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Method for electrolytically refining lead in sulfamate bath
US2016160369A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016160369-A1 |
| Application number | US-201514957370-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 2, 2015 |
| Priority date | Dec 3, 2014 |
| Publication date | Jun 9, 2016 |
| Grant date | — |
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Abstract
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In the electrolytic refining of lead in a sulfamate bath, the production of a white residue is suppressed, and a decrease in the lead concentration in the electrolytic solution is suppressed. A method for electrolytically refining lead in a sulfamate bath, comprising performing electrolytic refining at a decomposition rate of sulfamic acid controlled at 0.06%/day or less.
First claim
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1 . A method for electrolytically refining lead in a sulfamate bath using a lead anode, comprising performing electrolytic refining at a decomposition rate of sulfamic acid controlled at 0.06%/day or less. 2 . The method for electrolytically refining lead in a sulfamate bath according to claim 1 , wherein electrolytic refining is performed with sulfamic acid concentration in a sulfamate bath adjusted to a concentration 20 to 60 g/L higher than lead concentration in the sulfamate bath. 3 . The method for electrolytically refining lead in a sulfamate bath according to claim 1 , wherein electrolytic refining is performed with electrolytic solution temperature in the sulfamate bath adjusted to 15 to 30° C. 4 . The method for electrolytically refining lead in a sulfamate bath according to claim 2 , wherein electrolytic refining is performed with electrolytic solution temperature in the sulfamate bath adjusted to 15 to 30° C.
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- What does patent US2016160369A1 cover?
- In the electrolytic refining of lead in a sulfamate bath, the production of a white residue is suppressed, and a decrease in the lead concentration in the electrolytic solution is suppressed. A method for electrolytically refining lead in a sulfamate bath, comprising performing electrolytic refining at a decomposition rate of sulfamic acid controlled at 0.06%/day or less.
- Who is the assignee on this patent?
- Jx Nippon Mining & Metals Corp
- What technology area does this patent fall under?
- Primary CPC classification C25C7/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 09 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).