CN103111364B - Technology of extracting quartz and feldspar from gangue - Google Patents
Technology of extracting quartz and feldspar from gangue Download PDFInfo
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- CN103111364B CN103111364B CN201310070979.5A CN201310070979A CN103111364B CN 103111364 B CN103111364 B CN 103111364B CN 201310070979 A CN201310070979 A CN 201310070979A CN 103111364 B CN103111364 B CN 103111364B
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- flotation
- feldspar
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Abstract
The invention relates to technology of extracting quartz and feldspar from gangue. The gangue undergoes three-segment flotation separation, magnetization, find classifying, crushing and drying to obtain valuable feldspar powder, silica powder and high-density low-iron quartz sand. With the technology of abstracting the quartz and the feldspar from the gangue, the utilization rate of the gangue is greatly improved and the problem that inorganic nonmetal resources are wasted in processing the gangue is solved.
Description
Technical field
The present invention relates to a kind of tailings glass field, relate to the technique extracting quartz, feldspar in a kind of mine tailing more specifically.
Background technology
Along with the propelling of China's industrialization, urbanization and modernization construction, mineral resources demand increases considerably continuing, and mineral resources imbalance between supply and demand becomes increasingly conspicuous, and environmental pressure is increasing.Therefore, from strategy and overall height, the critical positions more outstanding must be put building a conservation-minded society and developing a circular economy.In Mineral Resource Domain, actively pushing forward mineral resources, the comprehensive utilization of industrial waste and the recycling of regenerated resources is the important steps of building a conservation-minded society and developing a circular economy.Wherein the exploitation of mill tailings by being that the mineral products comprehensive utilization of 21st century is widest in area, with the largest potentiality, one of field that economic and social benefit is best.Storing up of a large amount of mine tailing, not only takies a large amount of soil, causes the waste of mineral resources, and causes severe contamination to ecological environment.Because most mine tailing contains recuperable useful constituent under present economic technology condition.Owing to being subject to the restriction of technique of preparing and equipment at that time or mineral processing circuit reasonable not, causing recovery rate in ore-dressing low, cause a large amount of useful constituent to be deposited in mine tailing.Some polymetallic deposits, main Footwall drift part, other of great value nonmetal fluorite, garnet, mica, feldspar and quartz etc. all reside in mine tailing, cause great waste.
Summary of the invention
For improving the rate of recovery of useful composition in mine tailing, reducing the waste of inorganic non-metallic resource in mine tailing, the invention provides the technique extracting quartz, feldspar in a kind of mine tailing.
Technical scheme of the present invention is: the technique extracting quartz, feldspar in a kind of mine tailing, its concrete steps are as follows.
(1) scouring, desliming
Raw material to be loaded through loading machine by mine tailing and produces feed bin, by electronic belt batcher and rubber conveyer mine tailing sent in swaging machine and clean, the film iron on removing mine tailing surface, bonding and mud impure mineral, wipe further broken do not become the mineral aggregate of monomer.
(2) flotation
Mine tailing slurries through scouring, desliming are flowed in mixing cirtern, in mixing cirtern, adds 4-5%H simultaneously
2sO
4pH value in adjustment mixing cirtern is 6-7, in mixing cirtern, add flotation 1 dose to stir simultaneously, the each constituent mass percentage of flotation agent 1 for: described in cationic polymer 30-35%, sodium sulfonate 30-35%, diesel oil 30-35%, terpenic oil 0.1-0.3%, each component percentage by weight sum is 100%, and flotation agent 1 addition is 1-10kg/t.Abundant reaction, after by the time changing activity, slip is put into first paragraph flotation device 1 again and is carried out flotation.Isolate quartz and feldspar.
The flotation froth floatingly selected flow in flotation device 2, flotation agent 2 is added in flotation device 2 mixing cirtern, flotation agent 2 each constituent mass percentage for: described in composite amine 30-35%, aliphatic acid 30-35%, glacial acetic acid 5-10%, diesel oil 20-30%, terpenic oil 0.1-0.3%, each component percentage by weight sum is 100%, and flotation agent 2 addition is 1-10kg/t.The pH value added in ammoniacal liquor adjustment flotation device 2 is 7; , reduce Fe by reverse flotation principle
2o
3content, simultaneously the toxic mineral such as mica, landwaste and particle emersion.
The slurry stream that second segment flotation device floatingly selects is in flotation device 3, floating agent 3 is added in flotation device 3, flotation agent 3 each constituent mass percentage for: described in composite amine 30-35%, soap 30-35%, glacial acetic acid 5-10%, diesel oil 20-30%, terpenic oil 0.1-0.3%, calgon 1-3%, each weight percentages sum is 100%, and flotation agent 3 addition is 1-10kg/t.In flotation device 3, add 4-5%H simultaneously
2sO
4, the pH value in adjustment flotation device 3 is 5-6.Feldspar emersion is come, thus reaches quartz and being separated of feldspar.
(3) magnetic separation
The isolated feldspar of above-mentioned institute and quartz are put into magnetic separator respectively, isolates the magnetic impurity of band such as the magnetic iron ore of the inside with high gradient magnetic separator.
(4) fine graded
Quartz through magnetic separation is isolated the low iron-stone sand of high-purity and the quartz compared with small particle diameter with fine graded machine.
(5) dry
Abundant drying is carried out respectively above-mentioned isolated feldspar with compared with the quartz sand drying machine of small particle diameter.High-quality feldspar powder is can be described as after feldspar drying.
(6) ultra-fine grinding
The dried quartz ultrafine crusher compared with small particle diameter is ground, can silicon powder be obtained.
Beneficial outcomes of the present invention is: can with lower input by the present invention, and cheap material prepares the feldspar powder of high-quality, quartz sand and silicon powder, and wherein the purity of quartz reaches 99.7%, Fe
2o
3≤ 0.01%, meanwhile, also improve the utilization rate of mine tailing, save resource.
Accompanying drawing explanation
Fig. 1 is production technological process of the present invention
Specific embodiment
Raw material is loaded production feed bin through loading machine by gold mine tailings, by electronic belt batcher and rubber conveyer mine tailing sent in swaging machine and clean, the removing film iron on mine tailing surface, bonding and mud impure mineral, wipe further broken do not become the mineral aggregate of monomer.
Mine tailing slurries through scouring, desliming are flowed in first mixing cirtern, in the first mixing cirtern, adds the H of 5% simultaneously
2sO
4, the pH value adjusted in the first mixing cirtern is 6.5; Slurries enter in the second mixing cirtern again, in the second mixing cirtern, add flotation 1 dose to stir simultaneously, the each constituent mass percentage of flotation agent 1 is: cationic polymer 30%, sodium sulfonate 35%, diesel oil 34.8%, terpenic oil 0.2%, and flotation agent 1 addition is 2.5kg/t.Abundant reaction, after by the time changing activity, slip is put into first paragraph flotation device 1 again and is carried out flotation.Isolate quartz and feldspar.
The flotation froth floatingly selected flow in flotation device 2, flotation agent 2 is added in flotation device 2 mixing cirtern, flotation agent 2 each constituent mass percentage is: composite amine 35%, aliphatic acid 30%, glacial acetic acid 5%, diesel oil 29.7%, terpenic oil 0.3%, and flotation agent 2 addition is 2.5kg/t.。The pH value added in ammoniacal liquor adjustment flotation device 2 is 7; , reduce Fe by reverse flotation principle
2o
3content, simultaneously the toxic mineral such as mica, landwaste and particle emersion.
The slurry stream that flotation device 2 floatingly selects is in flotation device 3, flotation agent 3 is added in flotation device 3, flotation agent 3 each constituent mass percentage is: composite amine 30%, soap 30%, glacial acetic acid 10%, diesel oil 27%, terpenic oil 0.3%, calgon 2.7%, and flotation agent 3 addition is 2kg/t.。In flotation device 3, add the H of 4% simultaneously
2sO
4, the pH value in adjustment flotation device 3 is 6.Feldspar emersion is come, thus reaches quartz and being separated of feldspar.
Magnetic separation: the isolated feldspar of above-mentioned institute and quartz are put into magnetic separator respectively, isolates the magnetic impurity of band such as the magnetic iron ore of the inside with high gradient magnetic separator.
Fine graded: the quartz through magnetic separation is isolated the low iron-stone sand of high-purity and the quartz compared with small particle diameter with the fine graded machine of 200 object.
Dry: to carry out abundant drying above-mentioned isolated feldspar with compared with the quartz sand drying machine of small particle diameter respectively.High-quality feldspar powder is after feldspar drying.
Ultra-fine grinding: the dried quartz ultrafine crusher compared with small particle diameter is ground, can silicon powder be obtained.In the quartz obtained and feldspar, component content as shown in Table 1.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under the premise without departing from the principles of the invention; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (6)
1. extract a technique for quartz, feldspar in mine tailing, it is characterized in that, comprise the following steps:
(1): scouring, desliming
Mine tailing is sent into swaging machine carries out cleaning, desliming,
(2): flotation
Will through step (1) through cleaning, mine tailing after desliming add water size mixing to concentration be 20-60%, flow into mixing cirtern, add inorganic acid and regulate slurries PH value, in mixing cirtern, add flotation agent 1 size mixing, material after sizing mixing enters flotation device 1 and carries out direct flotation, the slurries of flotation are discharged and are stacked, the foam of flotation enters flotation device 2, in flotation device 2, add flotation agent 2 simultaneously, and add inorganic base adjustment slurries PH, carry out reverse flotation, flotation froth is got rid of and stacks, in flotation device, slurries flow into flotation device 3, flotation agent 3 is added in flotation device 3, add inorganic acid and regulate slurries PH, carry out direct flotation, then feldspar is present in the foam of flotation, quartz is present in flotation slurry,
(3): magnetic separation
The feldspar floatingly selected through step (2) and quartz are put into magnetic separator respectively and carry out magnetic separation,
(4): fine graded
Sieved with fine graded machine by quartz after step (3) magnetic separation, what particle diameter was larger is quartz sand,
(5): dry
Carrying out abundant drying by putting into drying machine respectively through the feldspar of magnetic separation and the quartz through sieving, high-quality low iron feldspar powder and the low iron-stone sand of high-purity after drying, can be obtained,
(6): ultra-fine grinding
Quartz sand ultrafine crusher less for the particle diameter of drying is fully pulverized, high quality silicon powder material can be obtained;
Its each constituent mass percentage of described flotation agent 1 is: cationic polymer 30-35%, sodium sulfonate 30-35%, diesel oil 30-35%, terpenic oil 0.1-0.3%, and described each component percentage by weight sum is 100%;
Its each constituent mass percentage of described flotation agent 2 is: composite amine 30-35%, the aliphatic acid 30-35% except glacial acetic acid, glacial acetic acid 5-10%, diesel oil 20-30%, terpenic oil 0.1-0.3%, and described each component percentage by weight sum is 100%;
Its each constituent mass percentage of described flotation agent 3 is: composite amine 30-35%, soap 30-35%, glacial acetic acid 5-10%, diesel oil 20-30%, terpenic oil 0.1-0.3%, calgon 1-3%, and each weight percentages sum described is 100%.
2. according to the technique extracting quartz, feldspar in a kind of mine tailing described in claim 1, it is characterized in that, the H2SO4 of described inorganic acid to be volumetric concentration be 4-5%.
3., according to the technique extracting quartz, feldspar in a kind of mine tailing described in claim 1, it is characterized in that, described inorganic base is ammoniacal liquor.
4., according to the technique extracting quartz, feldspar in a kind of mine tailing described in claim 1, it is characterized in that, described mixing cirtern PH is 6-7.
5., according to the technique extracting quartz, feldspar in a kind of mine tailing described in claim 1, it is characterized in that, in flotation device 2, PH is 7.
6., according to the technique extracting quartz, feldspar in a kind of mine tailing described in claim 1, it is characterized in that, in flotation device 3, PH is 5-6.
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| CN103111364B true CN103111364B (en) | 2014-12-17 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447146B (en) * | 2013-09-22 | 2016-08-10 | 北京矿冶研究总院 | Method for recovering feldspar from molybdenum ore tailings |
| CN103979546A (en) * | 2014-05-05 | 2014-08-13 | 临沂晟泉矿业有限公司 | Method for producing purified high-whiteness quartz sand and silica micropowder from quartz sand tailings |
| CN104117432B (en) * | 2014-07-10 | 2016-03-16 | 中南大学 | Magnetic kind method for floating |
| CN104148174A (en) * | 2014-08-06 | 2014-11-19 | 哈巴河金坝矿业有限公司 | Recycling method and device for quartz extracted from gold flotation tailings |
| CN104671662A (en) * | 2014-09-22 | 2015-06-03 | 合肥万泉非金属矿科技有限公司 | Method for producing glass by use of tailing resources |
| CN107032600B (en) * | 2017-03-20 | 2019-07-16 | 凯盛石英材料（黄山）有限公司 | A method of TFT-LCD silicon powder is prepared using vein quartz tailings |
| CN108097454A (en) * | 2017-12-26 | 2018-06-01 | 韩恭超 | A kind of quartz mine mining tailing equipment |
| CN112619884A (en) * | 2020-12-16 | 2021-04-09 | 凯盛石英材料（黄山）有限公司 | Method for preparing electronic grade silicon micropowder by utilizing vein quartz flotation tailings |
| CN114887772B (en) * | 2022-05-23 | 2024-03-15 | 连云港福东正佑照明电器有限公司 | Quartz sand flotation method and device |
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| CN102189037A (en) * | 2011-03-08 | 2011-09-21 | 仪征风日石英科技有限公司 | Impurity removal process for quartz sand |
| CN102240595A (en) * | 2011-04-29 | 2011-11-16 | 许树清 | Method for sorting potassium feldspar |
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| JPS56130238A (en) * | 1980-03-17 | 1981-10-13 | Hiroshi Nakamura | Method for dressing feldspar concentrate from weathered granite |
| EP0323323A1 (en) * | 1987-12-24 | 1989-07-05 | Denain-Anzin Mineraux Refractaire Ceramique S.A. | Andalusite beneficiation process |
| JPH08224497A (en) * | 1995-02-20 | 1996-09-03 | Sumitomo Metal Mining Co Ltd | Floatation method for nonferrous metal valuable ore |
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