CN103896286B - The technique of high-purity quartz prepared by a kind of high tripoli - Google Patents
The technique of high-purity quartz prepared by a kind of high tripoli Download PDFInfo
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- CN103896286B CN103896286B CN201410161996.4A CN201410161996A CN103896286B CN 103896286 B CN103896286 B CN 103896286B CN 201410161996 A CN201410161996 A CN 201410161996A CN 103896286 B CN103896286 B CN 103896286B
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Abstract
The invention discloses the technique that high purity quartz prepared by a kind of high tripoli, through operations such as ore dressing → calcining shrend → abrasive dust → magnetic separation → electrostatic separation → pickling → washed with de-ionized water → oven dry, obtain SiO
2the high-purity quartz of content>=99.95%.The present invention has low in raw material price, rich in mineral resources, advantages of simple technological process, SiO
2the advantages such as content is high, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to high-purity quartz and manufacture field, specifically relate to the technique that high-purity quartz prepared by a kind of high tripoli.
Background technology
High-purity quartz material has excellent physics-chem characteristic, and hardness is high, high temperature resistant, corrosion-resistant, electric conductivity is low, wave penetrate capability is good, stable performance.Particularly its inherent molecular chain structure, crystal shape and lattice variations rule, the thermal expansivity made it have is little, the optical characteristics of high-insulation, piezoelectric effect, resonance effect and its uniqueness, obtains applying more and more widely in the field such as sealing-in, aerospace, defence and military of many high-tech areas as Novel electric light source, microelectronics, high insulation.
High-purity quartz material is prepared in domestic main use crystal, quartz deposit (CN103086382A) and high-quality quartz sand (CN101391871A) ore deposit.Because these several raw material mineral reserve are deficient, expensive, complicated process of preparation, be difficult to meet growing demand.
Summary of the invention
The invention provides the technique that high-purity quartz prepared by a kind of high tripoli, through operations such as ore dressing → calcining → shrend → abrasive dust → magnetic separation → electrostatic separation → pickling → washed with de-ionized water → oven dry, obtain SiO
2the high-purity quartz of content>=99.95%.
The technique of high-purity quartz is prepared, SiO in described high tripoli with high tripoli
2content>=98%.
In above-mentioned technique, calcining temperature is 850 ~ 900 DEG C, and calcining duration is 1 hour.
In above-mentioned technique, after abrasive dust, particle diameter reaches 1800 orders.
In above-mentioned technique, employing magnetic strength is the magnetic plant of 50 ~ 15000 Gausses, effectively removes iron, ferrotianium class ferromagnetism and weak magnetic impurity.
In above-mentioned technique, adopt voltage to be 20 ~ 30 kilovolts of electrostatic separators, the non magnetic ore deposit in removing mineral is as impurity such as potassium, albite, aluminium, micas.
In above-mentioned technique, the mixing solutionss such as hydrochloric acid, oxalic acid, citric acid and hydrofluoric acid are adopted to carry out pickling.
Adopt the high-purity quartz SiO that above-mentioned technique obtains
2content>=99.95%.
The present invention compared with prior art has the following advantages:
1, the present invention utilizes and domesticly enriches high tripoli for raw material, cheap, reduces the manufacturing cost of high-purity quartz, high financial profit.
2, preparation technology of the present invention is simple, advanced technology, good impurity removing effect.
3, the high-purity quartz SiO of present invention process acquisition
2content>=99.95%, meets the need of market.
Accompanying drawing explanation
Fig. 1 is process flow sheet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to specification sheets word to make those skilled in the art.
Select and use SiO
2the high tripoli raw ore of content>=98%; Select the ore deposit soil met the demands to put into calcining furnace to calcine, calcining temperature is 850 ~ 900 DEG C, and calcining duration is 1 hour; Ore deposit soil after calcining enters chilling in water, makes mineral structure become loose; With the high silicon liner ultra-fine grinding mill of homogenous medium material, Ultrafine Grinding is carried out to the ore deposit soil after shrend and reach 1800 orders; Employing magnetic strength is the magnetic plant of 50 ~ 15000 Gausses, effectively removes iron, ferrotianium class ferromagnetism and weak magnetic impurity in the soil of ore deposit; Adopt voltage to be 20 ~ 30 kilovolts of electrostatic separators, non magnetic ore deposit in removing ore deposit soil is as impurity such as potassium, albite, aluminium, micas; Adopt the mixing solutions such as hydrochloric acid, oxalic acid, citric acid and hydrofluoric acid to carry out pickling to ore deposit soil, to remove in the soil of ore deposit the impurity such as iron, sodium, lead, calcium, aluminium, magnesium; Employing deionization is washed, and effectively removes the impurity after pickling; Again through baking operation, obtain SiO
2the high-purity quartz of content>=99.95%.
After testing, the high-purity quartz material composition of preparation is as shown in table 1, SiO
2content>=99.95%, meets the demands.
High-purity quartz material composition (massfraction/%)
Although embodiment of the present invention are open as above, but it is not limited in listed in specification sheets and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (4)
1. a technique for high-purity quartz prepared by high tripoli, it is characterized in that, through ore dressing → calcining → shrend → abrasive dust → magnetic separation → electrostatic separation → pickling → washed with de-ionized water → baking operation, obtains SiO
2the high-purity quartz of content>=99.95%;
Wherein, calcining temperature is 850 ~ 900 DEG C, and calcining duration is 1 hour;
Hydrochloric acid, oxalic acid, citric acid and hydrofluoric acid mixing solutions is adopted to carry out pickling in described acid pickling step.
2. the technique of high-purity quartz prepared by high tripoli according to claim 1, it is characterized in that, SiO in described high tripoli
2content>=98%.
3. the technique of high-purity quartz prepared by high tripoli according to claim 1, it is characterized in that, after abrasive dust, particle diameter reaches 1800 orders.
4. the technique of high-purity quartz prepared by high tripoli according to claim 1, it is characterized in that, employing magnetic induction density is the magnetic plant of 50 ~ 15000 Gausses, effectively removes iron, ferrotianium class ferromagnetism and weak magnetic impurity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161996.4A CN103896286B (en) | 2014-04-21 | 2014-04-21 | The technique of high-purity quartz prepared by a kind of high tripoli |
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|---|---|---|---|
| CN201410161996.4A CN103896286B (en) | 2014-04-21 | 2014-04-21 | The technique of high-purity quartz prepared by a kind of high tripoli |
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| CN103896286A CN103896286A (en) | 2014-07-02 |
| CN103896286B true CN103896286B (en) | 2016-03-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556046B (en) * | 2014-12-23 | 2016-09-07 | 江苏泽龙石英有限公司 | A kind of production technology preparing high-purity silicon dioxide with quartz sand |
| CN105819454A (en) * | 2015-01-06 | 2016-08-03 | 华南师范大学 | Method for removing pyrite impurity from quartz |
| CN105948062B (en) * | 2016-04-28 | 2018-02-13 | 江苏凯达石英有限公司 | The preparation method of glass sand |
| CN107626437B (en) * | 2017-09-19 | 2019-11-29 | 江苏凯达石英股份有限公司 | A kind of glass sand preparation method of ultra-low metals content |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126727A (en) * | 2010-11-25 | 2011-07-20 | 黄山恒源石英材料有限公司 | Method for purifying vein quartz under non-pickling condition |
| RU2011125742A (en) * | 2011-06-22 | 2012-12-27 | Учреждение Российской академии наук Институт геологии Карельского научного центра Российской академии наук | METHOD OF ENRICHMENT OF NATURAL QUARTZ RAW MATERIAL |
| CN103086382A (en) * | 2012-09-28 | 2013-05-08 | 刘少云 | Process for preparing high-purity quartz from vein quartz |
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2014
- 2014-04-21 CN CN201410161996.4A patent/CN103896286B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126727A (en) * | 2010-11-25 | 2011-07-20 | 黄山恒源石英材料有限公司 | Method for purifying vein quartz under non-pickling condition |
| RU2011125742A (en) * | 2011-06-22 | 2012-12-27 | Учреждение Российской академии наук Институт геологии Карельского научного центра Российской академии наук | METHOD OF ENRICHMENT OF NATURAL QUARTZ RAW MATERIAL |
| CN103086382A (en) * | 2012-09-28 | 2013-05-08 | 刘少云 | Process for preparing high-purity quartz from vein quartz |
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Address after: 221412 Xinyi City, Xuzhou Province town of Lake Town Industrial Park, No. 18, No. Patentee after: Jiangsu Kaida quartz Limited by Share Ltd Address before: The new city of Xinyi road 221400 Jiangsu city of Xuzhou province No. 10 Patentee before: Jiangsu Kaida Silica Co., Ltd. |