BE366142A - - Google Patents
Info
- Publication number
- BE366142A BE366142A BE366142DA BE366142A BE 366142 A BE366142 A BE 366142A BE 366142D A BE366142D A BE 366142DA BE 366142 A BE366142 A BE 366142A
- Authority
- BE
- Belgium
- Prior art keywords
- cellulose
- liquid
- acetylation
- cellulose acetate
- sulfur dioxide
- Prior art date
Links
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 72
- 239000007788 liquid Substances 0.000 claims description 55
- 229920002301 cellulose acetate Polymers 0.000 claims description 33
- 235000010269 sulphur dioxide Nutrition 0.000 claims description 32
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical group CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 30
- 238000011282 treatment Methods 0.000 claims description 26
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 24
- 230000036571 hydration Effects 0.000 claims description 24
- 238000006703 hydration reaction Methods 0.000 claims description 24
- 238000006640 acetylation reaction Methods 0.000 claims description 23
- 229920002678 cellulose Polymers 0.000 claims description 22
- 239000001913 cellulose Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 20
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 19
- 230000021736 acetylation Effects 0.000 claims description 18
- 238000001556 precipitation Methods 0.000 claims description 18
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 230000001376 precipitating effect Effects 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 10
- 229920003086 cellulose ether Polymers 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 7
- -1 cellulose acetate Chemical class 0.000 claims description 7
- 230000000887 hydrating effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000012345 acetylating agent Substances 0.000 claims description 4
- 230000029087 digestion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 claims description 2
- 235000005985 organic acids Nutrition 0.000 claims description 2
- 239000012429 reaction media Substances 0.000 claims 2
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 18
- 229960000583 acetic acid Drugs 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 4
- 239000001632 sodium acetate Substances 0.000 description 4
- 235000017281 sodium acetate Nutrition 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 235000019439 ethyl acetate Nutrition 0.000 description 3
- 239000012362 glacial acetic acid Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 description 1
- UPODXJOTVHSJMI-UHFFFAOYSA-M O=[S+]=O.CC([O-])=O Chemical compound O=[S+]=O.CC([O-])=O UPODXJOTVHSJMI-UHFFFAOYSA-M 0.000 description 1
- 241001674048 Phthiraptera Species 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 230000000397 acetylating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229920006218 cellulose propionate Polymers 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006196 deacetylation Effects 0.000 description 1
- 238000003381 deacetylation reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE366142A true BE366142A (cs) |
Family
ID=38320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE366142D BE366142A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE366142A (cs) |
-
0
- BE BE366142D patent/BE366142A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE366142A (cs) | ||
| FR2465763A1 (fr) | Adjuvant en mesophase contenant un derive de cellulose et un acide inorganique | |
| BE366143A (cs) | ||
| CH149719A (fr) | Procédé et appareil pour amener les esters de cellulose d'acides organiques à une condition physique favorable à leurs traitements subséquents. | |
| US1949213A (en) | Precipitation of cellulose esters | |
| CH151972A (fr) | Procédé et installation pour amener les esters de cellulose d'acides organiques à une condition physique favorable à leurs traitements subséquents. | |
| FR2800389A1 (fr) | Procede de tannage de peaux ou de materiaux contenant du collagene, avec un fluide dense sous pression | |
| US1839295A (en) | Method of making and treating cellulose esters and products thus obtained | |
| BE465744A (cs) | ||
| BE357748A (cs) | ||
| BE352207A (cs) | ||
| BE337599A (cs) | ||
| BE423377A (cs) | ||
| BE627052A (cs) | ||
| JPH1067860A (ja) | 高分子化合物溶液の製造方法 | |
| JPH08269226A (ja) | 発泡ポリスチロールの体積縮小化処理方法及び処理装置 | |
| BE572851A (cs) | ||
| BE487064A (cs) | ||
| BE558029A (cs) | ||
| BE496200A (cs) | ||
| BE535665A (cs) | ||
| BE732322A (cs) | ||
| BE466473A (cs) | ||
| WO1996037518A1 (fr) | Procede d'extraction et de production de polymeres hydrocolloides a partir de matiere vegetale ou animale | |
| BE521232A (cs) |