BE561354A - - Google Patents

Info

Publication number

BE561354A

BE561354A BE561354DA BE561354A BE 561354 A BE561354 A BE 561354A BE 561354D A BE561354D A BE 561354DA BE 561354 A BE561354 A BE 561354A

Authority

BE

Belgium

Prior art keywords

cellulose

acid

aqueous

hour

acids

Prior art date

Links

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• 229920002678 cellulose Polymers 0.000 claims description 52
• 239000001913 cellulose Substances 0.000 claims description 49
• 239000002253 acid Substances 0.000 claims description 34
• 239000000203 mixture Substances 0.000 claims description 32
• 239000000725 suspension Substances 0.000 claims description 29
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
• 230000032050 esterification Effects 0.000 claims description 21
• 238000005886 esterification reaction Methods 0.000 claims description 21
• 150000007513 acids Chemical class 0.000 claims description 18
• 238000006073 displacement reaction Methods 0.000 claims description 18
• 239000011260 aqueous acid Substances 0.000 claims description 12
• 230000007062 hydrolysis Effects 0.000 claims description 11
• 238000006460 hydrolysis reaction Methods 0.000 claims description 11
• 239000002904 solvent Substances 0.000 claims description 11
• 150000001735 carboxylic acids Chemical class 0.000 claims description 10
• 239000007788 liquid Substances 0.000 claims description 10
• 150000002148 esters Chemical class 0.000 claims description 8
• 230000008030 elimination Effects 0.000 claims description 6
• 238000003379 elimination reaction Methods 0.000 claims description 6
• 238000000034 method Methods 0.000 claims description 6
• 239000003054 catalyst Substances 0.000 claims description 4
• 150000008064 anhydrides Chemical class 0.000 claims description 3
• 238000005286 illumination Methods 0.000 claims 1
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 68
• 229960000583 acetic acid Drugs 0.000 description 24
• WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 12
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
• 239000000243 solution Substances 0.000 description 7
• 230000021736 acetylation Effects 0.000 description 6
• 238000006640 acetylation reaction Methods 0.000 description 6
• 150000001732 carboxylic acid derivatives Chemical class 0.000 description 6
• XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
• CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
• 230000002378 acidificating effect Effects 0.000 description 4
• 239000012362 glacial acetic acid Substances 0.000 description 4
• YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
• 229920001131 Pulp (paper) Polymers 0.000 description 3
• 238000001556 precipitation Methods 0.000 description 3
• 235000019260 propionic acid Nutrition 0.000 description 3
• IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 3
• 238000005406 washing Methods 0.000 description 3
• QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
• FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
• 238000001035 drying Methods 0.000 description 2
• 238000001914 filtration Methods 0.000 description 2
• 238000005470 impregnation Methods 0.000 description 2
• 239000000395 magnesium oxide Substances 0.000 description 2
• VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
• 150000005691 triesters Chemical class 0.000 description 2
• BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
• 229920002284 Cellulose triacetate Polymers 0.000 description 1
• 241001522296 Erithacus rubecula Species 0.000 description 1
• 229920000297 Rayon Polymers 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
• 239000007864 aqueous solution Substances 0.000 description 1
• YHASWHZGWUONAO-UHFFFAOYSA-N butanoyl butanoate Chemical compound CCCC(=O)OC(=O)CCC YHASWHZGWUONAO-UHFFFAOYSA-N 0.000 description 1
• 229920002301 cellulose acetate Polymers 0.000 description 1
• 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 230000005484 gravity Effects 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000006386 neutralization reaction Methods 0.000 description 1
• 238000006396 nitration reaction Methods 0.000 description 1
• LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
• 230000009897 systematic effect Effects 0.000 description 1