CN1932054A - Process of extracting RE-Ni-Co alloy from waste hydrogen-storing RE alloy - Google Patents
Process of extracting RE-Ni-Co alloy from waste hydrogen-storing RE alloy Download PDFInfo
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- CN1932054A CN1932054A CN 200610136422 CN200610136422A CN1932054A CN 1932054 A CN1932054 A CN 1932054A CN 200610136422 CN200610136422 CN 200610136422 CN 200610136422 A CN200610136422 A CN 200610136422A CN 1932054 A CN1932054 A CN 1932054A
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Abstract
The present invention relates to technological process of extracting RE-Ni-Co alloy from waste hydrogen storing RE alloy, is especially technological process of recovering and utilizing alloy from waste produced in preparing Ni/MH cell negative pole material, and belongs to the field of metallurgy technology. The technological process includes smelting waste hydrogen storing alloy powder in a medium frequency induction furnace at 1600-2000 deg.c and casting to form. The technological process is simple, and has no environmental pollution, high alloy element recovering rate and low cost.
Description
One, technical field
The present invention relates to a kind of technology of from useless rare earth hydrogen storage alloy, extracting the rare earth nickel cobalt (alloy), particularly relate to and utilize the reclamation of waste materials extraction process that is produced in the preparation Ni/MH nickel-hydrogen battery negative pole material process, belong to field of metallurgy.
Two, background technology
For how to recycle useless rare earth hydrogen storage alloy (powder) effectively, have only Germany and Japan and other countries these to be done research abroad, but great majority adopt complicated chemical technology such as acid-alkali treatment, extraction and back extraction, complex process, recovery cost height.Domestic have only a few family units such as Nankai University that some researchs were done in the regeneration of the rare earth hydrogen storage alloy powder in the waste nickel-hydrogen battery, shortcomings such as they are to adopt vacuum induction melting, and this technology exists can not continuous charging, slag is stirred, changes in inconvenience and production efficiency is low.And do not do research for how recycling the higher waste material of foreign matter content that is produced in the hydrogen storing alloy powder preparation process.
Three, summary of the invention
The object of the present invention is to provide a kind of a kind of smelting technology that from useless rare earth hydrogen storage alloy, extracts the rare earth nickel cobalt (alloy) that can make production carry out, increase substantially recovery rate of iron and production efficiency continuously.
The present invention realizes in the following manner: with useless rare earth hydrogen storage alloy or powder is raw material, melting in medium-frequency induction furnace, and smelting temperature is 1600～2000 ℃, comes out of the stove, casting.
The alloy main component that extracts is: Ni 65-70%, Co 10-12%, Al 3-5%, Mn 2-4%, RE 10-15%, Ti 1-2%.
Technology of the present invention is owing to adopt medium-frequency induction furnace to smelt, advantages of simple technological process, and non-environmental-pollution, alloying element recovery utilization rate height, cost is low, not only protects environment but also save a large amount of noble metal element resources.
Four, embodiment
The present invention is a raw material with useless rare earth hydrogen storage alloy (powder); adopt the melting of 500kg medium-frequency induction furnace, smelting temperature is 1600～2000 ℃, smelting time: 1-2.5 hour; in the fusion process; after useless rare earth hydrogen storage alloy (powder) fusing, skim, again continuous charging; get rid of oxide compound and other various impurity of carrying secretly in the useless rare earth hydrogen storage alloy (powder) by forming slag; melting is skimmed after finishing, and comes out of the stove, and adopts pig mold or vacuum expendable pattern mould to carry out casting.By the alloy that extracted will be directly as smelting rare earth hydrogen storage alloy with starting material or other purposes, its alloy main component is: Ni 65-70%, Co 10-12%, Al 3-5%, Mn 2-4%, RE 10-15%, Ti 1-2%.
Claims (2)
1, from useless rare earth hydrogen storage alloy, extracts the technology of rare earth nickel cobalt (alloy); it is characterized in that: with useless rare earth hydrogen storage alloy or powder is raw material, melting in medium-frequency induction furnace, and smelting temperature is 1600～2000 ℃; smelting time: 1-2.5 hour; in the fusion process, after useless rare earth hydrogen storage alloy or the powder fusing, skim; continuous charging again; melting is skimmed after finishing again, comes out of the stove, and adopts pig mold or vacuum expendable pattern mould to carry out casting.
2, the rare earth nickel cobalt (alloy) technology of extracting from useless rare earth hydrogen storage alloy according to claim 1, it is characterized in that: the alloy main component that extracts is: Ni 65-70%, Co 10-12%, Al 3-5%, Mn 2-4%, RE 10-15%, Ti 1-2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610136422 CN1932054A (en) | 2006-10-21 | 2006-10-21 | Process of extracting RE-Ni-Co alloy from waste hydrogen-storing RE alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610136422 CN1932054A (en) | 2006-10-21 | 2006-10-21 | Process of extracting RE-Ni-Co alloy from waste hydrogen-storing RE alloy |
Publications (1)
| Publication Number | Publication Date |
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| CN1932054A true CN1932054A (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610136422 Pending CN1932054A (en) | 2006-10-21 | 2006-10-21 | Process of extracting RE-Ni-Co alloy from waste hydrogen-storing RE alloy |
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| CN (1) | CN1932054A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181646A (en) * | 2011-04-08 | 2011-09-14 | 内蒙古科技大学 | Comprehensive recycle and utilization method based on selective oxidation/ reduction rare earth nickel-metal hydride battery waste |
| CN102876898A (en) * | 2012-09-27 | 2013-01-16 | 江西稀有稀土金属钨业集团有限公司 | Method and system for treatment of return scraps produced from rare-earth hydrogen storage alloy smelting process |
| CN103194628A (en) * | 2013-04-24 | 2013-07-10 | 四川三洲川化机核能设备制造有限公司 | Melting method using oxidation method to remove hydrogen in nickel-based alloy |
| CN110819809A (en) * | 2019-11-18 | 2020-02-21 | 内蒙古科技大学 | Method for recovering waste hydrogen storage alloy powder |
-
2006
- 2006-10-21 CN CN 200610136422 patent/CN1932054A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181646A (en) * | 2011-04-08 | 2011-09-14 | 内蒙古科技大学 | Comprehensive recycle and utilization method based on selective oxidation/ reduction rare earth nickel-metal hydride battery waste |
| CN102876898A (en) * | 2012-09-27 | 2013-01-16 | 江西稀有稀土金属钨业集团有限公司 | Method and system for treatment of return scraps produced from rare-earth hydrogen storage alloy smelting process |
| CN103194628A (en) * | 2013-04-24 | 2013-07-10 | 四川三洲川化机核能设备制造有限公司 | Melting method using oxidation method to remove hydrogen in nickel-based alloy |
| CN110819809A (en) * | 2019-11-18 | 2020-02-21 | 内蒙古科技大学 | Method for recovering waste hydrogen storage alloy powder |
| CN110819809B (en) * | 2019-11-18 | 2021-08-27 | 内蒙古科技大学 | Method for recovering waste hydrogen storage alloy powder |
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