JPS54103786A - Purification of brine - Google Patents
Purification of brineInfo
- Publication number
- JPS54103786A JPS54103786A JP991278A JP991278A JPS54103786A JP S54103786 A JPS54103786 A JP S54103786A JP 991278 A JP991278 A JP 991278A JP 991278 A JP991278 A JP 991278A JP S54103786 A JPS54103786 A JP S54103786A
- Authority
- JP
- Japan
- Prior art keywords
- ion exchange
- exchange membrane
- brine
- membrane
- electrolysis
- 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
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
PURPOSE: In brine electrolysis using ion exchange membrane, returned brine including replenishment salt is made alkaline, the resulted precipitate is removed, and purification by ion exchange membrane is carried out. The process assures the removal of Ca ion and prevents the uprise of electrolysis voltage.
CONSTITUTION: In brine electrolysis using ion exchange membrane, returned brine is replenished with required NaCl and water, then added with caustic sode and soda ash, etc., to precipitate most of Ca, Mg, Fe and other heavy metals to be separated and removed. The filtrate is made alkaline, preferably with pH higher than 10, and passed through an ion exchange membrane having micro pores, then supplied into electrolytic bath. The microporous ion exchange membrane is, preferably a high molecular member having perfluorocarbon principal chain and effective exchange groups such as cationic exchange group of carboxylic or sulphonic groups as well as calcium chelate forming group such as imino diacetic acid group. These membrane had generally a permeability of 0.2m3/m2/hr or greater, or preferably 50m3/m2/hr or less, at a pressure of 1 m water head.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP991278A JPS54103786A (en) | 1978-02-02 | 1978-02-02 | Purification of brine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP991278A JPS54103786A (en) | 1978-02-02 | 1978-02-02 | Purification of brine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54103786A true JPS54103786A (en) | 1979-08-15 |
JPS627277B2 JPS627277B2 (en) | 1987-02-16 |
Family
ID=11733308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP991278A Granted JPS54103786A (en) | 1978-02-02 | 1978-02-02 | Purification of brine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54103786A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4483754A (en) * | 1983-03-04 | 1984-11-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Electrolysis of sodium chloride with the use of ion exchange membranes |
JP2010275579A (en) * | 2009-05-27 | 2010-12-09 | Chlorine Eng Corp Ltd | Method for producing sodium hydroxide |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5186100A (en) * | 1975-01-25 | 1976-07-28 | Asahi Chemical Ind | ENSUINO DENKAIHOHO |
JPS5215833A (en) * | 1975-07-23 | 1977-02-05 | Hodogaya Chem Co Ltd | Process for purifying salt water |
JPS533998A (en) * | 1976-07-01 | 1978-01-14 | Unitika Ltd | Purification of alkali brine for electrolysis |
-
1978
- 1978-02-02 JP JP991278A patent/JPS54103786A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5186100A (en) * | 1975-01-25 | 1976-07-28 | Asahi Chemical Ind | ENSUINO DENKAIHOHO |
JPS5215833A (en) * | 1975-07-23 | 1977-02-05 | Hodogaya Chem Co Ltd | Process for purifying salt water |
JPS533998A (en) * | 1976-07-01 | 1978-01-14 | Unitika Ltd | Purification of alkali brine for electrolysis |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4483754A (en) * | 1983-03-04 | 1984-11-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Electrolysis of sodium chloride with the use of ion exchange membranes |
JP2010275579A (en) * | 2009-05-27 | 2010-12-09 | Chlorine Eng Corp Ltd | Method for producing sodium hydroxide |
Also Published As
Publication number | Publication date |
---|---|
JPS627277B2 (en) | 1987-02-16 |
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