JPS5544382A - Concentrating method for aqueous solution by refrigeration treatment - Google Patents
Concentrating method for aqueous solution by refrigeration treatmentInfo
- Publication number
- JPS5544382A JPS5544382A JP11902278A JP11902278A JPS5544382A JP S5544382 A JPS5544382 A JP S5544382A JP 11902278 A JP11902278 A JP 11902278A JP 11902278 A JP11902278 A JP 11902278A JP S5544382 A JPS5544382 A JP S5544382A
- Authority
- JP
- Japan
- Prior art keywords
- ice
- aqueous solution
- mother liquor
- solution
- sent
- 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.)
- Granted
Links
Landscapes
- Physical Water Treatments (AREA)
Abstract
PURPOSE: To improve the heat transmission velocity, and to make the solute dissolved in the aqueous solution possible to be efficiently removed or concentrated, by supercooling the aqueous solution including the solute to temperatures lower than the freezing point by means of the indirect heat exchanging method, and then, by precipitating the ice depending on the method excluding above method.
CONSTITUTION: The aqueous solution to be treated is sent from the line 11 into the cooling process, in which the solution is supercooled by the indirect cooling method using the brine, etc.; and then, the solution is sent to the ice precipitation process 2 in which the supercooled state is broken by adding the seed crystal, etc., and the ice is precipitated. The concentrated mother liquor is discharged through the line 16 or is recycled, if necessary. Next, the solution is sent to the process 3 in which the ice is separated from the mother liquor, and the mother liquor sticking on the ice is washed away, by the centrifuge, etc., and thus separated mother liquor is recycled through the line 17. The ice is molten in the process 4. According to this method, the contamination of the cooling medium and the object to be cooled, like as in the conventional method (direct method), is excluded, and besides, the ice removing mechanism for the heat transmission surface is made unnecessary, and the heat transmission velocity can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11902278A JPS5944883B2 (en) | 1978-09-26 | 1978-09-26 | Method for concentrating aqueous solution by freezing treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11902278A JPS5944883B2 (en) | 1978-09-26 | 1978-09-26 | Method for concentrating aqueous solution by freezing treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5544382A true JPS5544382A (en) | 1980-03-28 |
| JPS5944883B2 JPS5944883B2 (en) | 1984-11-01 |
Family
ID=14751037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11902278A Expired JPS5944883B2 (en) | 1978-09-26 | 1978-09-26 | Method for concentrating aqueous solution by freezing treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5944883B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614981B1 (en) * | 1977-06-23 | 1981-04-07 | ||
| JPH0985231A (en) * | 1995-09-25 | 1997-03-31 | Masahiro Tezuka | Freezing disposal process for waste liquor |
| WO1997018879A1 (en) * | 1995-11-20 | 1997-05-29 | Unilever Plc | A process for supercooling |
-
1978
- 1978-09-26 JP JP11902278A patent/JPS5944883B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614981B1 (en) * | 1977-06-23 | 1981-04-07 | ||
| JPH0985231A (en) * | 1995-09-25 | 1997-03-31 | Masahiro Tezuka | Freezing disposal process for waste liquor |
| WO1997018879A1 (en) * | 1995-11-20 | 1997-05-29 | Unilever Plc | A process for supercooling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5944883B2 (en) | 1984-11-01 |
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