AU580326B2 - Apparatus and method of continuous-process crystallization - Google Patents
Apparatus and method of continuous-process crystallizationInfo
- Publication number
- AU580326B2 AU580326B2 AU46467/85A AU4646785A AU580326B2 AU 580326 B2 AU580326 B2 AU 580326B2 AU 46467/85 A AU46467/85 A AU 46467/85A AU 4646785 A AU4646785 A AU 4646785A AU 580326 B2 AU580326 B2 AU 580326B2
- Authority
- AU
- Australia
- Prior art keywords
- mixture
- process path
- along
- liquor
- crystallization
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title abstract 8
- 238000002425 crystallisation Methods 0.000 title abstract 3
- 230000008025 crystallization Effects 0.000 title abstract 3
- 238000010924 continuous production Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 abstract 6
- 239000013078 crystal Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 1
- 239000012452 mother liquor 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
- 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
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0063—Control or regulation
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Saccharide Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Removal Of Specific Substances (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- General Preparation And Processing Of Foods (AREA)
- Enzymes And Modification Thereof (AREA)
Abstract
1. Method of continuous-process crystallization, in which a mixture of crystals surrounded by mother liquor is urged along a process path (C1, C2) through a reactor, feeding liquor is supplied to the mixture throughout the process path, said feeding liquor providing the nourishment required for crystal growth, and the mixture is brought to a boil with the help of a heating surface in order to bring about a concentration of the mixture diluted by the feeding liquor, characterized in that stirring of the mixture is intensified along the process path (C1, C2) in order to keep the specific rate of crystallization to a substantially constant optimum value over most of the process path (C1, C2), said intensifying of the stirring being obtained by modifying the mixture boiling rate by an increase of the heating surface (15) along the process path (C1, C2), said surface increase as well as the supply of matter following an exponential distribution as a function of the length of the process path inside the reactor, the exponent preferably ranging between 0.625 and 0.75.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8412977A FR2569130B1 (en) | 1984-08-20 | 1984-08-20 | CONTINUOUS CRYSTALLIZATION PROCESS AND DEVICE, ESPECIALLY SUCROSE |
| FR8412977 | 1984-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4646785A AU4646785A (en) | 1986-02-27 |
| AU580326B2 true AU580326B2 (en) | 1989-01-12 |
Family
ID=9307114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU46467/85A Ceased AU580326B2 (en) | 1984-08-20 | 1985-08-20 | Apparatus and method of continuous-process crystallization |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0176392B1 (en) |
| JP (1) | JPS6158599A (en) |
| AT (1) | ATE38162T1 (en) |
| AU (1) | AU580326B2 (en) |
| BR (1) | BR8503942A (en) |
| DE (1) | DE3565780D1 (en) |
| DK (1) | DK376885A (en) |
| ES (1) | ES8604781A1 (en) |
| FR (1) | FR2569130B1 (en) |
| IN (1) | IN164031B (en) |
| ZA (1) | ZA856305B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU645368B2 (en) * | 1990-11-28 | 1994-01-13 | Csr Limited | Process and apparatus for the crystallisation of sugar |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931543A (en) * | 1987-05-11 | 1990-06-05 | Cetus Corporation | Process for recovering microbially produced interleukin-2 |
| FR2922890B1 (en) * | 2007-10-30 | 2009-12-18 | Roquette Freres | METHOD FOR EVAPOCRYSTALLIZING MALTITOL. |
| CN118787979B (en) * | 2024-09-06 | 2024-11-29 | 上海中腾装备科技股份有限公司 | Continuous freezing crystallization device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1324801A (en) * | 1962-06-12 | 1963-04-19 | Sueddeutsche Zucker Ag | Process and installation for cooking and crystallizing sugar solutions |
| US3879215A (en) * | 1972-08-24 | 1975-04-22 | Hyesons Sugar Mills Limited | Compartmentalized vacuum pan for crystallization of sugar |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE259990C (en) * | ||||
| DE1567300B1 (en) * | 1961-04-07 | 1970-04-02 | Machinenfabrik Buckau R Wolf Ag | Cooking device for the continuous crystallization of syrup into sugar filling mass |
| FR1358472A (en) * | 1963-02-27 | 1964-04-17 | Fives Lille Cail | Continuous cooking appliance |
| CH483272A (en) * | 1967-05-02 | 1969-12-31 | Belge Atel Reunies | Baking device for continuous crystallization |
| FR1581088A (en) * | 1968-07-17 | 1969-09-12 | ||
| FR2142184A5 (en) * | 1971-06-16 | 1973-01-26 | Fives Lille Cail | |
| US4160812A (en) * | 1977-09-20 | 1979-07-10 | Texasgulf Inc. | Multi-stage crystallization of sodium carbonate |
| DE3120732A1 (en) * | 1981-05-25 | 1982-12-09 | Erich Prof. Dr. 3340 Wolfenbüttel Reinefeld | "METHOD AND DEVICE FOR CONTINUOUS EVAPORATION CRYSTALIZATION" |
| JPS5820277A (en) * | 1981-07-29 | 1983-02-05 | ヤンマー農機株式会社 | Oscillating sorter |
| JPH0228386B2 (en) * | 1981-07-30 | 1990-06-22 | Yanmaa Noki Kk | YODOSENBETSUKI |
-
1984
- 1984-08-20 FR FR8412977A patent/FR2569130B1/en not_active Expired
-
1985
- 1985-08-19 DE DE8585401655T patent/DE3565780D1/en not_active Expired
- 1985-08-19 EP EP85401655A patent/EP0176392B1/en not_active Expired
- 1985-08-19 DK DK376885A patent/DK376885A/en not_active Application Discontinuation
- 1985-08-19 AT AT85401655T patent/ATE38162T1/en not_active IP Right Cessation
- 1985-08-19 BR BR8503942A patent/BR8503942A/en not_active IP Right Cessation
- 1985-08-20 AU AU46467/85A patent/AU580326B2/en not_active Ceased
- 1985-08-20 ES ES546300A patent/ES8604781A1/en not_active Expired
- 1985-08-20 IN IN684/DEL/85A patent/IN164031B/en unknown
- 1985-08-20 ZA ZA856305A patent/ZA856305B/en unknown
- 1985-08-20 JP JP60181145A patent/JPS6158599A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1324801A (en) * | 1962-06-12 | 1963-04-19 | Sueddeutsche Zucker Ag | Process and installation for cooking and crystallizing sugar solutions |
| US3879215A (en) * | 1972-08-24 | 1975-04-22 | Hyesons Sugar Mills Limited | Compartmentalized vacuum pan for crystallization of sugar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU645368B2 (en) * | 1990-11-28 | 1994-01-13 | Csr Limited | Process and apparatus for the crystallisation of sugar |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE38162T1 (en) | 1988-11-15 |
| IN164031B (en) | 1988-12-31 |
| FR2569130A1 (en) | 1986-02-21 |
| ZA856305B (en) | 1986-04-30 |
| JPS6158599A (en) | 1986-03-25 |
| EP0176392A1 (en) | 1986-04-02 |
| DE3565780D1 (en) | 1988-12-01 |
| BR8503942A (en) | 1986-06-03 |
| DK376885D0 (en) | 1985-08-19 |
| ES8604781A1 (en) | 1986-03-01 |
| DK376885A (en) | 1986-02-21 |
| ES546300A0 (en) | 1986-03-01 |
| FR2569130B1 (en) | 1989-09-08 |
| AU4646785A (en) | 1986-02-27 |
| EP0176392B1 (en) | 1988-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |