GB1443632A - Minimizing fine crystals in continuous crystallization-by-cooling process - Google Patents
Minimizing fine crystals in continuous crystallization-by-cooling processInfo
- Publication number
- GB1443632A GB1443632A GB3860074A GB3860074A GB1443632A GB 1443632 A GB1443632 A GB 1443632A GB 3860074 A GB3860074 A GB 3860074A GB 3860074 A GB3860074 A GB 3860074A GB 1443632 A GB1443632 A GB 1443632A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- stream
- crystalliser
- pressure
- conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001816 cooling Methods 0.000 title abstract 2
- 239000013078 crystal Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000002904 solvent Substances 0.000 abstract 11
- 230000002706 hydrostatic effect Effects 0.000 abstract 6
- 238000002425 crystallisation Methods 0.000 abstract 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 238000001704 evaporation Methods 0.000 abstract 3
- 230000008020 evaporation Effects 0.000 abstract 3
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010899 nucleation Methods 0.000 abstract 1
- 230000006911 nucleation Effects 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0022—Evaporation of components of the mixture to be separated by reducing pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39811973A | 1973-09-17 | 1973-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1443632A true GB1443632A (en) | 1976-07-21 |
Family
ID=23574060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3860074A Expired GB1443632A (en) | 1973-09-17 | 1974-09-04 | Minimizing fine crystals in continuous crystallization-by-cooling process |
Country Status (25)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152833A (en) * | 1981-03-23 | 1985-08-14 | Rau Lebensmittelwerke | Apparatus for crystallizing a substance from a solution |
| CN110975314A (zh) * | 2019-11-25 | 2020-04-10 | 湖南恒光科技股份有限公司 | 一种氯酸钠结晶蒸发水闭式循环工艺系统及方法 |
| CN116832474A (zh) * | 2023-05-16 | 2023-10-03 | 南通三圣石墨设备科技股份有限公司 | 一种晶体粒度严格受控的结晶方法和专用装置 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005048881A1 (de) * | 2005-10-12 | 2007-04-19 | Forschungszentrum Karlsruhe Gmbh | Verfahren zur Lösungskristallisation von Stoffgemischen |
| CN111514605A (zh) * | 2020-04-23 | 2020-08-11 | 江西赣锋锂业股份有限公司 | 一种间接冷凝真空冷冻结晶器 |
| WO2022255366A1 (ja) * | 2021-06-02 | 2022-12-08 | 株式会社日本触媒 | 精製装置に用いられる槽 |
| CN114288694B (zh) * | 2021-12-31 | 2023-04-07 | 天津农学院 | 高纯碳酸锂的闪蒸汽压缩式连续结晶系统及工艺 |
-
1974
- 1974-01-01 AR AR255493A patent/AR204539A1/es active
- 1974-08-15 NL NL7410956A patent/NL7410956A/xx not_active Application Discontinuation
- 1974-09-04 HU HU74HE00000662A patent/HU171447B/hu unknown
- 1974-09-04 FI FI2581/74A patent/FI258174A7/fi unknown
- 1974-09-04 GB GB3860074A patent/GB1443632A/en not_active Expired
- 1974-09-05 CA CA208,574A patent/CA1021253A/en not_active Expired
- 1974-09-06 JP JP10287274A patent/JPS544943B2/ja not_active Expired
- 1974-09-07 DE DE2442934A patent/DE2442934A1/de active Pending
- 1974-09-10 IE IE1884/74A patent/IE39890B1/xx unknown
- 1974-09-11 CH CH1263574A patent/CH596865A5/xx not_active IP Right Cessation
- 1974-09-11 BE BE148402A patent/BE819779A/xx unknown
- 1974-09-12 NO NO743279A patent/NO743279L/no unknown
- 1974-09-12 TR TR18366A patent/TR18366A/xx unknown
- 1974-09-12 RO RO7479961A patent/RO64603A/ro unknown
- 1974-09-12 FR FR7430827A patent/FR2243714A1/fr not_active Withdrawn
- 1974-09-14 EG EG383/74A patent/EG11307A/xx active
- 1974-09-16 AU AU73345/74A patent/AU7334574A/en not_active Expired
- 1974-09-16 LU LU70909A patent/LU70909A1/xx unknown
- 1974-09-16 BR BR7702/74A patent/BR7407702D0/pt unknown
- 1974-09-16 IT IT27322/74A patent/IT1021413B/it active
- 1974-09-16 ES ES430110A patent/ES430110A1/es not_active Expired
- 1974-09-17 ZA ZA00745889A patent/ZA745889B/xx unknown
- 1974-09-17 PL PL1974174151A patent/PL95238B1/pl unknown
- 1974-09-17 DD DD181162A patent/DD114003A5/xx unknown
-
1977
- 1977-12-30 MY MY221/77A patent/MY7700221A/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152833A (en) * | 1981-03-23 | 1985-08-14 | Rau Lebensmittelwerke | Apparatus for crystallizing a substance from a solution |
| CN110975314A (zh) * | 2019-11-25 | 2020-04-10 | 湖南恒光科技股份有限公司 | 一种氯酸钠结晶蒸发水闭式循环工艺系统及方法 |
| CN116832474A (zh) * | 2023-05-16 | 2023-10-03 | 南通三圣石墨设备科技股份有限公司 | 一种晶体粒度严格受控的结晶方法和专用装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| MY7700221A (en) | 1977-12-31 |
| JPS5056372A (enrdf_load_stackoverflow) | 1975-05-17 |
| DE2442934A1 (de) | 1975-03-20 |
| CH596865A5 (enrdf_load_stackoverflow) | 1978-03-31 |
| FI258174A7 (enrdf_load_stackoverflow) | 1975-03-18 |
| IT1021413B (it) | 1978-01-30 |
| LU70909A1 (enrdf_load_stackoverflow) | 1975-01-02 |
| CA1021253A (en) | 1977-11-22 |
| TR18366A (tr) | 1977-05-01 |
| FR2243714A1 (enrdf_load_stackoverflow) | 1975-04-11 |
| RO64603A (fr) | 1979-05-15 |
| IE39890B1 (en) | 1979-01-17 |
| HU171447B (hu) | 1978-01-28 |
| NO743279L (enrdf_load_stackoverflow) | 1975-04-14 |
| ES430110A1 (es) | 1977-02-16 |
| DD114003A5 (enrdf_load_stackoverflow) | 1975-07-12 |
| NL7410956A (nl) | 1975-03-19 |
| BR7407702D0 (pt) | 1975-07-29 |
| ZA745889B (en) | 1975-09-24 |
| PL95238B1 (enrdf_load_stackoverflow) | 1977-09-30 |
| AR204539A1 (es) | 1976-02-12 |
| AU7334574A (en) | 1976-03-18 |
| BE819779A (fr) | 1974-12-31 |
| EG11307A (en) | 1977-02-28 |
| JPS544943B2 (enrdf_load_stackoverflow) | 1979-03-12 |
| IE39890L (en) | 1975-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |