JPS5751101A - Preparation of aqueous solution of purified alkali metal chloride - Google Patents
Preparation of aqueous solution of purified alkali metal chlorideInfo
- Publication number
- JPS5751101A JPS5751101A JP12464280A JP12464280A JPS5751101A JP S5751101 A JPS5751101 A JP S5751101A JP 12464280 A JP12464280 A JP 12464280A JP 12464280 A JP12464280 A JP 12464280A JP S5751101 A JPS5751101 A JP S5751101A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- alkali metal
- metal chloride
- alkali
- preparation
- 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
- Catalysts (AREA)
Abstract
PURPOSE: To obtain an aqueous solution of purified alkali metal chloride having low COD, by contacting an aqueous solution of crude alkali metal chloride obtained as a by-product of the dehydrochlorination process of 1,1,2-trichloroethane, with a solution of an alkali hypochlorite in the presence of nickel oxide.
CONSTITUTION: In the preparation of vinylidene chloride by the reaction of 1,1,2- trichlorolethane with a caustic alkali (e.g. caustic soda), the aqueous solution of alkali metal chloride obtained as a by-product is mixed with an aqueous solution of nickel oxide (Ni2O3, NiO2) and an aqueous solution of an alkali hypochlorite, and the mixture is stirred at room temp. W about 80°C for several min W several hours. The amount of the nickel oxide added to the solution is ≥ about 1g per 100ml of the aqueous solution of alkali metal chloride. A purified aqueous solution of alkali metal chloride having a COD concentration of ≤ about 15ppm can be prepared extremely easily by the process.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12464280A JPS5751101A (en) | 1980-09-10 | 1980-09-10 | Preparation of aqueous solution of purified alkali metal chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12464280A JPS5751101A (en) | 1980-09-10 | 1980-09-10 | Preparation of aqueous solution of purified alkali metal chloride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5751101A true JPS5751101A (en) | 1982-03-25 |
JPS6313933B2 JPS6313933B2 (en) | 1988-03-28 |
Family
ID=14890453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12464280A Granted JPS5751101A (en) | 1980-09-10 | 1980-09-10 | Preparation of aqueous solution of purified alkali metal chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5751101A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001247989A (en) * | 2000-03-08 | 2001-09-14 | Asahi Kasei Corp | Method for electrolyzing alkali chloride |
JP2002029737A (en) * | 2000-05-08 | 2002-01-29 | Tosoh Corp | Method for purifying inorganic salt containing organic matter and purified salt for electrolysis of common salt |
-
1980
- 1980-09-10 JP JP12464280A patent/JPS5751101A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001247989A (en) * | 2000-03-08 | 2001-09-14 | Asahi Kasei Corp | Method for electrolyzing alkali chloride |
JP2002029737A (en) * | 2000-05-08 | 2002-01-29 | Tosoh Corp | Method for purifying inorganic salt containing organic matter and purified salt for electrolysis of common salt |
Also Published As
Publication number | Publication date |
---|---|
JPS6313933B2 (en) | 1988-03-28 |
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