JPS563633A - Recovering method for rhodium from rhodium plating waste liquor - Google Patents
Recovering method for rhodium from rhodium plating waste liquorInfo
- Publication number
- JPS563633A JPS563633A JP8060679A JP8060679A JPS563633A JP S563633 A JPS563633 A JP S563633A JP 8060679 A JP8060679 A JP 8060679A JP 8060679 A JP8060679 A JP 8060679A JP S563633 A JPS563633 A JP S563633A
- Authority
- JP
- Japan
- Prior art keywords
- rhodium
- liquor
- waste liquor
- hydrogen
- acid
- 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 separate and recover Rh from Rh plating waste liquor in a high yield by making the liquor strongly acidic with an acid, adding iron dust to generate hydrogen, and reducing Rh with this hydrogen to precipitate rhodium black.
CONSTITUTION: Waste liquor of electroless Rh plating is adjusted to a strongly acidic range of pH ≤0.1 with an acid such as concd. hydrochloric acid. After adding electrolytic iron dust to generate hydrogen the liquor is allowed to stand. The generated hydrogen acts as a reducing agent to reduce Rh compounds in the liquor, thus precipitating black so-called rhodium black. By filtering and drying the precipitate, Rh in the waste liquor is separated from other substances and recovered in a high yield of 99% or more.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8060679A JPS563633A (en) | 1979-06-26 | 1979-06-26 | Recovering method for rhodium from rhodium plating waste liquor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8060679A JPS563633A (en) | 1979-06-26 | 1979-06-26 | Recovering method for rhodium from rhodium plating waste liquor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS563633A true JPS563633A (en) | 1981-01-14 |
Family
ID=13722982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8060679A Pending JPS563633A (en) | 1979-06-26 | 1979-06-26 | Recovering method for rhodium from rhodium plating waste liquor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS563633A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5451847A (en) * | 1977-09-30 | 1979-04-24 | Ricoh Co Ltd | Direct recorder |
CN105483388A (en) * | 2015-12-11 | 2016-04-13 | 励福(江门)环保科技股份有限公司 | Method for gathering noble metal mud in noble-metal-containing acid waste liquid |
JP2018510966A (en) * | 2015-03-05 | 2018-04-19 | ヘレウス ドイチェラント ゲーエムベーハー ウント カンパニー カーゲー | Method for producing elemental rhodium |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212619A (en) * | 1975-07-21 | 1977-01-31 | Nissan Motor Co Ltd | Process for recovering pr group elements from waste pt catalyst |
-
1979
- 1979-06-26 JP JP8060679A patent/JPS563633A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212619A (en) * | 1975-07-21 | 1977-01-31 | Nissan Motor Co Ltd | Process for recovering pr group elements from waste pt catalyst |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5451847A (en) * | 1977-09-30 | 1979-04-24 | Ricoh Co Ltd | Direct recorder |
JP2018510966A (en) * | 2015-03-05 | 2018-04-19 | ヘレウス ドイチェラント ゲーエムベーハー ウント カンパニー カーゲー | Method for producing elemental rhodium |
CN105483388A (en) * | 2015-12-11 | 2016-04-13 | 励福(江门)环保科技股份有限公司 | Method for gathering noble metal mud in noble-metal-containing acid waste liquid |
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