000002184 metal Substances 0.000 description 2
• 239000011707 mineral Substances 0.000 description 2
• 239000000126 substance Substances 0.000 description 2
• 150000001242 acetic acid derivatives Chemical class 0.000 description 1
• 230000004913 activation Effects 0.000 description 1
• 150000008064 anhydrides Chemical class 0.000 description 1
• 230000001627 detrimental effect Effects 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 238000001704 evaporation Methods 0.000 description 1
• 230000008020 evaporation Effects 0.000 description 1
• 238000011084 recovery Methods 0.000 description 1
• 239000002904 solvent Substances 0.000 description 1
• AGGIJOLULBJGTQ-UHFFFAOYSA-N sulfoacetic acid Chemical compound OC(=O)CS(O)(=O)=O AGGIJOLULBJGTQ-UHFFFAOYSA-N 0.000 description 1
• 239000000725 suspension Substances 0.000 description 1
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1