CN103111364A - Technology of extracting quartz and feldspar from gangue - Google Patents

Technology of extracting quartz and feldspar from gangue Download PDF

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CN103111364A
CN103111364A CN2013100709795A CN201310070979A CN103111364A CN 103111364 A CN103111364 A CN 103111364A CN 2013100709795 A CN2013100709795 A CN 2013100709795A CN 201310070979 A CN201310070979 A CN 201310070979A CN 103111364 A CN103111364 A CN 103111364A
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flotation
feldspar
mine tailing
quartz
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CN103111364B (en
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秦传明
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Hefei Wanquan Non-Metallic Minerals Science & Technology Co Ltd
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Hefei Wanquan Non-Metallic Minerals Science & Technology Co Ltd
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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

Extract technique quartzy, feldspar in a kind of mine tailing
Technical field
The present invention relates to a kind of mine tailing process field, relate to more specifically and extract technique quartzy, feldspar in a kind of mine tailing.
Background technology
Along with the propelling of China's industrialization, urbanization and modernization construction, the mineral resources demand will continue to increase considerably, and the mineral resources imbalance between supply and demand becomes increasingly conspicuous, and environmental pressure is increasing.Therefore, must from the height of strategy and the overall situation, put the critical positions more outstanding building a conservation-minded society and developing a circular economy.In Mineral Resource Domain, actively pushing forward the comprehensive utilization of mineral resources, 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 will be one of fields that the mineral products comprehensive utilization of 21st century is widest in area, with the largest potentiality, economic and social benefit is best.Storing up of a large amount of mine tailings not only takies a large amount of soils, causes the waste of mineral resources, and ecological environment is caused severe contamination.Because most mine tailings contain recuperable useful constituent under present economic technology condition.Because the restriction or the mineral processing circuit that are subjected to technique of preparing and equipment at that time are reasonable not, cause recovery rate in ore-dressing low, cause a large amount of useful constituents to be deposited in mine tailing.Some polymetallic deposits mainly reclaim the metal part, and other of great value nonmetal fluorites, 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, reduce the waste of inorganic non-metallic resource in mine tailing, the invention provides and extract technique quartzy, feldspar in a kind of mine tailing.
Technical scheme of the present invention is: extract technique quartzy, feldspar in a kind of mine tailing, its concrete steps are as follows.
(1) scouring, desliming
With mine tailing through loading machine with the raw material production feed bin of packing into, by electronic belt batcher and rubber conveyer, mine tailing is sent in swaging machine and is cleaned, remove film iron, bonding and the mud impure mineral on mine tailing surface, further wipe the broken mineral aggregate that does not become monomer.
(2) flotation
To flow in mixing cirtern through the mine tailing slurries of scouring, desliming, add 4-5%H simultaneously in mixing cirtern 2SO 4The pH value of adjusting in mixing cirtern is 6-7, simultaneously add 1 dose of flotation to stir in mixing cirtern, flotation agent 1 each constituent mass percentage is: cationic polymer 30-35%, sodium sulfonate 30-35%, diesel oil 30-35%, the described each component percentage by weight of terpenic oil 0.1-0.3% sum are 100%, and flotation agent 1 addition is 1-10kg/t.Fully reaction, after by the time having changed activity, slip is put into first paragraph flotation device 1 again and is carried out flotation.Isolate quartz and feldspar.
The flotation froth that floatingly selects flow in flotation device 2, add flotation agent 2 in flotation device 2 mixing cirterns, flotation agent 2 each constituent mass percentages are: composite amine 30-35%, aliphatic acid 30-35%, glacial acetic acid 5-10%, diesel oil 20-30%, the described each component percentage by weight of terpenic oil 0.1-0.3% sum are 100%, and flotation agent 2 additions are 1-10kg/t.The pH value that adds in ammoniacal liquor adjustment flotation device 2 is 7; , reduce Fe with the reverse flotation principle 2O 3Content is simultaneously toxic mineral and particle emersions such as mica, landwaste.
The slurry stream that the second segment flotation device floatingly selects is to flotation device 3, add floating agent 3 in flotation device 3, flotation agent 3 each constituent mass percentages are: composite amine 30-35%, soap 30-35%, glacial acetic acid 5-10%, diesel oil 20-30%, described each weight percentages sum of terpenic oil 0.1-0.3%, calgon 1-3% are 100%, and flotation agent 3 additions are 1-10kg/t.Simultaneously add 4-5%H in flotation device 3 2SO 4, the pH value of adjusting in flotation device 3 is 5-6.The feldspar emersion is come, thereby reach separating of quartz and feldspar.
(3) magnetic separation
The isolated feldspar of above-mentioned institute and quartz are put into respectively magnetic separator, and the magnetic iron ore inside isolating with high gradient magnetic separator etc. is with magnetic impurity.
(4) fine graded
To isolate the low sinople sand of high-purity with fine graded machine through the quartz of magnetic separation and than the quartz of small particle diameter.
(5) drying
Carry out abundant drying above-mentioned isolated feldspar with than the quartz sand of small particle diameter with drying machine respectively.Can be described as the high-quality feldspar powder after the feldspar drying.
(6) ultra-fine grinding
Dried quartz than small particle diameter is ground with ultrafine crusher, can obtain silicon powder.
Useful result of the present invention is: can be with lower input by the present invention, and cheap material is prepared feldspar powder, quartz sand and the silicon powder of high-quality, and wherein quartzy purity reaches 99.7%, Fe 2O 3<=0.01%, simultaneously, also improved the utilization rate of mine tailing, saved resource.
Description of drawings
Figure one is production technological process of the present invention
Specific embodiment
With gold mine tailings through loading machine with the raw material production feed bin of packing into, by electronic belt batcher and rubber conveyer, mine tailing is sent in swaging machine and cleaned, remove film iron, bonding and the mud impure mineral on mine tailing surface, further wipe the broken mineral aggregate that does not become monomer.
Will through clean, the mine tailing slurries of desliming flow in the first mixing cirtern, add simultaneously 5% H in the first mixing cirtern 2SO 4, the pH value of adjusting in the first mixing cirtern is 6.5; Slurries enter in the second mixing cirtern again, simultaneously add 1 dose of flotation to stir in the second mixing cirtern, flotation agent 1 each constituent mass percentage is: cationic polymer 30%, sodium sulfonate 35%, diesel oil 34.8%, terpenic oil 0.2%, flotation agent 1 addition is 2.5kg/t.Fully reaction, after by the time having changed activity, slip is put into first paragraph flotation device 1 again and is carried out flotation.Isolate quartz and feldspar.
The flotation froth that floatingly selects flow in flotation device 2, add flotation agent 2 in flotation device 2 mixing cirterns, flotation agent 2 each constituent mass percentages are: composite amine 35%, aliphatic acid 30%, glacial acetic acid 5%, diesel oil 29.7%, terpenic oil 0.3%, flotation agent 2 additions are 2.5kg/t.。The pH value that adds in ammoniacal liquor adjustment flotation device 2 is 7; , reduce Fe with the reverse flotation principle 2O 3Content is simultaneously toxic mineral and particle emersions such as mica, landwaste.
The slurry stream that flotation device 2 floatingly selects is to flotation device 3, add flotation agent 3 in flotation device 3, flotation agent 3 each constituent mass percentages are: composite amine 30%, soap 30%, glacial acetic acid 10%, diesel oil 27%, terpenic oil 0.3%, calgon 2.7%, flotation agent 3 additions are 2kg/t.。Add simultaneously 4% H in the flotation device 3 2SO 4, the pH value of adjusting in flotation device 3 is 6.The feldspar emersion is come, thereby reach separating of quartz and feldspar.
Magnetic separation: the isolated feldspar of above-mentioned institute and quartz are put into respectively magnetic separator, and the magnetic iron ore inside isolating with high gradient magnetic separator etc. is with magnetic impurity.
Fine graded: as will to isolate the low sinople sand of high-purity with the 200 fine graded machines of purpose through the quartz of magnetic separation and than the quartz of small particle diameter.
Dry: as to carry out abundant drying above-mentioned isolated feldspar with than the quartz sand of small particle diameter with drying machine respectively.Be the high-quality feldspar powder after the feldspar drying.
Ultra-fine grinding: dried quartz than small particle diameter is ground with ultrafine crusher, can obtain silicon powder.In the quartz that obtains and feldspar, component content as shown in Table 1.
Above embodiment is described the preferred embodiment of the present invention; be not that scope of the present invention is limited; under the prerequisite that does not break away from the principle of the invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims (9)

1. extract technique quartzy, feldspar in a mine tailing, it is characterized in that, comprise the following steps:
(1): scouring, desliming
Mine tailing is sent into swaging machine is cleaned, desliming,
(2): flotation
will be 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 to regulate plasm PH value, add flotation agent 1 to size mixing in mixing cirtern, 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, simultaneously add flotation agent 2 in flotation device 2, and add inorganic base to regulate slurries PH, carry out reverse flotation, flotation froth is got rid of stacked, in flotation device, slurries flow into flotation device 3, add flotation agent 3 in flotation device 3, add inorganic acid to regulate slurries PH, carry out direct flotation, feldspar is present in the foam of flotation, quartz is present in flotation slurry,
(3): magnetic separation
The feldspar that will floatingly select through step (2) and quartz are put into respectively magnetic separator and are carried out magnetic separation,
(4): fine graded
Quartz after step (3) magnetic separation is sieved with fine graded machine, and what particle diameter was larger is quartz sand,
(5): drying
To put into respectively drying machine through the quartz that feldspar and the process of magnetic separation are sieved and carry out abundant drying, can obtain the low iron feldspar powder of high-quality and the low sinople sand of high-purity after drying,
(6): ultra-fine grinding
The quartz sand that the particle diameter of drying is less is fully pulverized with ultrafine crusher, and is passable to the high quality silicon powder material.
2. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, described flotation agent 1 its each constituent mass percentage is: cationic polymer 30-35%, sodium sulfonate 30-35%, diesel oil 30-35%, terpenic oil 0.1-0.3%, described each component percentage by weight sum is 100%.
3. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, described flotation agent 2 its each constituent mass percentages are: composite amine 30-35%, aliphatic acid 30-35%, glacial acetic acid 5-10%, diesel oil 20-30%, terpenic oil 0.1-0.3%, described each component percentage by weight sum is 100%.
4. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, described flotation agent 3 its each constituent mass percentages are: 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%, described each weight percentages sum is 100%.
5. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, described inorganic acid is that volumetric concentration is the H of 4-5% 2SO 4
6. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, described inorganic base is ammoniacal liquor.
7. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, described the first mixing cirtern PH is 6-7.
8. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, in flotation device 2, PH is 7.
9. extract technique quartzy, feldspar in a kind of mine tailing according to claim 1, it is characterized in that, in flotation device 3, PH is 5-6.
CN201310070979.5A 2013-03-06 2013-03-06 Technology of extracting quartz and feldspar from gangue Active CN103111364B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447146A (en) * 2013-09-22 2013-12-18 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
CN104117432A (en) * 2014-07-10 2014-10-29 中南大学 Magnetic seed floatation method
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
CN107032600A (en) * 2017-03-20 2017-08-11 凯盛石英材料(黄山)有限公司 A kind of method that utilization vein quartz tailings prepares TFT LCD silicon powders
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
CN114887772A (en) * 2022-05-23 2022-08-12 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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JPS56130238A (en) * 1980-03-17 1981-10-13 Hiroshi Nakamura Method for dressing feldspar concentrate from weathered granite
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JPH08224497A (en) * 1995-02-20 1996-09-03 Sumitomo Metal Mining Co Ltd Floatation method for nonferrous metal valuable ore
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CN102029225A (en) * 2010-09-25 2011-04-27 徐霖 Method for separating feldspar and quartz by two stages of mixing and flotation
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
CN102284349A (en) * 2011-07-19 2011-12-21 罗贵达 Impurity-removal separation and purification method for weathering type feldspar ore

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN101898168A (en) * 2010-07-21 2010-12-01 衡阳县湘雁矿业有限公司 Beneficiation method for removing long quarry impurities by adopting strong magnetic flotation
CN102029225A (en) * 2010-09-25 2011-04-27 徐霖 Method for separating feldspar and quartz by two stages of mixing and flotation
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
CN102284349A (en) * 2011-07-19 2011-12-21 罗贵达 Impurity-removal separation and purification method for weathering type feldspar ore

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447146A (en) * 2013-09-22 2013-12-18 北京矿冶研究总院 Method for recovering feldspar from molybdenum ore tailings
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
CN104117432A (en) * 2014-07-10 2014-10-29 中南大学 Magnetic seed floatation method
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
CN107032600A (en) * 2017-03-20 2017-08-11 凯盛石英材料(黄山)有限公司 A kind of method that utilization vein quartz tailings prepares TFT LCD silicon powders
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
CN114887772A (en) * 2022-05-23 2022-08-12 连云港福东正佑照明电器有限公司 Quartz sand flotation method and device
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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