JPS57174105A - Concentrating method for aqueous solution of organic substance - Google Patents
Concentrating method for aqueous solution of organic substanceInfo
- Publication number
- JPS57174105A JPS57174105A JP5896781A JP5896781A JPS57174105A JP S57174105 A JPS57174105 A JP S57174105A JP 5896781 A JP5896781 A JP 5896781A JP 5896781 A JP5896781 A JP 5896781A JP S57174105 A JPS57174105 A JP S57174105A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- org
- water
- substance
- concd
- 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.)
- Pending
Links
Abstract
PURPOSE: To concentrate an org. substance without degrading permeability for water and excluding feasibility of the org. substance by concentrating a polution of the org. substance to above its solubility by using a reverse osmotic membrane, and returning the separated water to FST liquid.
CONSTITUTION: The aq. org. soln. of 50W350mol.wts. and 0.1W20g solubility in 100g water is supplied to an RO module 4 using a reverse osmotic membrane of ≥80% excluding rate of the org. substance from a fore stage 1 through a pump 3 under the conditions under which the flow speed of raw liquid on the membrane surface attains ≥30cm/sec, whereby it is separated to concd. liquid and permeated water. Permeated water 5 is flowed to discharge water as it is or reutilized. On the other hand, concd. water 6 is transferred into a separating tank 7, where it is separated to satd. liquid 9 and org. compds. 8. The liquid 9 is returned to a storage tank 2 for raw liquid. According to this method, the reconcn. stage for the concd. liquid is eliminated and this method is practicably, adoptable.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5896781A JPS57174105A (en) | 1981-04-17 | 1981-04-17 | Concentrating method for aqueous solution of organic substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5896781A JPS57174105A (en) | 1981-04-17 | 1981-04-17 | Concentrating method for aqueous solution of organic substance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57174105A true JPS57174105A (en) | 1982-10-26 |
Family
ID=13099608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5896781A Pending JPS57174105A (en) | 1981-04-17 | 1981-04-17 | Concentrating method for aqueous solution of organic substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57174105A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60197665A (en) * | 1984-03-21 | 1985-10-07 | Mitsui Toatsu Chem Inc | Production of olefin oxide |
-
1981
- 1981-04-17 JP JP5896781A patent/JPS57174105A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60197665A (en) * | 1984-03-21 | 1985-10-07 | Mitsui Toatsu Chem Inc | Production of olefin oxide |
JPH0461870B2 (en) * | 1984-03-21 | 1992-10-02 | Mitsui Toatsu Chemicals |
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