CN101643850A - Method for preparing nonferrous metal by vacuum thermal recovery - Google Patents
Method for preparing nonferrous metal by vacuum thermal recovery Download PDFInfo
- Publication number
- CN101643850A CN101643850A CN200910104352A CN200910104352A CN101643850A CN 101643850 A CN101643850 A CN 101643850A CN 200910104352 A CN200910104352 A CN 200910104352A CN 200910104352 A CN200910104352 A CN 200910104352A CN 101643850 A CN101643850 A CN 101643850A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- reduction
- metal
- preparing
- reaction
- 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
A method for preparing nonferrous metal by vacuum thermal recovery belongs to the vacuum metallurgy field. The process steps include: reduction material, reducing agent and assistant are firstly prepared according to chemometry of reduction reaction and then mixed with grinding mills and fed into a vacuum ball milling tank, heating is carried out and the reaction system is ball milled, and vacuumthermal reduction reaction under ball milling is carried out, so as to obtain metal steam and obtain condensed metal by condensation. The metal preparation method is short in process route, low in energy consumption and high in yield and is high-efficiency and energy-saving.
Description
Technical field
The present invention relates to a kind of method of preparing nonferrous metal by vacuum thermal recovery, belong to the vacuum metallurgy field.
Background technology
Vacuum metallurgy technology is widely used in smelting field of nonferrous metal, includes the thermal reduction extraction of non-ferrous metal and separation, refining, enrichment etc.The non-ferrous metal that relates to comprises magnesium, aluminium, strontium, lithium etc.
The technology general process of existing vacuum-thermal reduction technology is: the ore of (1) calcining containing metal element, the preparation metal oxide, (2) ball milling fining metal oxide particle, (3) by the stoichiometry preparing metal oxide compound of reduction reaction and reductive agent, auxiliary agent, (4) mix also briquetting, (5) lumpy material is put into the vacuum reducing jar and reacted, metal is extracted in condensation.
The subject matter that existing vacuum-thermal reduction technology exists has two, and the one, reactant is granular inorganics, and particle self and intergranular heat transfer efficiency are low, and production efficiency is low; The 2nd, the slag of reactant and generation is in stationary state mutually in the reaction process, and the contact rate between the reactant is low, even slag can occur and hinder mutually and be in contact with one another the situation of carrying out reduction reaction between reactant, and mass transport efficient is low, and reduction rate and reduction ratio are low.
Summary of the invention
The objective of the invention is to solve the heat transmission, the inefficient problem of mass transport that exist in the existing vacuum-thermal reduction technology, a kind of novel method that can significantly improve reaction efficiency and reduction ratio is provided.
Technical scheme of the present invention is: according to the stoichiometry preparation reactant of reduction reaction, together put into a reduction jar vacuum-thermal reduction of carrying out under the ball milling with reactant quality 0.1-20 abrading-ball doubly and react, obtain metallic vapor and condensation and obtain the condensed state metal.Wherein, ball milling can be realized by revolving reaction jar or stirring reaction material.
Compared with prior art, method provided by the invention can significantly improve the energy, the resource utilization of vacuum-thermal reduction process, improves the technical economic benefit of reduction process:
(1) in reaction mass, added abrading-ball, and abrading-ball and participate in being in the relative movement state between the various materials, reduction jar inwall of reaction in the reaction process, the benefit of bringing has: abrading-ball is the good medium of heat transmission, after jar obtaining heat from reduction, pass to all reactants fast, equably, improve the heat transfer efficiency in the reaction process; Levigate and the stirring reaction system of abrading-ball energy contacts probability between the intensified response thing, prevents that the slag that reacts generation from hindering being in contact with one another between reactant mutually, improves the mass transport efficient in the reaction process.
(2) save briquetting technology, can shorten technical process, enhance productivity, reduce production costs.
Embodiment
Further specify the specific embodiment of the present invention below in conjunction with embodiment.
Embodiment 1:
(1) get the raw materials ready, the reaction starting material are: the calcined dolomite of MgO content 40%, and carbon dust and Calcium Fluoride (Fluorspan), the batching mass ratio is: MgO: C: CaF
2=100: 54: 16, abrading-ball was the aluminum oxide abrading-ball, and quality is calcined dolomite, carbon dust and Calcium Fluoride (Fluorspan) three quality sum 0.1 times;
(2) material is packed into vacuum reducing jar is controlled at 1400 ± 50 ℃, vacuum degree control at 20-200Pa with temperature of charge, rotates the vacuum reducing jar simultaneously, reduces 1 hour;
(3) collect the metallic vapor that reduction generates and be condensed into the condensed state MAGNESIUM METAL.
Embodiment 2:
(1) get the raw materials ready, the reaction starting material are: the calcined dolomite of MgO content 40%, and industrial one-level SrO, the ferrosilicon of fluorite and silicone content 75%, the batching mass ratio is: MgO: SrO: Si: CaF
2=100: 140: 50: 10, abrading-ball was the aluminum oxide abrading-ball, and quality is calcined dolomite, SrO, fluorite and ferrosilicon quality sum 20 times;
(2) material is packed into vacuum reducing jar is opened whipping appts, and the stirring reaction material is heated to be 1200 ± 50 ℃ with reaction system, vacuum tightness 1-20Pa reduction 1 hour down;
(3) collect metallic vapor that reduction generates and the Mg-Sr alloy that is condensed into condensed state.
Embodiment 3:
(1) get the raw materials ready, the reaction starting material are: Lithium Oxide 98min, aluminium, the batching mass ratio is: Li
2O: Al=100: 80, abrading-ball is the aluminum oxide abrading-ball, quality is Lithium Oxide 98min and aluminium quality sum 10 times;
(2) material is packed into vacuum reducing jar is opened whipping appts, and the stirring reaction material is heated to be 1000 ± 50 ℃ with reaction system, vacuum tightness 0.1-10Pa reduction 5 hours down;
(3) collect the metallic vapor that reduction generates and be condensed into the condensed state metallic lithium.
Claims (3)
1. the method for a preparing nonferrous metal by vacuum thermal recovery, processing step is: according to the stoichiometry preparation reactant of reduction reaction, put into the reduction jar and carry out the vacuum-thermal reduction reaction, obtain metallic vapor and condensation and obtain the condensed state metal; It is characterized in that, in the reduction jar, add reactant quality 0.1-20 abrading-ball doubly, carry out the vacuum-thermal reduction reaction under the ball milling.
2. the method for preparing nonferrous metal by vacuum thermal recovery according to claim 1 is characterized in that, the revolving reaction jar is realized ball milling.
3. the method for preparing nonferrous metal by vacuum thermal recovery according to claim 1 is characterized in that, the stirring reaction material is realized ball milling in the reaction process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910104352A CN101643850A (en) | 2009-07-16 | 2009-07-16 | Method for preparing nonferrous metal by vacuum thermal recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910104352A CN101643850A (en) | 2009-07-16 | 2009-07-16 | Method for preparing nonferrous metal by vacuum thermal recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101643850A true CN101643850A (en) | 2010-02-10 |
Family
ID=41655911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910104352A Pending CN101643850A (en) | 2009-07-16 | 2009-07-16 | Method for preparing nonferrous metal by vacuum thermal recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101643850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409185A (en) * | 2011-11-14 | 2012-04-11 | 宁夏华亿镁业股份有限公司 | Novel reduction method in pidgeon magnesium refining process |
| CN108505070A (en) * | 2018-04-23 | 2018-09-07 | 东北大学 | A method of extracting oxygen and metal from lunar soil lunar rock |
-
2009
- 2009-07-16 CN CN200910104352A patent/CN101643850A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409185A (en) * | 2011-11-14 | 2012-04-11 | 宁夏华亿镁业股份有限公司 | Novel reduction method in pidgeon magnesium refining process |
| CN108505070A (en) * | 2018-04-23 | 2018-09-07 | 东北大学 | A method of extracting oxygen and metal from lunar soil lunar rock |
| CN108505070B (en) * | 2018-04-23 | 2019-07-16 | 东北大学 | A method of extracting oxygen and metal from lunar soil lunar rock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102851425B (en) | Method for high-efficiency separation and comprehensive utilization of iron, aluminum and sodium in high-iron red mud | |
| CN101812599B (en) | Method for preparing metal magnesium by using dolomite as raw material | |
| CN100348752C (en) | Vacuum, heat and coal reduction method for extracting metal magnesium from magnesium oxide ore | |
| CN102080164A (en) | Method for preparing Mg-Li alloy by vacuum synchronous thermal reduction | |
| CN101560603A (en) | Method for preparing magnesium metal and by-product by vacuum carbothermic reduction with serpentine minerals | |
| CN100398679C (en) | Method of preparing Mg, Sr alloy by vacuum heat reduction | |
| CN112111660B (en) | Method for enriching lithium from lithium ore and preparing ferro-silicon alloy and recycling aluminum oxide | |
| CA3201685A1 (en) | Production of lithium chemicals and metallic lithium | |
| CN101016590A (en) | Method of preparing lithium from spodumene concentrate | |
| Wang et al. | Carbochlorination of alumina and silica from high-alumina fly ash | |
| CN107523700A (en) | A kind of method that vacuum-thermal reduction William stone ore deposit prepares magnesium metal and byproduct | |
| CN110612269B (en) | Method for producing commercial grade silicon | |
| CN104164576B (en) | Method for preparing magnesium | |
| CN103451453B (en) | Method adopting minerals containing magnesium silicate to produce magnesium | |
| CN108118143B (en) | Method for preparing lithium carbonate by extracting lithium from lepidolite through two-stage chlorination roasting-alkali liquor leaching method | |
| CN101798634B (en) | Process for smelting magnesium through melting reduction | |
| CN101643850A (en) | Method for preparing nonferrous metal by vacuum thermal recovery | |
| Fu et al. | Review on the silicothermic process for primary magnesium production | |
| CN112458298A (en) | Method for extracting vanadium by direct sodium treatment of thermal vanadium slag | |
| CA3131219C (en) | Method to convert lithium in soluble form from lithium silicate minerals by the use of an intrinsic chemical heat system | |
| CN108893572A (en) | A kind of method of valuable constituent element comprehensive reutilization in paigeite | |
| CN102011021A (en) | Method for reduction preparation of Mg-Li-Sr alloy by vacuum heat | |
| CN107723480A (en) | A kind of processing method of selected titanium ore | |
| CN113293315A (en) | Method for improving quality and reducing consumption of low-micro-carbon ferrochrome smelting by supplementing silicon outside furnace | |
| Zhao et al. | Reaction mechanism of molten NaOH decomposing Zn2SiO4 in willemite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Weidong Inventor after: Wei Guobing Inventor after: Xie Jin Inventor after: Peng Xiaodong Inventor after: Su Zhonghua Inventor after: Tang Yan Inventor after: Zhao Kaiyang Inventor before: Xie Weidong Inventor before: Wei Guobing Inventor before: Peng Xiaodong Inventor before: Su Zhonghua Inventor before: Tang Yan Inventor before: Zhao Kaiyang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIE WEIDONG WEI GUOBING PENG XIAODONG SU ZHONGHUA TANG YAN ZHAO KAIYANG TO: XIE WEIDONG WEI GUOBING XIE JIN PENG XIAODONG SU ZHONGHUA TANG YAN ZHAO KAIYANG |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100210 |