CN102219226A - Preparation method for high-purity fused quartz powder material applied to quartz ceramic crucible - Google Patents
Preparation method for high-purity fused quartz powder material applied to quartz ceramic crucible Download PDFInfo
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Abstract
The invention discloses a preparation method for high-purity fused quartz powder material applied to quartz ceramic crucible. The preparation method comprises the following steps: taking common vein quartz or hypergene quartz gravel of vein quartz as raw material, and adding the step of fused purification and rolling ball crushing based on the comprehensive impurity removing, and finally preparing high-purity fused powder material applied to quartz ceramic crucible. In the invention, the resource utilization ratio of the vein quartz is improved to more than 80% from about 50%, the SiO2 content of high-purity quartz sand produced by the common quartz ore achieves to more than 99.99%, the element impurity content is controlled in 30ppm, the liquidity of powder slurry with 85%-90% of solid containing content achieves to 120g/s.
Description
Technical field
The present invention relates to a kind of quartzy powder material processing method, be specifically related to be applied to high-purity fused quartz powder material preparation method of quartz ceramic crucible.
Background technology
Quartz material because of its have a series of good characteristic as: high temperature resistant, thermal expansivity is little, high-insulation, corrosion-resistant, piezoelectric effect, resonance effect with and unique optical characteristics, make it be widely used in industries such as building materials, chemical industry, electronics, electrician, military project, space flight as silicon material.
Quartz ceramic crucible comprises curing flowability, goods purity and three aspects of impurity component of product with the index request of high-purity fused quartz powder, these three aspects all are the major causes that influences the quartz ceramic crucible product, also are the difficult points that influences the quartz ceramic crucible preparation.
At present, China prepares the fused quartz ceramic crucible material and mainly selects for use the high-purity vein quartz of high-quality to process, and its technology is fairly simple, and it is less that the product of producing satisfies the scope that crucible preparation uses, and resource utilization is not high, and the final finished utilization ratio only is 30%.SiO in the fused quartz of large-scale production
2Content can't break through 99.99% always, and added value of product is low, energy consumption is high, environmental issue is outstanding, serious waste of resources.Obtain high-purity fused quartz (SiO
2〉=99.99%), can only be raw material with high-purity crystal, produce with gas smelting, electric smelting method, arc process or CVD synthesis method, the cost costliness, price 〉=20000 yuan/ton have had a strong impact on derived product production.
The purification processing technology of high efficiency, low cost is the development bottleneck of domestic quartzy processing industry.Along with the fast development of quartz ceramic crucible, fused quartz is as crucial starting material, and specification of quality is more and more higher, and the breakthrough and the industrialization of technology are very urgent.
Summary of the invention
The objective of the invention is to: a kind of high-purity fused quartz powder material preparation method that is applied to quartz ceramic crucible is provided, by being raw material with the vein quartz, adopt compound purification processing technology such as comprehensive removal of impurities, high melt, spin fragmentation, realization, improves and solidifies mobile effect with the purity of high-purity fused quartz powder material, the control of trace element crucible.
Technical solution of the present invention is: with common primary vein quartz or the secondary quartz conglomerate of vein quartz is raw material, below be referred to as vein quartz, the high-purity fusion powder body material that is applicable to quartz ceramic crucible is prepared in increase fusion purifying, spin fragmentation on the basis of comprehensive removal of impurities; This preparation method may further comprise the steps: at first comprehensive removal of impurities, promptly to quartz mine carry out slightly broken, artificial selection, static removal of impurities, grinding and sieving, gradient magnetic separation, chemical subtraction, clean pure quartz sand; Fusion purifying then, promptly pure quartz sand carries out high-temperature fusion in continuous induction melting furnace, by controlled temperature, regulate heat-treating atmosphere and feed reactive gas so that the difficult metallic impurity of removing generate volatile material removes, obtain high-purity fused quartz piece; Last spin fragmentation, promptly adopt the nonmetal wear-resisting disintegrating apparatus of silicon nitride hammer head breaker or other classes that high-purity fused quartz piece is carried out fragmentation, the crusher inwall adopts silicon nitride liner or nonmetal wear-resistant liner of other classes and crushing system sealing, the broken sand of high-purity fused quartz that fragmentation is got off enters processing in the bowling machine, carry under one's arms quartz sand at the cavity internal rotation by high velocity air, roll, particulate state quartz sand is processed into sphere, the good grain graininess of strict stepped control, the powder body material for preparing are the high-purity fused quartz powder material that is applied to quartz ceramic crucible.
Wherein, comprehensive removal of impurities: the raw ore quartz is exploited out and is adopted hammer mill to be crushed between 1～3cm size, utilizes the method specific aim of washing and graded desliming to remove dirt settling impurity on the quartzy raw ore; After drying, artificial separation can be discerned easily with naked eyes non-quartzy impurity letter sorting is abandoned; The quartz mine of 1～3cm after the cleaning carries out the static removal of impurities, and the drum rotational speed of static removal of impurities is 100r/min, and voltage is 1.8 ten thousand volts, 2 hours static removal of impurities cycles per ton; The quartz mine of 1-3cm is proceeded in small, broken bits, in small, broken bits to 80～140 orders; Employing magneticstrength in back in small, broken bits reaches the 100000e high gradient magnetic separator and carries out magnetic separation, 1 hour magnetic separation cycle per ton; The quartz mine chemical subtraction that magnetic separation is come out: carry out the acidleach first time, leaching time 12h with mass concentration 15% hydrochloric acid and magnetic separation quartz mine liquid-solid ratio 1.5:1 earlier; Then carry out the acidleach second time, leaching time 12h with mass concentration 10% sulfuric acid liquid-solid ratio 2:1 again; With the washing of the quartz sand behind the secondary pickling, be neutral then to scavenging solution pH value; The quartz sand that last wet concentration is crossed is made into slurry by the mass fraction of solids of 20%-80% and puts into the container that mechanical stirrer is housed, add mass concentration 5-10% hydrochloric acid soln and mass concentration 5-10% silicate fluoride solution, hydrochloric acid compares 1:1 with the amount of silicofluoric acid, the liquid-solid ratio 2:1 of acid solution and quartz sand, stir 1-2h at 30-50 ℃, leave standstill 10h; Quartz sand water behind the chemical subtraction is cleaned for several times, is neutral until scavenging solution pH value, prepares pure quartz sand.
Wherein, the fusion purifying: pure quartz sand is calcined in continuous type furnace, and calcining temperature is the upper limit with softening temperature 1000-1300 ℃ of quartz sand, smelting time 30-50 minute; Feed O simultaneously
2Perhaps other class reactive gass are regulated thermal treatment, and the reactive gas amount is controlled at 0.2 cubic meters per minute, and 20～30 minutes feeding time, calcining forms high-purity fused quartz piece.
Wherein, spin fragmentation: it is slightly broken at first to adopt hammer mill that high-purity fused quartz piece is carried out, and hammer mill is silicon nitride system inwall and silicon nitride system tup, is broken into 0.5～0.6mm; Carry out the spin fine grinding then, spin atomizer mill inwall, mill ball adopt silicon nitride or other class high-strength abrasion-proof materials, by spin crusher air-flow high speed rotating, rolling, the granular high-purity fused quartz sand of shaping gets high-purity fused quartz powder material, and high-purity fused quartz powder material keeps high workability 120g/S under 80%～90% high solids content condition.
Wherein, vein quartz is meant the primary and secondary vein quartz mineral deposit resource of the defined hydrothermal origin of general geology, both comprised primary ore, also comprise through the transformed weathering of later stage geologic function and remain the secondary vein quartz resource of type, slide rock type and transported deposit type, promptly be commonly called as quartz conglomerate or stone canopy.
The present invention has the following advantages:
(1) high-temperature fusion is carried out the removal of impurities purification processing to vein quartz before handling, and then carry out the high-temperature fusion purification processes, pure quartz sand after the oven dry carries out melting on the high temperature continuous type furnace, make the hydroxyl that is contained in the quartz sand in fusion process, escape, and feeding reactive gas, difficult evaporable metallic impurity generate volatile material with it and remove under hot environment, refining effect is remarkable;
(2) carry out comprehensive targetedly removal of impurities at the refractory mineral that exists in quartzite or the vein quartz raw material, comprising: flotation, magnetic separation, electric separation, chemical treatment etc., the removal of impurities process is simple;
(3) the centrifugal bowling machine of employing silicon nitride liner, carry under one's arms quartz sand in cavity internal rotation, rolling by high velocity air, particulate state quartz sand is processed into the high flowable materials that solidifies, solidify flowability and reach 120g/s, thereby realize that the quartz ceramic crucible microtexture stress for preparing is little, physical strength is big, resistance toheat is good, guarantee quartz ceramic crucible heat shock resistance intensity in use, improve the yield rate of quartz ceramic crucible;
(4) the vein quartz ore of common hydrothermal origin can obtain SiO according to the method described above
2Content is more than 99.99%, and the high-quality glass sand that element impurity total amount 20ppm such as Al, Li, Na, K, Fe, Ti, Ca, Mg, Mn, Cu, B, Co, Ni are following is brought up to quartzy resource utilization about 80% from 50%;
(5) adopt the inventive method, as long as carry out simple rock-mineral determination and chemical analysis just can differentiate mine resources can be as the silica glass raw materials for production, greatly reduce traditional industrial experimentation cost, dissolved the raw material exploitation and the procurement risk of glass sand manufacturing enterprise.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.Should be understood that these embodiment just in order to demonstrate the invention, but not limit the scope of the invention by any way.
Embodiment 1: present embodiment is a raw material with the hot-liquid type vein quartz of Jiangsu Province's Donghai County output, processes by following program:
1, adopt hammer mill to be crushed between 1～3cm size to hot-liquid type vein quartz ore; Utilize the method specific aim of washing and graded desliming to remove dirt settling impurity on the quartzy raw ore, after drying, artificial separation can be discerned easily with naked eyes non-quartzy impurity letter sorting is abandoned;
2, the quartz mine of 1～3cm after the cleaning carries out the static removal of impurities, the drum rotational speed of static removal of impurities is chosen to be 100r/min, voltage is 1.8 ten thousand volts, 2 hours static removal of impurities cycles per ton, proceed in small, broken bits to the quartz mine of 1-3cm, in small, broken bits to 80 orders, adopt magneticstrength to reach the 100000e high gradient magnetic separator and carry out magnetic separation, 1 hour magnetic separation cycle per ton;
3, the quartz mine that magnetic separation is come out adopts chemical subtraction, carries out the acidleach first time, leaching time 12h with mass concentration 15% hydrochloric acid and magnetic separation quartz mine liquid-solid ratio 1.5:1 earlier; Then carry out the acidleach second time, leaching time 12h with mass concentration 10% sulfuric acid liquid-solid ratio 2:1 again; With the washing of the quartz sand behind the secondary pickling, be neutral then to scavenging solution pH value; The quartz sand that last wet concentration is crossed is made into slurry by 20% mass fraction of solids and puts into the container that mechanical stirrer is housed, add mass concentration 5% hydrochloric acid soln and mass concentration 5% silicate fluoride solution, hydrochloric acid compares 1:1 with the amount of silicofluoric acid, the liquid-solid ratio 2:1 of acid solution and quartz sand, stir 2h at 30 ℃, leave standstill 10h; Quartz sand water behind the chemical subtraction is cleaned for several times, is neutral until scavenging solution pH value, prepares pure quartz sand;
4, pure quartz sand is carried out high melt, at first pure quartz sand is calcined in the fused quartz continuous type furnace, and calcining temperature is 1000 ℃, and smelting time 50 minutes feeds O simultaneously
2Regulate thermal treatment, the reactive gas amount is controlled at 0.2 cubic meters per minute, 30 minutes feeding time, prepare high-purity fused quartz piece, Al, the Li in high-purity fused quartz piece, Na, K, Fe, Ti, Ca, Mg, Mn, Cu, B, Co, below 13 kinds of metallic element total impurities of Ni 30ppm;
5, adopt the silicon nitride hammer head breaker to be broken into 0.5～0.8mm coarse particles to high-purity fused quartz piece, and, be crushed to 80% curing content flowability and reach 120g/s, prepare high-purity fused quartz powder material carrying out fragmentation in the coarse particles input spin crusher.
Embodiment 2: present embodiment is a raw material with the vein quartz of Jiangsu Province's Donghai County output, processes by following program:
1, with the vein quartz ore with below hammer mill, jaw crusher or the hand breaking to 2 centimeter, the non-quartzy impurity letter sorting that naked eyes wherein can be discerned easily abandons;
2, the quartz mine of 1～2cm after the cleaning carries out the static removal of impurities, the drum rotational speed of static removal of impurities is chosen to be 100r/min, voltage is 1.8 ten thousand volts, 2 hours static removal of impurities cycles per ton, proceed in small, broken bits to the quartz mine of 1-2cm, in small, broken bits to 110 orders, adopt magneticstrength to reach the 100000e high gradient magnetic separator and carry out magnetic separation, 1 hour magnetic separation cycle per ton;
3, the quartz mine that magnetic separation is come out adopts chemical subtraction, carries out the acidleach first time, leaching time 12h with mass concentration 15% hydrochloric acid and magnetic separation quartz mine liquid-solid ratio 1.5:1 earlier; Then carry out the acidleach second time, leaching time 12h with mass concentration 10% sulfuric acid liquid-solid ratio 2:1 again; With the washing of the quartz sand behind the secondary pickling, be neutral then to scavenging solution pH value; The quartz sand that last wet concentration is crossed is made into slurry by 50% mass fraction of solids and puts into the container that mechanical stirrer is housed, add mass concentration 10% hydrochloric acid soln and mass concentration 10% silicate fluoride solution, hydrochloric acid compares 1:1 with the amount of silicofluoric acid, the liquid-solid ratio 2:1 of acid solution and quartz sand, stir 1.5h at 40 ℃, leave standstill 10h; Quartz sand water behind the chemical subtraction is cleaned for several times, is neutral until scavenging solution pH value, prepares pure quartz sand;
4, pure quartz sand is carried out high melt, at first pure quartz sand is calcined in the fused quartz continuous type furnace, calcining temperature is 1150 ℃, smelting time 40 minutes, reactive gas is regulated thermal treatment simultaneously, and the reactive gas amount is controlled at 0.2 cubic meters per minute, 25 minutes feeding time, prepare high-purity fused quartz piece, Al, the Li in high-purity fused quartz piece, Na, K, Fe, Ti, Ca, Mg, Mn, Cu, B, Co, below 13 kinds of metallic element total impurities of Ni 30ppm;
5, adopt the silicon nitride hammer head breaker to be broken into 0.5～0.8mm coarse particles to high-purity fused quartz piece, and, be crushed to 85% curing content flowability and reach 120g/s, prepare high-purity fused quartz powder material carrying out fragmentation in the coarse particles input spin crusher.
Embodiment 3: the primary high-quality vein quartz of part of Jiangsu Province's Donghai County one band is destroyed, carries and be deposited in together by the geological movement in later stage, formed that the vein quartz weathering type remains, slide rock quartz conglomerate layer, be commonly called as the stone canopy, this quartz conglomerate is that the fragment of a plurality of quartz veins is mixed in together, and has been subjected to pollution to a certain degree; 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, impurity is less, the lighter quartz conglomerate hand-sorted of pollution is picked out, with hammer or jaw crusher quartz conglomerate band water is crushed to below the 2cm, screen(ing) machine with 2 millimeters apertures sieves, 2 millimeters screen underflows are discarded, quartzy fragment is inserted in the autogenous mill autogenous grinding 1 hour, remove surface common mud, iron contamination;
2, the quartz mine of 1～2cm after the cleaning carries out the static removal of impurities, the drum rotational speed of static removal of impurities is chosen to be 100r/min, voltage is 1.8 ten thousand volts, 2 hours static removal of impurities cycles per ton, proceed in small, broken bits to the quartz mine of 1-2cm, in small, broken bits to 140 orders, adopt magneticstrength to reach the 100000e high gradient magnetic separator and carry out magnetic separation, 1 hour magnetic separation cycle per ton;
3, the quartz mine that magnetic separation is come out adopts chemical subtraction, carries out the acidleach first time, leaching time 12h with mass concentration 15% hydrochloric acid and magnetic separation quartz mine liquid-solid ratio 1.5:1 earlier; Then carry out the acidleach second time, leaching time 12h with mass concentration 10% sulfuric acid liquid-solid ratio 2:1 again; With the washing of the quartz sand behind the secondary pickling, be neutral then to scavenging solution pH value; The quartz sand that last wet concentration is crossed is made into slurry by 80% mass fraction of solids and puts into the container that mechanical stirrer is housed, add mass concentration 15% hydrochloric acid soln and mass concentration 15% silicate fluoride solution, hydrochloric acid compares 1:1 with the amount of silicofluoric acid, the liquid-solid ratio 2:1 of acid solution and quartz sand, stir 1h at 50 ℃, leave standstill 10h; Quartz sand water behind the chemical subtraction is cleaned for several times, is neutral until scavenging solution pH value, prepares pure quartz sand;
4, pure quartz sand is carried out high melt, at first pure quartz sand is calcined in the fused quartz continuous type furnace, and calcining temperature is 1300 ℃, and smelting time 30 minutes feeds O simultaneously
2Regulate thermal treatment, the reactive gas amount is controlled at 0.2 cubic meters per minute, 20 minutes feeding time, prepare high-purity fused quartz piece, Al, the Li in high-purity fused quartz piece, Na, K, Fe, Ti, Ca, Mg, Mn, Cu, B, Co, below 13 kinds of metallic element total impurities of Ni 30ppm;
5, adopt the silicon nitride hammer head breaker to be broken into 0.5～0.8mm coarse particles to high-purity fused quartz, and, be crushed to 90% curing content flowability and reach 120g/s, prepare high-purity fused quartz powder material carrying out fragmentation in the coarse particles input spin crusher.
Claims (4)
1. be applied to high-purity fused quartz powder material preparation method of quartz ceramic crucible, it is characterized in that: this preparation method is a raw material with common primary vein quartz or the secondary quartz conglomerate of vein quartz, and the high-purity fusion powder body material that is applicable to quartz ceramic crucible is prepared in increase fusion purifying, spin fragmentation on the basis of comprehensive removal of impurities; This preparation method may further comprise the steps: at first comprehensive removal of impurities, promptly to quartz mine carry out slightly broken, artificial selection, static removal of impurities, grinding and sieving, gradient magnetic separation, chemical subtraction, clean pure quartz sand; Fusion purifying then, promptly pure quartz sand carries out high-temperature fusion in continuous induction melting furnace, by controlled temperature, regulate heat-treating atmosphere and feed reactive gas so that the difficult metallic impurity of removing generate volatile material removes, obtain high-purity fused quartz piece; Last spin fragmentation, promptly adopt the nonmetal wear-resisting disintegrating apparatus of silicon nitride hammer head breaker or other classes that high-purity fused quartz piece is carried out fragmentation, the crusher inwall adopts silicon nitride liner or nonmetal wear-resistant liner of other classes and crushing system sealing, the broken sand of high-purity fused quartz that fragmentation is got off enters processing in the bowling machine, carry under one's arms quartz sand at the cavity internal rotation by high velocity air, roll, particulate state quartz sand is processed into sphere, the good grain graininess of strict stepped control, the powder body material for preparing are the high-purity fused quartz powder material that is applied to quartz ceramic crucible.
2. the high-purity fused quartz powder material preparation method that is applied to quartz ceramic crucible according to claim 1, it is characterized in that comprehensive removal of impurities: the raw ore quartz is exploited out and is adopted hammer mill to be crushed between 1～3cm size, utilizes the method specific aim of washing and graded desliming to remove dirt settling impurity on the quartzy raw ore; After drying, artificial separation can be discerned easily with naked eyes non-quartzy impurity letter sorting is abandoned; The quartz mine of 1～3cm after the cleaning carries out the static removal of impurities, and the drum rotational speed of static removal of impurities is 100r/min, and voltage is 1.8 ten thousand volts, 2 hours static removal of impurities cycles per ton; The quartz mine of 1-3cm is proceeded in small, broken bits, in small, broken bits to 80～140 orders; Employing magneticstrength in back in small, broken bits reaches the 100000e high gradient magnetic separator and carries out magnetic separation, 1 hour magnetic separation cycle per ton; The quartz mine chemical subtraction that magnetic separation is come out: carry out the acidleach first time, leaching time 12h with mass concentration 15% hydrochloric acid and magnetic separation quartz mine liquid-solid ratio 1.5:1 earlier; Then carry out the acidleach second time, leaching time 12h with mass concentration 10% sulfuric acid liquid-solid ratio 2:1 again; With the washing of the quartz sand behind the secondary pickling, be neutral then to scavenging solution pH value; The quartz sand that last wet concentration is crossed is made into slurry by the mass fraction of solids of 20%-80% and puts into the container that mechanical stirrer is housed, add mass concentration 5% one 15% hydrochloric acid solns and mass concentration 5% one 15% silicate fluoride solutions, hydrochloric acid compares 1:1 with the amount of silicofluoric acid, the liquid-solid ratio 2:1 of acid solution and quartz sand, stir 1-2h at 30-50 ℃, leave standstill 10h; Quartz sand water behind the chemical subtraction is cleaned for several times, is neutral until scavenging solution pH value, prepares pure quartz sand.
3. the high-purity fused quartz powder material preparation method that is applied to quartz ceramic crucible according to claim 1, it is characterized in that the fusion purifying: pure quartz sand is calcined in continuous type furnace, calcining temperature is the upper limit with softening temperature 1000-1300 ℃ of quartz sand, smelting time 30-50 minute; Feed O simultaneously
2Perhaps other class reactive gass are regulated thermal treatment, and the reactive gas amount is controlled at 0.2 cubic meters per minute, and 20～30 minutes feeding time, calcining forms high-purity fused quartz piece.
4. the high-purity fused quartz powder material preparation method that is applied to quartz ceramic crucible according to claim 1, it is characterized in that the spin fragmentation: it is slightly broken at first to adopt hammer mill that high-purity fused quartz piece is carried out, hammer mill is silicon nitride system inwall and silicon nitride system tup, is broken into 0.5～0.8mm; Carry out the spin fine grinding then, spin atomizer mill inwall, mill ball adopt silicon nitride or other class high-strength abrasion-proof materials, by spin crusher air-flow high speed rotating, rolling, the granular high-purity fused quartz sand of shaping gets high-purity fused quartz powder material, and high-purity fused quartz powder material keeps high workability 120g/S under 80%～90% high solids content condition.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838123A (en) * | 2012-09-17 | 2012-12-26 | 连云港桃盛熔融石英有限公司 | Method for purifying quartz sand |
| CN103011567A (en) * | 2012-12-28 | 2013-04-03 | 江苏太平洋石英股份有限公司 | Preparation method of quartz ceramic crucible |
| CN104353548A (en) * | 2013-10-21 | 2015-02-18 | 东莞市长安东阳光铝业研发有限公司 | Process for removing iron in glass sand through magnetic separation |
| CN107793035A (en) * | 2017-11-09 | 2018-03-13 | 新沂市宏润石英硅微粉有限公司 | A kind of preparation method of fused quartz powder |
| CN109020523A (en) * | 2018-07-27 | 2018-12-18 | 东海县太阳光新能源有限公司 | A kind of low iron ultrawhite fused quartz ceramic crucible preparation method |
| CN109503184A (en) * | 2018-12-29 | 2019-03-22 | 云南永昌硅业股份有限公司 | A kind of dry type high temperature resistant gainster and the preparation method and application thereof |
| CN110803860A (en) * | 2019-11-19 | 2020-02-18 | 新沂北美高科耐火材料有限公司 | Preparation method of electronic-grade spherical fused quartz refractory material |
| CN110894158A (en) * | 2019-11-22 | 2020-03-20 | 苏州溪能环保科技有限公司 | Preparation method of low-iron fused quartz powder for solar polycrystalline silicon ingot casting |
| CN110903031A (en) * | 2019-12-16 | 2020-03-24 | 李小冬 | Preparation method of color fused quartz material |
| CN110922175A (en) * | 2019-11-30 | 2020-03-27 | 中材江苏太阳能新材料有限公司 | Preparation method of fused quartz crucible for high-performance polycrystalline silicon ingot casting |
| CN112624579A (en) * | 2020-12-03 | 2021-04-09 | 东海县奥兰石英科技有限公司 | Preparation method and device for producing large-diameter transparent quartz lump by integrated method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337767A (en) * | 2008-08-15 | 2009-01-07 | 杜建中 | Purification method in process of production of high-pure quartz sand as raw material of quartz glass |
| CN101417806A (en) * | 2007-10-23 | 2009-04-29 | 贵州金沙高科硅业开发有限公司 | Silicon micropowder and preparation method thereof |
-
2011
- 2011-04-06 CN CN 201110084694 patent/CN102219226A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417806A (en) * | 2007-10-23 | 2009-04-29 | 贵州金沙高科硅业开发有限公司 | Silicon micropowder and preparation method thereof |
| CN101337767A (en) * | 2008-08-15 | 2009-01-07 | 杜建中 | Purification method in process of production of high-pure quartz sand as raw material of quartz glass |
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| CN102838123A (en) * | 2012-09-17 | 2012-12-26 | 连云港桃盛熔融石英有限公司 | Method for purifying quartz sand |
| CN103011567A (en) * | 2012-12-28 | 2013-04-03 | 江苏太平洋石英股份有限公司 | Preparation method of quartz ceramic crucible |
| CN103011567B (en) * | 2012-12-28 | 2015-09-23 | 江苏太平洋石英股份有限公司 | A kind of preparation method of quartz ceramic crucible |
| CN104353548A (en) * | 2013-10-21 | 2015-02-18 | 东莞市长安东阳光铝业研发有限公司 | Process for removing iron in glass sand through magnetic separation |
| CN107793035A (en) * | 2017-11-09 | 2018-03-13 | 新沂市宏润石英硅微粉有限公司 | A kind of preparation method of fused quartz powder |
| CN109020523A (en) * | 2018-07-27 | 2018-12-18 | 东海县太阳光新能源有限公司 | A kind of low iron ultrawhite fused quartz ceramic crucible preparation method |
| CN109503184A (en) * | 2018-12-29 | 2019-03-22 | 云南永昌硅业股份有限公司 | A kind of dry type high temperature resistant gainster and the preparation method and application thereof |
| CN110803860A (en) * | 2019-11-19 | 2020-02-18 | 新沂北美高科耐火材料有限公司 | Preparation method of electronic-grade spherical fused quartz refractory material |
| CN110894158A (en) * | 2019-11-22 | 2020-03-20 | 苏州溪能环保科技有限公司 | Preparation method of low-iron fused quartz powder for solar polycrystalline silicon ingot casting |
| CN110922175A (en) * | 2019-11-30 | 2020-03-27 | 中材江苏太阳能新材料有限公司 | Preparation method of fused quartz crucible for high-performance polycrystalline silicon ingot casting |
| CN110903031A (en) * | 2019-12-16 | 2020-03-24 | 李小冬 | Preparation method of color fused quartz material |
| CN112624579A (en) * | 2020-12-03 | 2021-04-09 | 东海县奥兰石英科技有限公司 | Preparation method and device for producing large-diameter transparent quartz lump by integrated method |
| CN112624579B (en) * | 2020-12-03 | 2021-09-17 | 东海县奥兰石英科技有限公司 | Preparation method and device for producing large-diameter transparent quartz lump by integrated method |
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Application publication date: 20111019 |