JPS5457473A - Removing method for chromium - Google Patents
Removing method for chromiumInfo
- Publication number
- JPS5457473A JPS5457473A JP12469477A JP12469477A JPS5457473A JP S5457473 A JPS5457473 A JP S5457473A JP 12469477 A JP12469477 A JP 12469477A JP 12469477 A JP12469477 A JP 12469477A JP S5457473 A JPS5457473 A JP S5457473A
- Authority
- JP
- Japan
- Prior art keywords
- chromium
- acid
- org
- exchange resin
- cation exchange
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE:To remove chromium containd in an aq. org. acid soln. contg. org. acid of a concn. not higher than 95% rapidly and efficiently, by treating the chromium with cation exchange resin at a specific temp. or higher. CONSTITUTION:An aq. soln. of an org. acid (e.g., acetic acid) of a concn. not higher than 95%, pref. not higher than 85%, contg. chromium (e.g., chromium acetate) is brought into contact with a cation exchange resin (e.g., strongly acidic cation exchange resin ) so as to adsorb and remove chromium. The contact is carried out at 55 deg.C or higher, pref. 70 deg.C or higher, thereby, exchange rate for chromium ion is increased remarkably, at the same time, exchanging amount is increased and chromium-removing effect is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52124694A JPS5814820B2 (en) | 1977-10-18 | 1977-10-18 | How to remove chromium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52124694A JPS5814820B2 (en) | 1977-10-18 | 1977-10-18 | How to remove chromium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5457473A true JPS5457473A (en) | 1979-05-09 |
JPS5814820B2 JPS5814820B2 (en) | 1983-03-22 |
Family
ID=14891768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52124694A Expired JPS5814820B2 (en) | 1977-10-18 | 1977-10-18 | How to remove chromium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5814820B2 (en) |
-
1977
- 1977-10-18 JP JP52124694A patent/JPS5814820B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5814820B2 (en) | 1983-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A313 | Final decision of rejection without a dissenting response from the applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A313 Effective date: 20031125 |
|
A02 | Decision of refusal |
Effective date: 20031216 Free format text: JAPANESE INTERMEDIATE CODE: A02 |