BE502976A - - Google Patents

Info

Publication number

BE502976A

BE502976A BE502976DA BE502976A BE 502976 A BE502976 A BE 502976A BE 502976D A BE502976D A BE 502976DA BE 502976 A BE502976 A BE 502976A

Authority

BE

Belgium

Prior art keywords

cellulose

flow

esterification

layer

liquid

Prior art date

Links

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• 229920002678 cellulose Polymers 0.000 claims description 29
• 239000001913 cellulose Substances 0.000 claims description 28
• 230000032050 esterification Effects 0.000 claims description 22
• 238000005886 esterification reaction Methods 0.000 claims description 22
• WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 15
• 239000007788 liquid Substances 0.000 claims description 14
• VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 12
• 239000000463 material Substances 0.000 claims description 10
• 150000005691 triesters Chemical class 0.000 claims description 10
• 238000000034 method Methods 0.000 claims description 8
• 238000004519 manufacturing process Methods 0.000 claims description 7
• 239000003054 catalyst Substances 0.000 claims description 6
• 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
• 239000000194 fatty acid Substances 0.000 claims description 5
• 229930195729 fatty acid Natural products 0.000 claims description 5
• 150000004665 fatty acids Chemical class 0.000 claims description 5
• 239000012442 inert solvent Substances 0.000 claims description 5
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
• 230000021736 acetylation Effects 0.000 description 9
• 238000006640 acetylation reaction Methods 0.000 description 9
• 238000006243 chemical reaction Methods 0.000 description 8
• VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 6
• 239000000203 mixture Substances 0.000 description 5
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
• 239000002253 acid Substances 0.000 description 4
• 229920001131 Pulp (paper) Polymers 0.000 description 3
• 229920002284 Cellulose triacetate Polymers 0.000 description 2
• 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 2
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
• VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical group C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
• 229920000742 Cotton Polymers 0.000 description 1
• VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
• 150000008065 acid anhydrides Chemical class 0.000 description 1
• 150000007513 acids Chemical class 0.000 description 1
• 150000008064 anhydrides Chemical class 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 239000000835 fiber Substances 0.000 description 1
• 238000010438 heat treatment Methods 0.000 description 1
• 238000013021 overheating Methods 0.000 description 1
• 239000001632 sodium acetate Substances 0.000 description 1
• 235000017281 sodium acetate Nutrition 0.000 description 1
• 239000007790 solid phase Substances 0.000 description 1
• 239000002904 solvent Substances 0.000 description 1
• 238000005507 spraying Methods 0.000 description 1
• 238000003756 stirring Methods 0.000 description 1
• 230000001131 transforming effect Effects 0.000 description 1
• 238000005406 washing Methods 0.000 description 1