CN106906354A - A kind of enrichment method of rare-earth tailing rare earth elements - Google Patents
A kind of enrichment method of rare-earth tailing rare earth elements Download PDFInfo
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- CN106906354A CN106906354A CN201710129469.9A CN201710129469A CN106906354A CN 106906354 A CN106906354 A CN 106906354A CN 201710129469 A CN201710129469 A CN 201710129469A CN 106906354 A CN106906354 A CN 106906354A
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- rare
- earth
- tailing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
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- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a kind of enrichment method of rare-earth tailing rare earth elements.（1）To after 1/5 water that ball-milling medium volume is added in the middle of rare-earth tailing, ball milling 20 40 hours in the middle of ball mill device are put into.（2）By step（1）In the pug that obtains dried 0.5 2 hours at 105 DEG C, be dried dehydration,（3）By step（2）The rare-earth tailing for obtaining is sintered at 1,300 1500 DEG C, and insulation is cooled down after 0.5 2 hours；So that rare earth element is largely enriched in the mine tailing bottom after sintering.Extensively, process for producing is simple, cheap, is easy to industrialized production and does not produce any secondary pollution, there is relatively broad application prospect for raw material sources of the present invention.
Description
Technical field
The present invention relates to a kind of rare-earth tailing rare earth elements enrichment method.
Background technology
Rare earth is widely used in the middle of a series of industrial production due to its special physical and chemical performance, is had
The title of " industrial vitamin ".At present, rare earth has been widely used in permanent magnet, petroleum catalyst, optics and laser material, raw
In the middle of the numerous areas such as thing analysis and imaging technique.As the important strategic resource of a country, rare earth no matter in tradition or
Global extensive concern is all obtained in the middle of new high-tech industry.
It is well known that due to the closely related supply-demand relationship of rare earth resources, attention degree of the whole world for rare earth and day
It is all to increase.Therefore, contradiction uneven and between solution supply-demand relationship, numerous studies personnel are distributed in order to overcome rare earth resources serious
Actively seek feasible method to reclaim and recycle rare earth resources.The deficient country of many rare earth resources has to by work
The approach such as industry waste residue, rare-earth tailing carry out recycling to rare earth resources.So, for the research and development of rare earth resources recovery technology
It is extremely urgent.
In order to carry out recovery purification to rare earth element, researcher all over the world does a lot of work to this.It is all multi-party
Method comes forth, such as absorption method, hydrometallurgical, biosorption process, ion-exchange etc., numerous.Although substantial amounts of
Recovery technology is reported, but it is prevailing remain acid（Alkali）Molten method, but the method rare earth relatively low for grade
It is not satisfactory for raw material.Following problems will be caused（1）Acid（Alkali）A large amount of acid can be consumed in the middle of molten process（Alkali）, make
Significantly improved into cost；（2）For low grade material, organic efficiency is low;（3）Acid（Alkali）What is produced after molten is a large amount of
Waste liquid also will cause severe contamination to environment.
And the key issue of technology is on the premise of reduces cost, rare earth resources effectively to be reclaimed.With generation
Progressively attention of the various countries of boundary for ecological, environmental protective problem, if can be polluted to environment also can as a measurement technology method
The important index of row.Therefore, for low cost, the exploration of efficient and environmentally friendly rare earth resources recovery technology is extremely urgent.
The content of the invention
The purpose of the present invention is directed to above-mentioned problem there is provided a kind of enrichment side of rare-earth tailing rare earth elements
Method.
Concretely comprise the following steps：
（1）To after 1/5 water that ball-milling medium volume is added in the middle of rare-earth tailing, ball milling 20-40 in the middle of ball mill device is put into small
When.
（2）By step（1）In the pug that obtains dried at 105 DEG C 0.5-2 hours, be dried dehydration.
（3）By step（2）The rare-earth tailing for obtaining is sintered at 1300-1500 DEG C, cold after being incubated 0.5-2 hours
But.
Specific embodiment
Embodiment 1：
（1）To after 1/5 water that ball-milling medium volume is added in the middle of rare-earth tailing, ball milling 20 hours in the middle of ball mill device are put into.
（2）By step（1）In the pug that obtains dried 0.5 hour at 105 DEG C, be dried dehydration.
（3）By step（2）The rare-earth tailing for obtaining is sintered at 1300 DEG C, and insulation is cooled down after 2 hours.
The sintered product to rare-earth tailing carries out EDS power spectrum tests afterwards, finds under gravity, in rare-earth tailing
Rare earth ion there occurs obvious enrichment in the bottom of sintered product.
Embodiment 2：
（1）To after 1/5 water that ball-milling medium volume is added in the middle of rare-earth tailing, ball milling 40 hours in the middle of ball mill device are put into.
（2）By step（1）In the pug that obtains dried 2 hours at 105 DEG C, be dried dehydration.
（3）By step（2）The rare-earth tailing for obtaining is sintered at 1500 DEG C, and insulation is cooled down after 0.5 hour.
The sintered product to rare-earth tailing carries out EDS power spectrum tests afterwards, finds under gravity, in rare-earth tailing
Rare earth ion there occurs obvious enrichment in the bottom of sintered product.
Claims (1)
1. a kind of enrichment method of rare-earth tailing rare earth elements, it is characterised in that concretely comprise the following steps：
（1）To after 1/5 water that ball-milling medium volume is added in the middle of rare-earth tailing, ball milling 20-40 in the middle of ball mill device is put into small
When；
（2）By step（1）In the pug that obtains dried at 105 DEG C 0.5-2 hours, be dried dehydration；
（3）By step（2）The rare-earth tailing for obtaining is sintered at 1300-1500 DEG C, and insulation is cooled down after 0.5-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129469.9A CN106906354A (en) | 2017-03-06 | 2017-03-06 | A kind of enrichment method of rare-earth tailing rare earth elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129469.9A CN106906354A (en) | 2017-03-06 | 2017-03-06 | A kind of enrichment method of rare-earth tailing rare earth elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106906354A true CN106906354A (en) | 2017-06-30 |
Family
ID=59186797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710129469.9A Pending CN106906354A (en) | 2017-03-06 | 2017-03-06 | A kind of enrichment method of rare-earth tailing rare earth elements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906354A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024554A (en) * | 2007-02-12 | 2007-08-29 | 内蒙古科技大学 | Rear-earth-rich, niobium-rich and cand-rich rear sorted tail-ore microcrystal glass and mfg. method |
| CN102181643A (en) * | 2011-03-29 | 2011-09-14 | 内蒙古科技大学 | Method for extracting rare earth from rare earth tailings |
| CN102251117A (en) * | 2011-06-17 | 2011-11-23 | 金华冠华水晶有限公司 | Method for extracting rare earth component from crystal waste slag |
| JP2014148738A (en) * | 2013-02-01 | 2014-08-21 | Kankyo Joka Kenkyusho:Kk | Method of separating and recovering rare earth elements and acid from solution containing rare earth elements |
| CN104593608A (en) * | 2015-02-02 | 2015-05-06 | 上海第二工业大学 | Method for intensified leaching of rare earth metals from waste fluorescent powder by mechanical activation method |
-
2017
- 2017-03-06 CN CN201710129469.9A patent/CN106906354A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024554A (en) * | 2007-02-12 | 2007-08-29 | 内蒙古科技大学 | Rear-earth-rich, niobium-rich and cand-rich rear sorted tail-ore microcrystal glass and mfg. method |
| CN102181643A (en) * | 2011-03-29 | 2011-09-14 | 内蒙古科技大学 | Method for extracting rare earth from rare earth tailings |
| CN102251117A (en) * | 2011-06-17 | 2011-11-23 | 金华冠华水晶有限公司 | Method for extracting rare earth component from crystal waste slag |
| JP2014148738A (en) * | 2013-02-01 | 2014-08-21 | Kankyo Joka Kenkyusho:Kk | Method of separating and recovering rare earth elements and acid from solution containing rare earth elements |
| CN104593608A (en) * | 2015-02-02 | 2015-05-06 | 上海第二工业大学 | Method for intensified leaching of rare earth metals from waste fluorescent powder by mechanical activation method |
Non-Patent Citations (3)
| Title |
|---|
| 张光伟 等: ""我国稀土尾矿资源的综合回收利用现状及展望"", 《矿业研究与开发》 * |
| 张巍: ""西南某稀土尾矿选矿预富集工艺试验"", 《现代矿业》 * |
| 牟宝喜 主编: "《钢铁企业风险与风险管理》", 31 December 2008, 冶金工业出版社 * |
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Application publication date: 20170630 |
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| RJ01 | Rejection of invention patent application after publication |