CN112723363A - Coupling purification process for producing high-purity quartz powder - Google Patents
Coupling purification process for producing high-purity quartz powder Download PDFInfo
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- CN112723363A CN112723363A CN202011571454.6A CN202011571454A CN112723363A CN 112723363 A CN112723363 A CN 112723363A CN 202011571454 A CN202011571454 A CN 202011571454A CN 112723363 A CN112723363 A CN 112723363A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 239000010453 quartz Substances 0.000 title claims abstract description 77
- 239000000843 powder Substances 0.000 title claims abstract description 36
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 25
- 239000002253 acid Substances 0.000 claims abstract description 20
- 238000001354 calcination Methods 0.000 claims abstract description 17
- 238000007885 magnetic separation Methods 0.000 claims abstract description 11
- 238000002791 soaking Methods 0.000 claims abstract description 10
- 238000005188 flotation Methods 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000010791 quenching Methods 0.000 claims abstract description 5
- 230000000171 quenching effect Effects 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 18
- 238000005554 pickling Methods 0.000 claims description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000004094 surface-active agent Substances 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- 239000008396 flotation agent Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- SXPWTBGAZSPLHA-UHFFFAOYSA-M cetalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SXPWTBGAZSPLHA-UHFFFAOYSA-M 0.000 claims description 3
- 229960000228 cetalkonium chloride Drugs 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 239000006148 magnetic separator Substances 0.000 claims description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 52
- 239000006004 Quartz sand Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention provides a coupling purification process for producing high-purity quartz powder, which comprises the following steps: 1) roughing; 2) soaking; 3) calcining; 4) water quenching; 5) ball milling; 6) magnetic separation; 7) roasting; 8) acid washing; 9) flotation; 10) washing with water; 11) and (5) drying. The purification process couples the production of the quartz powder with the purification process, and the quartz powder is purified in the production obtaining process to obtain the high-purity quartz powder, and the purification process has the advantages of simple production process and low production cost.
Description
Technical Field
The invention belongs to the field of quartz powder production and purification, and particularly relates to a coupling purification process for producing high-purity quartz powder.
Background
The quartz powder (together with quartz sand) is also called silica micropowder. Quartz sand is a hard, wear-resistant, chemically stable silicate mineral, the main mineral component of which is SiO2The quartz sand is milky white or colorless and semitransparent, has the hardness of 7, is crisp and has no cleavage, shell-shaped fracture, glossy grease, the density of 2.65 and the bulk density (20-200 meshes of 1.5), has obvious anisotropy in chemical, thermal and mechanical properties, is insoluble in acid, is slightly soluble in KOH solution and has the melting point of 1650 ℃.
The high-purity quartz powder is generally SiO2The quartz micropowder with the content higher than 99.9 percent is mainly applied to the industries of IC integrated circuits, quartz glass and the like, and higher products thereof are more widely applied to large-scale and super-large-scale integrated circuits, optical fibers, lasers, aerospace and military. The high-purity quartz powder is a neutral inorganic filler, does not contain crystal water, does not participate in the chemical reaction of the filled material, is a very stable mineral filler, is widely applied to plastics, rubber, ceramics and coatings, and can increase the yieldThe product has various new functions, and can save a large amount of raw materials.
Most of the existing high-purity quartz powder is purified after the production of finished products, for example, chinese patent publication No. CN104556047B discloses a production process for preparing high-purity quartz powder from quartz rock, which comprises the following steps: 1) soaking; 2) crushing; 3) calcining; 4) water quenching; 5) grinding; 6) magnetic separation; 7) electrostatic separation; 8) acid washing; 9) washing with deionized water; 10) and (5) drying. However, the purification of the quartz powder requires separate treatment.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a coupling purification process for producing high-purity quartz powder, which couples the production of the quartz powder with a purification process, and carries out purification in the production obtaining process to obtain the high-purity quartz powder, and the coupling purification process has the advantages of simple production process and low production cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a coupling purification process for producing high-purity quartz powder, which comprises the following steps:
1) roughing, removing floating soil and ash slag in the quartz ore;
2) soaking, namely soaking the roughly selected quartz ore in a primary pickling solution for 1-2 hours, wherein the primary pickling solution comprises the following components in parts by weight: hydrochloric acid: 20-30 parts of oxalic acid: 10-15 parts of deionized water: 50-60 parts;
3) calcining, namely feeding the soaked quartz ore into a calcining furnace for calcining, wherein the calcining temperature is 800-850 ℃, and the calcining time is 40-50 minutes;
4) water quenching, namely feeding the calcined quartz ore into cold water for rapid cooling, and drying after cooling;
5) ball milling, namely, finely crushing quartz ores, and then sending the quartz ores into a ball mill for ball milling to obtain quartz ore particles with the particle size of 150-180 meshes;
6) magnetic separation, namely selecting a permanent magnetic strong magnetic drum magnetic separator with the magnetic field intensity of 6000-8000 Gauss to carry out magnetic separation on the quartz ore particles obtained in the step 5);
7) roasting, namely roasting the quartz ore particles subjected to the magnetic separation treatment for 2-5 hours at the temperature of 300-1500 ℃;
8) acid washing, pouring the quartz ore particles treated in the step 7) into a mixed acid solution, stirring for 30-60 minutes at 50-60 ℃, filtering, washing filter residues with water until the pH value of the filtrate is 6-7 after water washing again, and collecting the filter residues;
9) and (3) flotation, namely adding the quartz ore particles subjected to acid washing into a flotation agent for flotation, wherein the flotation agent comprises the following components in parts by weight: kerosene: 50-60 parts of sodium carbonate: 15-25 parts of hexadecyl dimethyl benzyl ammonium chloride: 5-10 parts of nonylphenol polyoxyethylene ether: 10-15 parts of ethylene glycol ethyl ether: 5-10 parts of ethanol: 5-10 parts of a coupling agent: 1-5 parts of a surfactant: 1-5 parts;
10) washing, namely washing the filter residue after the acid washing by using deionized water;
11) and drying to obtain the high-purity quartz powder.
Further, in the step 1), quartz ore with the grade of silicon dioxide being more than or equal to 95% and the average diameter being 2-5 mm after being crushed is selected.
Further, in the step 5), alumina balls or zirconia balls with the diameter of 25-35 mm are adopted to ball-mill the quartz ore in a ball mill.
Further, the mixed acid solution used in the step 8) comprises the following components in parts by weight: hydrochloric acid: 50-60 parts of phosphoric acid: 10-15 parts of N, N-dimethylformamide: 5-10 parts of persulfate: 5-10 parts of a surfactant: 1-5 parts of corrosion inhibitor: 1-5 parts of deionized water: 80-100 parts.
Further, in the step 8), the surfactant is fatty alcohol-polyoxyethylene ether.
Further, in the step 8), the corrosion inhibitor is polyethylene glycol.
Further, the surfactant in the step 9) is sodium dodecyl benzene sulfonate.
Further, the coupling agent in step 9) is KH 550.
The invention has the beneficial effects that:
the purification process couples the production and purification processes of the quartz powder, the quartz powder is purified in the production process, a specially-made primary pickling solution is used for soaking and pickling, a specially-made mixed acid solution is used for carrying out secondary pickling to form twice pickling, and a specially-made flotation agent is used for carrying out flotation, so that the high-purity quartz powder is obtained, and the purification process is simple and low in production cost.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The invention relates to a coupling purification process for producing high-purity quartz powder, which comprises the following steps:
1) roughing, removing floating soil and ash slag in the quartz ore;
2) soaking, namely soaking the roughly selected quartz ore in a primary pickling solution for 1-2 hours, wherein the primary pickling solution comprises the following components in parts by weight: hydrochloric acid: 20-30 parts of oxalic acid: 10-15 parts of deionized water: 50-60 parts;
3) calcining, namely feeding the soaked quartz ore into a calcining furnace for calcining, wherein the calcining temperature is 800-850 ℃, and the calcining time is 40-50 minutes;
4) water quenching, namely feeding the calcined quartz ore into cold water for rapid cooling, and drying after cooling;
5) ball milling, namely, finely crushing quartz ores, and then sending the quartz ores into a ball mill for ball milling to obtain quartz ore particles with the particle size of 150-180 meshes;
6) magnetic separation, namely selecting a permanent magnetic strong magnetic drum magnetic separator with the magnetic field intensity of 6000-8000 Gauss to carry out magnetic separation on the quartz ore particles obtained in the step 5);
7) roasting, namely roasting the quartz ore particles subjected to the magnetic separation treatment for 2-5 hours at the temperature of 300-1500 ℃;
8) acid washing, pouring the quartz ore particles treated in the step 7) into a mixed acid solution, stirring for 30-60 minutes at 50-60 ℃, filtering, washing filter residues with water until the pH value of the filtrate is 6-7 after water washing again, and collecting the filter residues;
9) and (3) flotation, namely adding the quartz ore particles subjected to acid washing into a flotation agent for flotation, wherein the flotation agent comprises the following components in parts by weight: kerosene: 50-60 parts of sodium carbonate: 15-25 parts of hexadecyl dimethyl benzyl ammonium chloride: 5-10 parts of nonylphenol polyoxyethylene ether: 10-15 parts of ethylene glycol ethyl ether: 5-10 parts of ethanol: 5-10 parts of a coupling agent: 1-5 parts of a surfactant: 1-5 parts;
10) washing, namely washing the filter residue after the acid washing by using deionized water;
11) and drying to obtain the high-purity quartz powder.
Further, in the step 1), quartz ore with the grade of silicon dioxide being more than or equal to 95% and the average diameter being 2-5 mm after being crushed is selected.
Further, in the step 5), alumina balls or zirconia balls with the diameter of 25-35 mm are adopted to ball-mill the quartz ore in a ball mill.
Further, the mixed acid solution used in the step 8) comprises the following components in parts by weight: hydrochloric acid: 50-60 parts of phosphoric acid: 10-15 parts of N, N-dimethylformamide: 5-10 parts of persulfate: 5-10 parts of a surfactant: 1-5 parts of corrosion inhibitor: 1-5 parts of deionized water: 80-100 parts.
Further, in the step 8), the surfactant is fatty alcohol-polyoxyethylene ether.
Further, in the step 8), the corrosion inhibitor is polyethylene glycol.
Further, the surfactant in the step 9) is sodium dodecyl benzene sulfonate.
Further, the coupling agent in step 9) is KH 550.
The coupling purification process for producing high-purity quartz powder disclosed by the invention couples the production and purification processes of the quartz powder, carries out purification in the production process, adopts specially-made primary pickling liquid for soaking and pickling, adopts specially-made mixed acid solution for carrying out secondary pickling to form twice pickling, and adopts a specially-made flotation agent for carrying out flotation, so that the high-purity quartz powder is obtained, and the coupling purification process is simple in production process and low in production cost.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present invention.
Claims (8)
1. A coupling purification process for producing high-purity quartz powder is characterized by comprising the following steps:
1) roughing, removing floating soil and ash slag in the quartz ore;
2) soaking, namely soaking the roughly selected quartz ore in a primary pickling solution for 1-2 hours, wherein the primary pickling solution comprises the following components in parts by weight: hydrochloric acid: 20-30 parts of oxalic acid: 10-15 parts of deionized water: 50-60 parts;
3) calcining, namely feeding the soaked quartz ore into a calcining furnace for calcining, wherein the calcining temperature is 800-850 ℃, and the calcining time is 40-50 minutes;
4) water quenching, namely feeding the calcined quartz ore into cold water for rapid cooling, and drying after cooling;
5) ball milling, namely, finely crushing quartz ores, and then sending the quartz ores into a ball mill for ball milling to obtain quartz ore particles with the particle size of 150-180 meshes;
6) magnetic separation, namely selecting a permanent magnetic strong magnetic drum magnetic separator with the magnetic field intensity of 6000-8000 Gauss to carry out magnetic separation on the quartz ore particles obtained in the step 5);
7) roasting, namely roasting the quartz ore particles subjected to the magnetic separation treatment for 2-5 hours at the temperature of 300-1500 ℃;
8) acid washing, pouring the quartz ore particles treated in the step 7) into a mixed acid solution, stirring for 30-60 minutes at 50-60 ℃, filtering, washing filter residues with water until the pH value of the filtrate is 6-7 after water washing again, and collecting the filter residues;
9) and (3) flotation, namely adding the quartz ore particles subjected to acid washing into a flotation agent for flotation, wherein the flotation agent comprises the following components in parts by weight: kerosene: 50-60 parts of sodium carbonate: 15-25 parts of hexadecyl dimethyl benzyl ammonium chloride: 5-10 parts of nonylphenol polyoxyethylene ether: 10-15 parts of ethylene glycol ethyl ether: 5-10 parts of ethanol: 5-10 parts of a coupling agent: 1-5 parts of a surfactant: 1-5 parts;
10) washing, namely washing the filter residue after the acid washing by using deionized water;
11) and drying to obtain the high-purity quartz powder.
2. The coupling purification process for producing high-purity quartz powder according to claim 1, characterized in that quartz ore with a silica grade of not less than 95% and an average diameter of 2-5 mm after crushing is selected in step 1).
3. The coupled purification process for producing high-purity quartz powder according to claim 1, wherein in the step 5), alumina balls or zirconia balls with the diameter of 25-35 mm are adopted for ball milling the quartz ore in a ball mill.
4. The coupled purification process for producing high-purity quartz powder according to claim 1, wherein the mixed acid solution used in step 8) comprises the following components in parts by weight: hydrochloric acid: 50-60 parts of phosphoric acid: 10-15 parts of N, N-dimethylformamide: 5-10 parts of persulfate: 5-10 parts of a surfactant: 1-5 parts of corrosion inhibitor: 1-5 parts of deionized water: 80-100 parts.
5. The coupled purification process for producing high-purity quartz powder as claimed in claim 4, wherein the surfactant in step 8) is fatty alcohol-polyoxyethylene ether.
6. The coupled purification process for producing high-purity quartz powder according to claim 4, wherein the corrosion inhibitor in step 8) is polyethylene glycol.
7. The coupled purification process for producing high-purity quartz powder according to claim 1, wherein the surfactant in step 9) is sodium dodecylbenzenesulfonate.
8. The coupled purification process for producing high purity quartz powder according to claim 1, wherein the coupling agent in step 9) is KH 550.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011571454.6A CN112723363A (en) | 2020-12-27 | 2020-12-27 | Coupling purification process for producing high-purity quartz powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011571454.6A CN112723363A (en) | 2020-12-27 | 2020-12-27 | Coupling purification process for producing high-purity quartz powder |
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| CN112723363A true CN112723363A (en) | 2021-04-30 |
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| CN202011571454.6A Pending CN112723363A (en) | 2020-12-27 | 2020-12-27 | Coupling purification process for producing high-purity quartz powder |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03153542A (en) * | 1989-11-13 | 1991-07-01 | Tosoh Corp | Production of purified quartz powder |
| CN101503194A (en) * | 2009-03-02 | 2009-08-12 | 申士富 | Preparation of active high purity silica flour |
| CN104556047A (en) * | 2014-12-23 | 2015-04-29 | 江苏泽龙石英有限公司 | Production process for preparing high-purity quartz powder from quartzite |
| CN107915231A (en) * | 2017-11-22 | 2018-04-17 | 连云港浩森矿产品有限公司 | A kind of method and quartz calcining furnace that glass sand is prepared using vein quartz environmental protection |
| CN108545748A (en) * | 2018-03-28 | 2018-09-18 | 滁州方大矿业发展有限公司 | A kind of production method of the high-silicon quartzite powder of marble making |
| CN111298981A (en) * | 2019-12-25 | 2020-06-19 | 北京矿冶科技集团有限公司 | Molybdenum ore flotation collector and preparation method and beneficiation process thereof |
-
2020
- 2020-12-27 CN CN202011571454.6A patent/CN112723363A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03153542A (en) * | 1989-11-13 | 1991-07-01 | Tosoh Corp | Production of purified quartz powder |
| CN101503194A (en) * | 2009-03-02 | 2009-08-12 | 申士富 | Preparation of active high purity silica flour |
| CN104556047A (en) * | 2014-12-23 | 2015-04-29 | 江苏泽龙石英有限公司 | Production process for preparing high-purity quartz powder from quartzite |
| CN107915231A (en) * | 2017-11-22 | 2018-04-17 | 连云港浩森矿产品有限公司 | A kind of method and quartz calcining furnace that glass sand is prepared using vein quartz environmental protection |
| CN108545748A (en) * | 2018-03-28 | 2018-09-18 | 滁州方大矿业发展有限公司 | A kind of production method of the high-silicon quartzite powder of marble making |
| CN111298981A (en) * | 2019-12-25 | 2020-06-19 | 北京矿冶科技集团有限公司 | Molybdenum ore flotation collector and preparation method and beneficiation process thereof |
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