JPS5782122A - Treatment of waste metal catalyst - Google Patents
Treatment of waste metal catalystInfo
- Publication number
- JPS5782122A JPS5782122A JP15728280A JP15728280A JPS5782122A JP S5782122 A JPS5782122 A JP S5782122A JP 15728280 A JP15728280 A JP 15728280A JP 15728280 A JP15728280 A JP 15728280A JP S5782122 A JPS5782122 A JP S5782122A
- Authority
- JP
- Japan
- Prior art keywords
- filtrate
- leached
- filtration
- adjusted
- separated
- 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
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To separate and to recover valuable metals in high yield, by leaching an oxidized and burnt waste catalyst containing Mo, V, Co, Ni, etc. with a mineral acid, precipitating the metals from the leached solution by 4 processes selectively.
CONSTITUTION: A waste catalyst containing valuable metals, e.g., Mo, V, Co, Ni, etc. is oxidized and burnt at about ≥750°C to give oxides and sulfides, which are leached with a mineral acid. Hydrogen sulfide gas is introduced into the leached solution, and Mo in the solution is precipitated and filtered. An alkali agent is added to the filtrate, which is adjusted to a pH of 4.5W5.5 and a precipitate containing V and Al is separated by filtration. An alkali agent is further added to the filtrate, which is adjusted to a pH of 8.5W9.5, and a precipitate containing Co and Ni is separated by filtration. An alkali agent is added to the filtrate separated by filtration, the filtrate is adjusted to a pH≥10, all the remaining valuable metals are precipitated, the precipitate is returned to the first process and leached with a mineral acid again.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15728280A JPS5782122A (en) | 1980-11-08 | 1980-11-08 | Treatment of waste metal catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15728280A JPS5782122A (en) | 1980-11-08 | 1980-11-08 | Treatment of waste metal catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782122A true JPS5782122A (en) | 1982-05-22 |
| JPS6362453B2 JPS6362453B2 (en) | 1988-12-02 |
Family
ID=15646249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15728280A Granted JPS5782122A (en) | 1980-11-08 | 1980-11-08 | Treatment of waste metal catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782122A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5084092A (en) * | 1987-08-21 | 1992-01-28 | The British Petroleum Company P.L.C. | Method of separating metals from catalyst material |
| CN108352553A (en) * | 2015-10-20 | 2018-07-31 | Le系统株式会社 | The manufacturing method of the V electrolyte of redox flow batteries |
-
1980
- 1980-11-08 JP JP15728280A patent/JPS5782122A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5084092A (en) * | 1987-08-21 | 1992-01-28 | The British Petroleum Company P.L.C. | Method of separating metals from catalyst material |
| CN108352553A (en) * | 2015-10-20 | 2018-07-31 | Le系统株式会社 | The manufacturing method of the V electrolyte of redox flow batteries |
| US20180237312A1 (en) * | 2015-10-20 | 2018-08-23 | Le System Co., Ltd. | Method of producing vanadium electrolytic solution for redox flow cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6362453B2 (en) | 1988-12-02 |
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