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 (OSRAM) |
Family
ID=157877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE522691D BE522691A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE522691A (OSRAM) |
-
0
- BE BE522691D patent/BE522691A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2402803C (fr) | Procede d'obtention directe du peroxyde d'hydrogene | |
| EP2193114B1 (fr) | Procede de fabrication d'amines par hydrogenation de composes nitriles | |
| CN103237814B (zh) | 一种用于纤维素衍生化的方法 | |
| BE490746A (fr) | Procédé de fractionnement. | |
| CA1340041C (fr) | Procede de preparation du chlorure ferrique a partir d'acide chlorhydrique dilue | |
| BE522691A (OSRAM) | ||
| EP0008548A1 (fr) | Nouveau procédé de préparation du disulfure de benzothiazyle | |
| FR2624881A1 (fr) | Procede de traitement des minerais, en particulier pour l'extraction du tungstene, tungstene et articles en tungstene obtenus a l'aide de ce procede | |
| 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 | |
| CN109761800B (zh) | 乙醛酸生产过程中连续结晶脱除草酸的方法 | |
| FR2478626A1 (fr) | Procede catalytique continu d'oxydation en phase liquide de butane en acide acetique | |
| EP0056117B1 (fr) | Procédé de traitement d'un liquide | |
| 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 | |
| RU2773848C1 (ru) | Способ очистки внутренней поверхности резервуара | |
| FR3081859A1 (fr) | Methode et installation de traitement d'un effluent industriel charge en aluminium a l'aide de co2 | |
| FR2818649A1 (fr) | Procede de preparation de latex | |
| BE633865A (OSRAM) | ||
| FR2668466A1 (fr) | Procede d'hydrolysation de chlorures de metaux du groupe ivb. | |
| CN116200233A (zh) | 一种葡萄汁悬浮澄清方法 | |
| CN120966570A (zh) | 一种聚丙烯酰胺乳液反应釜清洗剂及其制备方法和应用 | |
| BE535876A (OSRAM) | ||
| CH265518A (fr) | Procédé pour la préparation de dispersions aqueuses de polymères. | |
| CH312185A (fr) | Procédé pour la fabrication en continu d'esters de la cellulose. |