BE522691A - - Google Patents
Info
- Publication number
- BE522691A BE522691A BE522691DA BE522691A BE 522691 A BE522691 A BE 522691A BE 522691D A BE522691D A BE 522691DA BE 522691 A BE522691 A BE 522691A
- Authority
- BE
- Belgium
- Prior art keywords
- tank
- precipitation
- precipitating agent
- continuously
- solution
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 24
- 238000001556 precipitation Methods 0.000 claims description 17
- 229920002678 cellulose Polymers 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 230000001376 precipitating effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 229920002301 cellulose acetate Polymers 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- -1 aceto-butyrate Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery 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
- C08B3/22—Post-esterification treatments, including purification
- C08B3/26—Isolation of the cellulose ester
- C08B3/28—Isolation of the cellulose ester by precipitation
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)
- Processes Of Treating Macromolecular Substances (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE522691A true BE522691A (en:Method) |
Family
ID=157877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE522691D BE522691A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE522691A (en:Method) |
-
0
- BE BE522691D patent/BE522691A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE1006589A3 (fr) | Procede et appareil pour produire un acide amine par fermentation. | |
| CA2402803C (fr) | Procede d'obtention directe du peroxyde d'hydrogene | |
| BE490746A (fr) | Procédé de fractionnement. | |
| FR3012139A1 (en:Method) | ||
| WO2021123203A1 (en) | Organic acid and thermal treatment of purified 2,5-furandicarboxylic acid | |
| CA1340041C (fr) | Procede de preparation du chlorure ferrique a partir d'acide chlorhydrique dilue | |
| BE522691A (en:Method) | ||
| EP0008548B1 (fr) | Nouveau procédé de préparation du disulfure de benzothiazyle | |
| FR2946646A1 (fr) | Procede de production de cristaux d'acide adipique | |
| FR2583431A1 (fr) | Procede d'hydrolyse de graisse ou d'huile | |
| CH313374A (fr) | Procédé pour la précipitation en continu de composés organiques, notamment des esters de cellulose et appareillage pour la mise en oeuvre de ce procédé | |
| US3928434A (en) | Oxidative removal of impurities from acetic acid | |
| CH622766A5 (en) | Process for the preparation of terephthalic acid | |
| EP0056117B1 (fr) | Procédé de traitement d'un liquide | |
| Masyithah et al. | Optimization of a two-step method to synthesize azelaic acid from oleic acid | |
| FR2475929A1 (fr) | Element d'installation diffuseur-melangeur, et procede pour realiser et intensifier les processus de transfert de chaleur et/ou de matiere entre des phases liquide-liquide ainsi qu'entre des phases liquide-solide | |
| CH650007A5 (fr) | Procede de purification de nitrocellulose. | |
| BE886082R (fr) | Procede pour enlever les impuretes azotees d'un melange d'hydrocarbures | |
| CA1097833A (fr) | Liant pour peinture et vernis a base de butyral polyvinylique | |
| FR3081859A1 (fr) | Methode et installation de traitement d'un effluent industriel charge en aluminium a l'aide de co2 | |
| BE842679A (fr) | Procede de preparation de nitrate d'argent | |
| CA1267772A (fr) | Procede de fabrication de particules spheriques de composes de metaux du group ii | |
| FR2818649A1 (fr) | Procede de preparation de latex | |
| BE633865A (en:Method) | ||
| EP0091369B1 (fr) | Procédé et installation de préparation de caséinates acides |