CN109911903A - A kind of purifying technique of quartz sand - Google Patents
A kind of purifying technique of quartz sand Download PDFInfo
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- CN109911903A CN109911903A CN201711321535.9A CN201711321535A CN109911903A CN 109911903 A CN109911903 A CN 109911903A CN 201711321535 A CN201711321535 A CN 201711321535A CN 109911903 A CN109911903 A CN 109911903A
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- quartz sand
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Abstract
A kind of purifying technique of quartz sand, including crushing, desliming, drying, multi-stage magnetic separation, multistage flotation and acidleach, quartz sand is sequentially placed into the magnetic separator of different magnetic field intensity, magnetic field strength is successively controlled in 20-100mT, 100-300mT, 300-500mT, 600-800mT, realizes multi-stage magnetic separation；Again by quartz sand put into pH value be 2-4, pH value is in the flotation device of 6-7, realize multistage flotation.The present invention effectively removes the impurity in quartz sand using multi-stage magnetic separation and multistage flotation according to the characteristic of quartz sand ore, improves the purity of quartz sand, and design rationally, improves purification precision, the production especially suitable for glass sand.
Description
Technical field
The present invention relates to a kind of quartz sand processing technology, in particular to a kind of purifying technique of quartz sand.
Background technique
Quartz sand is a kind of nonmetallic mineral, is a kind of hard, wear-resisting, stable chemical performance silicate mineral,
Main mineral constituent is SiO2, and the color of quartz sand is milky or semi-transparent clear shape, and hardness 7, quartz sand is important
Industrial mineral raw material, non-chemical dangerous material, be widely used in glass, casting, ceramics and refractory material, smelting duriron, flux for metallurgy,
The industry such as metallurgy, building, chemical industry, plastics, rubber, abrasive material.
The method of purification of existing quartz sand is mainly pickling, if rely solely on pickling, is difficult to remove and contain in quartz sand
Impurity causes product unqualified, it is more difficult to obtain high-precision quartz sand.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide it is a kind of design rationally, user
Just, the purifying technique of the quartz sand of quartz sand purity is improved.
The technical problem to be solved by the present invention is to what is realized by technical solution below, the present invention is a kind of quartz
The purifying technique of sand, its main feature is that, specific step is as follows
1) it crushes: quartz sand ore being crushed to 5-15mm fritter, then by grinding, be crushed to 0.3mm hereinafter, quartz is made
Sand；
2) using the shale and moisture in agitating device removal quartz sand, the quartz sand after desliming desliming, drying: is placed in drying
It is dried in machine, drying temperature is 100-300 DEG C, is dried 3-5 hours；
3) multi-stage magnetic separation: first the quartz sand obtained in step 2 is sequentially placed into the magnetic separator of different magnetic field intensity, magnetic field is strong
Degree is successively controlled in 20-100mT, 100-300mT, 300-500mT, 600-800mT；
4) multistage flotation: the quartz sand obtained in step 3) is put into the flotation device for being 2-4 to pH value, foaming agent is added, is reacted
After 20-30min, it is that foaming agent is added in another flotation device of 6-7 by quartz sand sucking pH value, reacts 10-20min；
5) acidleach: the quartz sand obtained in step 4) is added in mixed acid, at 90 DEG C after leaching 2-5 hours, washing
To neutrality, drying, then magnetic separation, then dry, quartz sand finished product is made.
What the technical problems to be solved by the invention can also be realized by technical solution below, the mixed acid
It is made of sulfuric acid and hydrochloric acid according to mass ratio for 2-5:1.
What the technical problems to be solved by the invention can also be realized by technical solution below, sulfuric acid and hydrochloric acid
Mass ratio is 3:2.
What the technical problems to be solved by the invention can also be realized by technical solution below, the magnetic in step 5)
Selecting intensity is 1000-2000mT.
What the technical problems to be solved by the invention can also be realized by technical solution below, the baking in step 2
Dry temperature is 200 DEG C.
What the technical problems to be solved by the invention can also be realized by technical solution below, the foaming agent
It is made of the weight percent of following material: cyclohexanol 50-70%, cyclohexanone 5-8%, diethylene adipate 10-15%, 4- first
- 3 pentenone of base-[2] 10-20%.
Compared with prior art, the present invention is according to the characteristic of quartz sand ore, using multi-stage magnetic separation and multistage flotation, effectively
The impurity in quartz sand is removed, the purity of quartz sand is improved, design rationally, improves purification precision, especially suitable for high-purity
Spend the production of quartz sand.
Specific embodiment
The specific technical solution of the present invention is further described, in order to which those skilled in the art is further understood that this hair
It is bright, without constituting the limitation to its right.
Embodiment 1, a kind of purifying technique of quartz sand, specific step is as follows,
1) it crushes: quartz sand ore being crushed to 5mm fritter, then by grinding, be crushed to 0.3mm hereinafter, quartz sand is made；
2) using the shale and moisture in agitating device removal quartz sand, the quartz sand after desliming desliming, drying: is placed in drying
It is dried in machine, drying temperature is 100 DEG C, is dried 3 hours；
3) multi-stage magnetic separation: first the quartz sand obtained in step 2 is sequentially placed into the magnetic separator of different magnetic field intensity, magnetic field is strong
Degree is successively controlled in 20mT, 100mT, 300mT, 600mT；
4) multistage flotation: the quartz sand obtained in step 3) is put into the flotation device for being 2 to pH value, foaming agent is added, is reacted
After 20min, in another flotation device for being 6 by quartz sand sucking pH value, foaming agent is added, reacts 10min；
5) acidleach: the quartz sand obtained in step 4) is added in mixed acid, at 90 DEG C after leaching 2-5 hours, washing
To neutrality, drying, then magnetic separation, then dry, quartz sand finished product is made.
Embodiment 2, a kind of purifying technique of quartz sand, specific step is as follows
1) it crushes: quartz sand ore being crushed to 15mm fritter, then by grinding, be crushed to 0.3mm hereinafter, quartz sand is made；
2) using the shale and moisture in agitating device removal quartz sand, the quartz sand after desliming desliming, drying: is placed in drying
It is dried in machine, drying temperature is 300 DEG C, is dried 5 hours；
3) multi-stage magnetic separation: first the quartz sand obtained in step 2 is sequentially placed into the magnetic separator of different magnetic field intensity, magnetic field is strong
Degree is successively controlled in 100mT, 300mT, 500mT, 800mT；
4) multistage flotation: the quartz sand obtained in step 3) is put into the flotation device for being 4 to pH value, foaming agent is added, is reacted
After 30min, in another flotation device for being 7 by quartz sand sucking pH value, foaming agent is added, reacts 20min；
5) acidleach: the quartz sand obtained in step 4) is added in mixed acid, at 90 DEG C after leaching 2-5 hours, washing
To neutrality, drying, then magnetic separation, then dry, quartz sand finished product is made.
Embodiment 3, a kind of purifying technique of quartz sand, specific step is as follows
1) it crushes: quartz sand ore being crushed to 10mm fritter, then by grinding, be crushed to 0.3mm hereinafter, quartz sand is made；
2) using the shale and moisture in agitating device removal quartz sand, the quartz sand after desliming desliming, drying: is placed in drying
It is dried in machine, drying temperature is 200 DEG C, is dried 4 hours；
3) multi-stage magnetic separation: first the quartz sand obtained in step 2 is sequentially placed into the magnetic separator of different magnetic field intensity, magnetic field is strong
Degree is successively controlled in 50mT, 200mT, 400mT, 700mT；
4) multistage flotation: the quartz sand obtained in step 3) is put into the flotation device for being 3 to pH value, foaming agent is added, is reacted
After 25min, in another flotation device for being 7 by quartz sand sucking pH value, foaming agent is added, reacts 15min；
5) acidleach: the quartz sand obtained in step 4) is added in mixed acid, and at 90 DEG C after leaching 3 hours, washing is extremely
Neutrality, drying, then magnetic separation, then dry, quartz sand finished product is made.
Embodiment 4, the purifying technique of quartz sand described in embodiment 1-3, the mixed acid by sulfuric acid and hydrochloric acid according to
Mass ratio is 2:1 composition.
Embodiment 5, the purifying technique of quartz sand described in embodiment 1-3, the mixed acid by sulfuric acid and hydrochloric acid according to
Mass ratio is 5:1 composition.
The mass ratio of embodiment 6, the purifying technique of quartz sand described in embodiment 1-3, sulfuric acid and hydrochloric acid is 3:2.
Embodiment 7, the purifying technique of quartz sand described in embodiment 1-6, the magnetic separation strength in step 5) is 1000mT.
Embodiment 8, the purifying technique of quartz sand described in embodiment 1-6, the magnetic separation strength in step 5) is 2000mT.
Embodiment 9, the purifying technique of quartz sand described in embodiment 1-6, the magnetic separation strength in step 5) is 1500mT.
Embodiment 10, the purifying technique of quartz sand described in embodiment 1-9, the drying temperature in step 2 is 200 DEG C.
Embodiment 11, the purifying technique of quartz sand described in embodiment 1-9, the foaming agent by following material weight
Percentage composition: cyclohexanol 50%, cyclohexanone 5%, diethylene adipate 10%, 4- methyl -3 pentenone-[2] 10%.
Embodiment 12, the purifying technique of quartz sand described in embodiment 1-9, the foaming agent by following material weight
Percentage composition: cyclohexanol 70%, cyclohexanone 8%, diethylene adipate 15%, 4- methyl -3 pentenone-[2] 20%.
Embodiment 13, the purifying technique of quartz sand described in embodiment 1-9, the foaming agent by following material weight
Percentage composition: cyclohexanol 60%, cyclohexanone 7%, diethylene adipate 12%, 4- methyl -3 pentenone-[2] 15%.
Claims (6)
1. a kind of purifying technique of quartz sand, it is characterised in that: specific step is as follows
1) it crushes: quartz sand ore being crushed to 5-15mm fritter, then by grinding, be crushed to 0.3mm hereinafter, quartz is made
Sand；
2) using the shale and moisture in agitating device removal quartz sand, the quartz sand after desliming desliming, drying: is placed in drying
It is dried in machine, drying temperature is 100-300 DEG C, is dried 3-5 hours；
3) multi-stage magnetic separation: first the quartz sand obtained in step 2 is sequentially placed into the magnetic separator of different magnetic field intensity, magnetic field is strong
Degree is successively controlled in 20-100mT, 100-300mT, 300-500mT, 600-800mT；
4) multistage flotation: the quartz sand obtained in step 3) is put into the flotation device for being 2-4 to pH value, foaming agent is added, is reacted
After 20-30min, it is that foaming agent is added in another flotation device of 6-7 by quartz sand sucking pH value, reacts 10-20min；
5) acidleach: the quartz sand obtained in step 4) is added in mixed acid, at 90 DEG C after leaching 2-5 hours, washing
To neutrality, drying, then magnetic separation, then dry, quartz sand finished product is made.
2. purifying technique according to claim 1, it is characterised in that: the mixed acid is by sulfuric acid and hydrochloric acid according to quality
Than being formed for 2-5:1.
3. purifying technique according to claim 2, it is characterised in that: the mass ratio of sulfuric acid and hydrochloric acid is 3:2.
4. purifying technique according to claim 1, it is characterised in that: the magnetic separation strength in step 5) is 1000-2000mT.
5. purifying technique according to claim 1, it is characterised in that: the drying temperature in step 2 is 200 DEG C.
6. purifying technique according to claim 1, it is characterised in that: the foaming agent by following material weight percent
Than composition: cyclohexanol 50-70%, cyclohexanone 5-8%, -3 pentenone of diethylene adipate 10-15%, 4- methyl-[2] 10-
20%.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669486A (en) * | 2019-10-10 | 2020-01-10 | 北京大德广源石油技术服务有限公司 | Enhanced gas production material for comprehensive treatment of gas well and preparation method thereof |
| CN110697722A (en) * | 2019-10-31 | 2020-01-17 | 青川英华矿业有限公司 | Silica sand preparation process |
| CN110734068A (en) * | 2019-11-01 | 2020-01-31 | 四川省青川红源石业有限责任公司 | Preparation method of high-purity quartz sand |
| CN112456502A (en) * | 2020-12-16 | 2021-03-09 | 新沂市中大石英科技有限公司 | Preparation process of high-efficiency, energy-saving and environment-friendly high-purity quartz sand |
| CN112744819A (en) * | 2019-10-31 | 2021-05-04 | 青川县云龙麒达石英砂有限责任公司 | Preparation method of high-purity quartz sand |
| CN114713508A (en) * | 2022-04-06 | 2022-07-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving TFe grade of vanadium-containing iron ore concentrate |
-
2017
- 2017-12-12 CN CN201711321535.9A patent/CN109911903A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669486A (en) * | 2019-10-10 | 2020-01-10 | 北京大德广源石油技术服务有限公司 | Enhanced gas production material for comprehensive treatment of gas well and preparation method thereof |
| CN110697722A (en) * | 2019-10-31 | 2020-01-17 | 青川英华矿业有限公司 | Silica sand preparation process |
| CN112744819A (en) * | 2019-10-31 | 2021-05-04 | 青川县云龙麒达石英砂有限责任公司 | Preparation method of high-purity quartz sand |
| CN110734068A (en) * | 2019-11-01 | 2020-01-31 | 四川省青川红源石业有限责任公司 | Preparation method of high-purity quartz sand |
| CN112456502A (en) * | 2020-12-16 | 2021-03-09 | 新沂市中大石英科技有限公司 | Preparation process of high-efficiency, energy-saving and environment-friendly high-purity quartz sand |
| CN114713508A (en) * | 2022-04-06 | 2022-07-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving TFe grade of vanadium-containing iron ore concentrate |
| CN114713508B (en) * | 2022-04-06 | 2023-06-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving TFe grade of vanadium-containing iron concentrate |
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