CN1806932A - Quartz gravel separation and mineral disassociation and extraction process - Google Patents
Quartz gravel separation and mineral disassociation and extraction process Download PDFInfo
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- CN1806932A CN1806932A CN 200610038120 CN200610038120A CN1806932A CN 1806932 A CN1806932 A CN 1806932A CN 200610038120 CN200610038120 CN 200610038120 CN 200610038120 A CN200610038120 A CN 200610038120A CN 1806932 A CN1806932 A CN 1806932A
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- Prior art keywords
- quartz
- gravel
- mineral
- quartz sand
- conglomerate
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 239000010453 quartz Substances 0.000 title claims abstract description 55
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 19
- 239000011707 mineral Substances 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 title description 2
- 238000000605 extraction Methods 0.000 title 1
- 239000006004 Quartz sand Substances 0.000 claims abstract description 37
- 210000003462 vein Anatomy 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000002253 acid Substances 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 238000001354 calcination Methods 0.000 claims abstract description 8
- 238000007667 floating Methods 0.000 claims abstract description 8
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000005188 flotation Methods 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000012634 fragment Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 239000010433 feldspar Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 claims description 2
- 238000006062 fragmentation reaction Methods 0.000 claims description 2
- 238000010306 acid treatment Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 44
- 208000034656 Contusions Diseases 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 235000013312 flour Nutrition 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 238000004506 ultrasonic cleaning Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 240000005373 Panax quinquefolius Species 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000011034 rock crystal Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses the technique of sorting quartz gravel and purifying mineral, comprising the following steps: choosing the high purity vein quartz gravel from confounding gravels with naked eye or ultrasonic wave detection technique, bruising, screening, autogenous grinding, calcining, foaming and floating, acid and alkali treatment, ultrasonic cleaning, and getting the quartz sand in which the SiO2 content is more than 99.98%. The quartz sand can meets the requirement of quartz glass and quartz flour, and the method is low cost, high purifying efficiency and light pollution.
Description
Technical field
The present invention relates to a kind of to vein quartz by geological movement destroy, remaining of forming piled up in the carrying back, the slide rock quartz conglomerate carries out the technology that compounding separation is purified, especially the vein quartz weathering type at Jiangsu Province's Donghai County one band remain, the slide rock quartz conglomerate, be specifically related to quartz conglomerate sorting and the mineral purifying technique that dissociates.
Background technology
The SiO of vein quartz
2Content is generally more than 98%, the primary high-quality vein quartz of the part SiO of Jiangsu Province's Donghai County one band
2Content is especially up to more than 99%, and the high-quality vein quartz is the basic material of high-grade silicon industrial products.Form in the primary vein quartz of areal output may be geologic process at different times, their mineral composition and chemical composition be difference to some extent also.When these vein quartzs are destroyed, carry and be deposited in together by the geological movement in later stage, formed promptly that the vein quartz weathering type that similar Jiangsu Province Donghai County produces remains, slide rock quartz conglomerate layer, be commonly called as the stone canopy.This quartz conglomerate is that the fragment of a plurality of vein quartzs is mixed in together, has been subjected to pollution to a certain degree.In order to satisfy industrial production such as quartz glass and high grade quartz powder to raw material SiO
2Content reaches the requirement more than 99.95%, needs that above-mentioned quartz conglomerate is carried out sorting and purifies.Existing purifying technique is the production cost height not only, and purification efficiency is low, and environmental pollution is serious, the most important thing is quartz conglomerate to be worked into industrial production such as satisfying quartz glass and high grade quartz powder to raw material SiO
2Content is up to the requirement more than 99.95%.
Summary of the invention
The objective of the invention is to: a kind of quartz conglomerate sorting and the mineral purifying technique that dissociates is provided, adopts this sorting purifying technique that quartz conglomerate is carried out sorting and purify, produce SiO
2Content reaches the quartz sand more than 99.98%, substitutes the basic material of high-quality vein quartz as high-grade silicon industrial products.
Technical solution of the present invention is: at first, the resolution method that highly purified vein quartz gravel can be discerned by the mineralogy diagnostic criterium or the existing ultrasonic listening technology of the easy identification of naked eyes sorts out from the gravel that mixes, broken through fragmentation, screening, autogenous grinding, calcining water again, foaming is floating, soda acid is handled and the ultrasonic wave cleaning, produces SiO
2Content reaches the quartz sand more than 99.98%.
Detailed process is as follows:
1, the mineralogy diagnostic criterium or the ultrasonic listening identification of identification cooperate craft or mechanical sorting that highly purified vein quartz gravel is picked out from the gravel that mixes easily according to naked eyes.The naked eyes mineralogy diagnostic criterium of identification easily are: crystallizable mineral is obvious, has sucrosic texture preferably, and crystal grain is transparent, and fracture is coarse, and mica and the association of feldspar mineral are often arranged; The principle of ultrasonic listening identification is: the crystallization of high-quality vein quartz gravel is obvious, sucrosic texture produces significant diffusion effect to ultrasonic wave preferably, cause back wave obviously faint, have with common vein quartz gravel compact structure, to ultrasonic wave to reflect to form significant difference preferably.
2, with below the select high-purity vein quartz gravel breakup to 5 centimeter, sieve with the screen(ing) machine in 5 millimeters apertures, 5 millimeters screenings are discarded.
3, the quartzy fragment of 5 millimeters to 5 centimeters of particle diameters is inserted in the autogenous tumbling mill autogenous grinding 10-12 hour, remove surface common mud, iron tramp.
4, the quartzy fragment with autogenous grinding, after cleaning is inserted in the electric furnace, 900-1200 ℃ of calcining 3-4 hour down, takes out the back and drops into shrend in the cold water more than 10 times rapidly, and cooling oven dry back is crushed to below 80 orders with quartzy twin rollers.
5, the quartz sand after will pulverizing carries out flotation with " foaming floating method " in flotation cell, thereby the associated mineral that quartz and feldspar, mica etc. are main separates; Used catching searched agent and selected for use and be suitable for neutral MD series both sexes to the meta-alkalescence ambient condition and catch and search agent, to alleviate in the production pollution to environment.
6, will handle with common acid system iron removal technology again through the quartz sand after the flotation processing, remaining irony will be decomposed stripping; Quartz sand soaks with mix acid liquor and heats and stirred 2 hours; Wherein, the proportioning of 20% sulfuric acid, 20% hydrochloric acid, 5% hydrofluoric acid is: 5: 2-4: 1, and liquid-solid volume ratio is about 5: 2, and temperature remains on 80-100 ℃.
7, the quartz sand after acid system is handled is handled with alkaline process, promptly decomposes the tiny aluminium silicate mineral that contains with alkaline solution corrosions such as NaOH; Quartz sand is soaked with 25% sodium hydroxide solution and the stirring 1 hour of heating; Liquid-solid volume ratio is about 5: 2, and temperature remains on 80-100 ℃.
8, in tank, be medium, quartz sand cleaned 3-4 time repeatedly, can obtain SiO after draining, the oven dry again with supersonic wave cleaning machine with the pure water
2Content reaches the high grade quartz sand more than 99.98%.
The concentration of acid, soak time, liquid-solid volume ratio, temperature etc. all can change near described numerical value to some extent, and the model of supersonic wave cleaning machine, power, cleaning pass, liquid-solid volume ratio all can change to some extent.
The present invention has the following advantages: 1, according to the mineralogy difference of discerning easily between the different quality quartz conglomerates, carry out simple high efficiency craft or mechanical sorting, established quartz conglomerate and substituted the basis of high-quality vein quartz as the high-grade silicon raw material of industry; 2, in the purification of quartz sand, introduce neutral " foaming floating method " and " ultrasonic wave cleaning " new technology, increased substantially the ore dressing purification efficiency, alleviated environmental pollution, reduced production cost; 3, China's Jiangsu Province's Donghai County one band remain, slide rock type vein quartz gravel aboundresources, the processing industry prosperity, regarded as state key silicon materials industrial base by the Department of Science and Technology in 2004, the present invention replaces high-grade vein quartz to produce glass sand with gravel, promoted the value of gravel resource greatly, alleviate high-grade silicon raw material of industry high-quality vein quartz contradiction in short supply day by day, had important practicality.
The specific embodiment
Embodiment 1: present embodiment is a raw material with the remaining of Jiangsu Province's Donghai County output, slide rock type vein quartz gravel, by following program processing:
1, cooperate craft or mechanical sorting that highly purified vein quartz gravel is picked out from the gravel that mixes by craft or ultrasonic listening identification.
2, select high-purity vein quartz gravel is crushed to below 5 centimeters with hammer mill band water, sieves with the screen(ing) machine in 5 millimeters apertures, 5 millimeters screenings are discarded.
3, the quartzy fragment of 5 millimeters to 5 centimeters of particle diameters is inserted in the autogenous tumbling mill autogenous grinding 10 hours, remove surface common mud, iron tramp.
4, the quartzy fragment after autogenous grinding is cleaned is inserted in the electric furnace, 900 ℃ of calcinings 3 hours down, takes out the back and drops into shrend in the cold water more than 10 times rapidly, and cooling oven dry back is crushed to below 80 orders with quartzy twin rollers.
5, the quartz sand after will pulverizing carries out flotation with " foaming floating method " in flotation cell, usedly catches that to search agent be that the both sexes of MD series are caught and searched agent.
6, will soak with mix acid liquor and the stirring 2 hours of heating through the quartz sand after the flotation processing, wherein, the proportioning of 20% sulfuric acid, 20% hydrochloric acid, 5% hydrofluoric acid is: 5: 2: 1, liquid-solid volume ratio was about 5: 2, and temperature remains on 80 ℃.
7, quartz sand is soaked with 25% sodium hydroxide solution and the stirring 1 hour of heating; Liquid-solid volume ratio is about 5: 2, and temperature remains on 80 ℃.
8, in tank, be medium, quartz sand cleaned 3 times repeatedly, after draining, the oven dry, can obtain finished product quartz sand again with supersonic wave cleaning machine with the pure water; Test result, according to said method the quartz sand SiO of Sheng Chaning
2Content reaches 99.98%.
Embodiment 2: present embodiment is a raw material with the remaining of Jiangsu Province's Donghai County output, slide rock type vein quartz gravel, by following program processing:
1, cooperate craft or mechanical sorting that highly purified vein quartz gravel is picked out from the gravel that mixes by craft or ultrasonic listening identification.
2, select high-purity vein quartz gravel is crushed to below 5 centimeters with hammer mill band water, sieves with the screen(ing) machine in 5 millimeters apertures, 5 millimeters screenings are discarded.
3, the quartzy fragment of 5 millimeters to 5 centimeters of particle diameters is inserted in the autogenous tumbling mill autogenous grinding 11 hours, remove surface common mud, iron tramp.
4, the quartzy fragment after autogenous grinding is cleaned is inserted in the electric furnace, 1100 ℃ of calcinings 3.5 hours down, takes out the back and drops into shrend in the cold water more than 10 times rapidly, and cooling oven dry back is crushed to below 80 orders with quartzy twin rollers.
5, the quartz sand after will pulverizing carries out flotation with " foaming floating method " in flotation cell, usedly catches that to search agent be that the both sexes of MD series are caught and searched agent.
6, will soak with mix acid liquor and the stirring 2 hours of heating through the quartz sand after the flotation processing.Wherein, the proportioning of 20% sulfuric acid, 20% hydrochloric acid, 5% hydrofluoric acid is: 5: 3: 1, liquid-solid volume ratio was about 5: 2, and temperature remains on 90 ℃.
7, quartz sand is soaked with 25% sodium hydroxide solution and the stirring 1 hour of heating.Liquid-solid volume ratio is about 5: 2, and temperature remains on 90 ℃.
8, in tank, be medium, quartz sand cleaned 3 times repeatedly, after draining, the oven dry, can obtain finished product quartz sand again with supersonic wave cleaning machine with the pure water.Test result, according to said method the quartz sand SiO of Sheng Chaning
2Content reaches 99.98%.
Embodiment 3: present embodiment is a raw material with the remaining of Jiangsu Province's Donghai County output, slide rock type vein quartz gravel, by following program processing:
1, cooperate craft or mechanical sorting that highly purified vein quartz gravel is picked out from the gravel that mixes by craft or ultrasonic listening identification.
2, select high-purity vein quartz gravel is crushed to below 5 centimeters with hammer mill band water, sieves with the screen(ing) machine in 5 millimeters apertures, 5 millimeters screenings are discarded.
3, the quartzy fragment of 5 millimeters to 5 centimeters of particle diameters is inserted in the autogenous tumbling mill autogenous grinding 12 hours, remove surface common mud, iron tramp.
4, the quartzy fragment after autogenous grinding is cleaned is inserted in the electric furnace, 1200 ℃ of calcinings 4 hours down, takes out the back and drops into shrend in the cold water more than 10 times rapidly, and cooling oven dry back is crushed to below 80 orders with quartzy twin rollers.
5, the quartz sand after will pulverizing carries out flotation with " foaming floating method " in flotation cell, usedly catches that to search agent be that the both sexes of MD series are caught and searched agent.
6, will soak with mix acid liquor and the stirring 2 hours of heating through the quartz sand after the flotation processing; Wherein, the proportioning of 20% sulfuric acid, 20% hydrochloric acid, 5% hydrofluoric acid is: 5: 4: 1, liquid-solid volume ratio was about 5: 2, and temperature remains on 100 ℃.
7, quartz sand is soaked with 25% sodium hydroxide solution and the stirring 1 hour of heating; Liquid-solid volume ratio is about 5: 2, and temperature remains on 100 ℃.
8, in tank, be medium, quartz sand cleaned 4 times repeatedly, after draining, the oven dry, can obtain finished product quartz sand again with supersonic wave cleaning machine with the pure water.Test result, according to said method the quartz sand SiO of Sheng Chaning
2Content reaches 99.99%.
Claims (7)
1. quartz conglomerate sorting and the mineral purifying technique that dissociates, it is characterized in that: at first, the resolution method that highly purified vein quartz gravel can be discerned by naked eyes or existing ultrasonic listening technology sorts out from the gravel that mixes, broken through fragmentation, screening, autogenous grinding, calcining water again, foaming floating method, soda acid is handled and the ultrasonic wave cleaning, produces SiO
2Content reaches the quartz sand more than 99.98%; Wherein, A, mineralogy diagnostic criterium or the ultrasonic listening identification discerned easily according to naked eyes cooperate craft or mechanical sorting, and highly purified vein quartz gravel is picked out from the gravel that mixes; B, with below the select high-purity vein quartz gravel breakup to 5 centimeter, sieve with the screen(ing) machine in 5 millimeters apertures, 5 millimeters screenings are discarded; C, the quartzy fragment of 5 millimeters to 5 centimeters of particle diameters was inserted in the autogenous tumbling mill autogenous grinding 10-12 hour, remove common mud, the iron tramp in quartz conglomerate surface; D, the quartzy fragment after autogenous grinding cleaned are inserted in the electric furnace, 900-1200 ℃ of calcining 3-4 hour down, take out the back and drop into shrend in the cold water more than 10 times rapidly, and cooling oven dry back is crushed to below 80 orders with quartzy twin rollers; E, the quartz sand after will pulverizing carry out flotation in flotation cell, used catching searched agent and selected for use and be applicable to that neutral MD series both sexes to the meta-alkalescence ambient condition are caught and search agent; F, the quartz sand after will handling through flotation are handled with the mixed acid acid system; Quartz sand after G, the acid treatment is handled with alkaline process; H, in tank, be medium, quartz sand cleaned repeatedly with supersonic wave cleaning machine with the pure water.
2. quartz conglomerate sorting according to claim 1 and the mineral purifying technique that dissociates, it is characterized in that: the naked eyes mineralogy diagnostic criterium of identification easily are: crystallizable mineral is obvious, has sucrosic texture preferably, and crystal grain is transparent, fracture is coarse, and mica and the association of feldspar mineral are often arranged.
3. quartz conglomerate sorting according to claim 1 and the mineral purifying technique that dissociates, it is characterized in that: the principle of ultrasonic listening identification is: the crystallization of high-quality vein quartz gravel is obvious, sucrosic texture produces significant diffusion effect to ultrasonic wave preferably, cause back wave obviously faint, have with common vein quartz gravel compact structure, to ultrasonic wave to reflect to form significant difference preferably.
4. quartz conglomerate sorting according to claim 1 and the mineral purifying technique that dissociates is characterized in that: mixed acid mixes with 20% sulfuric acid, 20% hydrochloric acid, 5% hydrofluoric acid, and proportioning is: 5: 2-4: 1.
5. quartz conglomerate sorting according to claim 4 and the mineral purifying technique that dissociates, it is characterized in that: liquid-solid volume ratio is 5: 2 during acid treatment, and temperature is 80-100 ℃, 2 hours time.
6. quartz conglomerate sorting according to claim 1 and the mineral purifying technique that dissociates, it is characterized in that: the solid-liquid volume ratio of quartz sand and 25% sodium hydroxide lye is 2: 5, temperature 80-100 ℃, 1 hour time.
7. quartz conglomerate sorting according to claim 1 and the mineral purifying technique that dissociates is characterized in that: the solid-liquid volume ratio of quartz sand and pure water was 1: 5 when ultrasonic wave cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100381206A CN100435967C (en) | 2006-01-26 | 2006-01-26 | Quartz gravel separation and mineral disassociation and extraction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100381206A CN100435967C (en) | 2006-01-26 | 2006-01-26 | Quartz gravel separation and mineral disassociation and extraction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1806932A true CN1806932A (en) | 2006-07-26 |
| CN100435967C CN100435967C (en) | 2008-11-26 |
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ID=36839132
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100381206A Expired - Fee Related CN100435967C (en) | 2006-01-26 | 2006-01-26 | Quartz gravel separation and mineral disassociation and extraction process |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293222B (en) * | 2008-06-13 | 2011-05-11 | 张美怡 | Separation method for quartz and femic mineral compound body |
| CN101439341B (en) * | 2007-11-19 | 2011-06-15 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Method for cleaning components of semi-conductor processing equipment |
| CN102417184A (en) * | 2011-08-26 | 2012-04-18 | 田辉明 | Method for preparing high-purity ultrafine silicon powder from vein quartz |
| CN102432022A (en) * | 2011-08-26 | 2012-05-02 | 田辉明 | Method for producing ultra-pure quartz sand by vein quartz and high-temperature chlorination device |
| CN102674376A (en) * | 2012-04-19 | 2012-09-19 | 田辉明 | Production method of quartz tailing purification |
| CN103736596A (en) * | 2013-12-30 | 2014-04-23 | 新疆有色金属研究所 | Feldspar and quartz flotation separation method |
| CN104003405A (en) * | 2014-06-06 | 2014-08-27 | 浠水县精纯石英砂厂 | Environment-friendly method for preparing high-purity quartz sand by utilizing vein quartz and quartz stone calcining furnace |
| CN104624387A (en) * | 2015-01-22 | 2015-05-20 | 东北大学 | Floatation and purification method for quartz stone pulverized through heating power |
| RU2603934C1 (en) * | 2015-06-05 | 2016-12-10 | Общество с ограниченной ответственностью "НВП Центр-ЭСТАгео" | Method of cleaning quartz sands from iron |
| CN112010317A (en) * | 2020-09-14 | 2020-12-01 | 昆明理工大学 | Method for purifying quartz sand by microwave-vacuum combined roasting |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156689A (en) * | 1996-12-20 | 1997-08-13 | 杨忠伦 | High-efficiency method for removing impurities containing iron from quartz sand |
| CN1111097C (en) * | 1997-04-18 | 2003-06-11 | 朱泗怀 | Method for extracting and selecting quartz sand by using river channel silt |
| CN1562743A (en) * | 2004-04-07 | 2005-01-12 | 张殿飞 | Method for preparing hyperpure quartz grains |
| CN1569631A (en) * | 2004-05-12 | 2005-01-26 | 刘少云 | Preparation and purification process of quartz sand and quartz powder and products thereof |
-
2006
- 2006-01-26 CN CNB2006100381206A patent/CN100435967C/en not_active Expired - Fee Related
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| CN101439341B (en) * | 2007-11-19 | 2011-06-15 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Method for cleaning components of semi-conductor processing equipment |
| CN101293222B (en) * | 2008-06-13 | 2011-05-11 | 张美怡 | Separation method for quartz and femic mineral compound body |
| CN102417184B (en) * | 2011-08-26 | 2013-04-03 | 田辉明 | Method for preparing high-purity ultrafine silicon powder from vein quartz |
| CN102432022A (en) * | 2011-08-26 | 2012-05-02 | 田辉明 | Method for producing ultra-pure quartz sand by vein quartz and high-temperature chlorination device |
| CN102432022B (en) * | 2011-08-26 | 2013-03-13 | 田辉明 | Method for producing ultra-pure quartz sand by vein quartz and high-temperature chlorination device |
| CN102417184A (en) * | 2011-08-26 | 2012-04-18 | 田辉明 | Method for preparing high-purity ultrafine silicon powder from vein quartz |
| CN102674376A (en) * | 2012-04-19 | 2012-09-19 | 田辉明 | Production method of quartz tailing purification |
| CN102674376B (en) * | 2012-04-19 | 2013-09-04 | 田辉明 | Production method of quartz tailing purification |
| CN103736596A (en) * | 2013-12-30 | 2014-04-23 | 新疆有色金属研究所 | Feldspar and quartz flotation separation method |
| CN103736596B (en) * | 2013-12-30 | 2016-02-17 | 新疆有色金属研究所 | The method of feldspar and quartzy FLOTATION SEPARATION |
| CN104003405A (en) * | 2014-06-06 | 2014-08-27 | 浠水县精纯石英砂厂 | Environment-friendly method for preparing high-purity quartz sand by utilizing vein quartz and quartz stone calcining furnace |
| CN104624387A (en) * | 2015-01-22 | 2015-05-20 | 东北大学 | Floatation and purification method for quartz stone pulverized through heating power |
| RU2603934C1 (en) * | 2015-06-05 | 2016-12-10 | Общество с ограниченной ответственностью "НВП Центр-ЭСТАгео" | Method of cleaning quartz sands from iron |
| CN112010317A (en) * | 2020-09-14 | 2020-12-01 | 昆明理工大学 | Method for purifying quartz sand by microwave-vacuum combined roasting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100435967C (en) | 2008-11-26 |
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