CN103480498A - Method for flotation separation of calcite from pulvistalci - Google Patents
Method for flotation separation of calcite from pulvistalci Download PDFInfo
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- CN103480498A CN103480498A CN201310475772.6A CN201310475772A CN103480498A CN 103480498 A CN103480498 A CN 103480498A CN 201310475772 A CN201310475772 A CN 201310475772A CN 103480498 A CN103480498 A CN 103480498A
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Abstract
The invention discloses a method for flotation separation of calcite from pulvistalci. The method for flotation separation of the calcite from the pulvistalci is characterized by comprising the following steps that firstly, primary selection is conducted on raw ore, impurities are eliminated, and breakage is conducted; secondly, the broken raw ore is added to a bal mill, and grinding is conducted; thirdly, ore pulp is added to an ore pulp agitator, a catching agent is added, the concentration of the catching agent is 1%, and the addition amount of the catching agent is 0.02% of the solid content of the ore pulp; fourthly, the ore pulp is added to a flotation cell so that flotation can be conducted, the mode of one primary selection stage, one scavenging stage and three fine selection stages is applied to flotation, and a depressor and a foaming agent are added when the primary selection stage is conducted; fifthly, when each fine selection stage is conducted, the addition amount of the depressor is gradually reduced to 150ml per minute, 100ml per minute and 50ml per minute, and the foaming agent is not added; sixthly, in the scavenging stage, the addition amount of the foaming agent is 50 drops per minute, the addition amount of the catching agent is 150ml/min, filter pressing and drying are conducted after flotation is completed, and then high-quality pulvistalci is prepared. The talc content of the pulvistalci prepared according to the method is over 88%, and the CaO content is reduced to 4%-5%.
Description
Technical field
The present invention relates to chemical technology field, relate in particular to a kind of method that in talcum powder, Calcite by Flotation is separated.
Background technology
The English by name PULVISTALCI of talcum powder, for white or off-white color, fine, without the powder of grittiness, hand touches with greasy feeling.Odorless, tasteless.This product is not all dissolved in water, the acid of rare ore deposit or rare alkali hydroxide solution.Can do medicinal.
The talcum main component is the moisture magnesium silicate of talcum, and molecular formula is MM
3[Si
4o
10] (OH)
2.Talcum belongs to monoclinic system.Crystal is the sheet of false six sides or rhombus, accidental.Be generally fine and close bulk, foliaceous, radial, fibrous agrregate.Water white transparency or white, but because containing a small amount of impurity, presenting even light red of light green, pale yellow, shallow palm fibre; Be pearly luster on cleavage surface.Hardness 1, proportion 2.7～2.8.
Good physics, the chemical characteristics such as talcum has lubricity, anti-sticks, helps that stream, fire resistance, acid-resisting, insulating properties, high, the chemical property of fusing point torpescence, covering power are good, softness, good luster, absorption affinity are strong, because the crystal structure of talcum is stratiform, so there is the trend that easily splits into scale and special slip, if Fe
2o
3content very highly can lower its insulating properties.
Talcum at Zhong， Shandong, talcum resource ore deposit, a few place of China and Mianning, sichuan Province belongs to sheet whiten stone, and it is often together with the calcite association, and Cao content is 23～27%, and this has affected the quality of talcum.Because calcium oxide content is higher, the performances such as the transparency of talcum, chemical inertness are caused to larger impact.It can not be applied on high-end plastics, paint, pottery, also affect price and the market prospects of talcum.
Summary of the invention
In order to solve the problem that the talcum powder calcium oxide content is high, the invention provides a kind of method that in talcum powder, Calcite by Flotation is separated.
In order to solve above technical problem, the technical scheme that the present invention takes is:
In order to reduce the content of calcite in talcum, improve quality and the market added value of talc product, research and development centre of company carries out a large amount of experiments.According to the not identical characteristics of some physical property of calcite and talcum, and the character of talcum itself is nonpolar and has hydrophobic characteristics, and in conjunction with various factors such as production costs, we determine to adopt floatation process.
First raw ore is carried out to fragmentation, through ball mill, carry out grinding, regulate suitable pulp density, then enter flotation cell and carry out flotation, through one roughing, triple cleaning, after once purging selection, obtain CaO content in concentrate and be reduced to 4% left and right, mine tailing is due to the talcum that also contains 10%, and CaO content is higher, so after carrying out the press filtration oven dry, can sell the producer of doing coating, be good raw material.
Concrete steps are as follows:
(1) raw ore under mine is adopted carries out primary election, removes comparatively significantly impurity, to guarantee the presentation quality of raw ore as far as possible, reduces the impact on the ore whiteness.
(2) raw ore enters disintegrating machine and carries out fragmentation, requires granularity to be less than 2cm.
(3) measure batcher through broken raw ore by disk and enter ball mill.Ball mill is two-part, and what its liner plate and ball adopted is all the higher and wear-resisting high aluminium ball of whiteness, very high because talc product requires whiteness, if adopt common rare earth steel ball and liner plate, whiteness and the chemical composition of talcum is polluted, and affects product quality.High aluminium ball is ∮ 60mm to the maximum, minimum ∮ 12mm, and first paragraph is all used ball, and second segment is that ball and section are mixed.It is 15～20% that the ore pulp that grinding goes out requires its concentration, and granularity D50 is the 350-450 order, preferably 400 orders.
(4) ore pulp that grinding is good enters flotation cell, and flotation cell adopts the SF type.Flotation adopts a first pattern that sweeps three essences.
At first, add the collecting agent lauryl amine in the flowsheet of slurry agitation bucket, its concentration is 1%, and addition is 0.02% of its ore pulp solid content, then enters primary election.
Just selections need add inhibitor carboxymethyl cellulose, foaming agent MIBC(methyl isobutyl carbinol simultaneously), the concentration of carboxymethyl cellulose is mixed with 1～2%, because its viscosity is larger, is difficult for compounding high concentration, to result in blockage, its addition is 200～300ml/ minute.Foaming agent stoste, 50～60 droplets/minute of its additions (blood transfusion tube is standard).
At every section, when selected, the inhibitor carboxymethyl cellulose progressively is decremented to 150ml per minute, 100ml, 50ml, and foaming agent MIBC can no longer add.
In the section of scanning, the foaming agent addition is 50 droplets/minute, and collecting agent lauryl amine addition is 150ml/ minute.
In whole floatation process process, the addition of foaming agent MIBC is very crucial, adds too much, and the groove that easily overflows, add less, affects the rate of recovery of technique.Collecting agent must really be added, and because lauryl amine dissolubility in the water lower than 25 ℃ is poor, easily forms precipitation, so be not easy to add when temperature is too low, its solution temperature must remain on more than 25 ℃, in order to avoid affect the quality of concentrate.
Good effect of the present invention is as follows:
The method that in talcum powder of the present invention, Calcite by Flotation is separated, have that cost is low, technique is simple, safety and environmental protection, can well reduce calcium oxide content, the talcum powder talc content that adopts this law to prepare is more than 88%, wherein the content of CaO is reduced to 4～5%, be applicable to industrial mass production, so there is huge economic worth and social effect.
The specific embodiment
The following examples are to describe in further detail of the present invention.
Embodiment 1
(1) at first the raw ore under adopt on mountain is carried out to primary election, remove impurity, then with disintegrating machine, carry out fragmentation, make granularity be less than 2cm;
(2) raw ore after fragmentation is added in ball mill, carry out grinding, the pulp density that grinding goes out is 15-20%, and granularity D50 is at 400 orders;
(3) ore pulp is joined in the flowsheet of slurry agitation bucket, and to add collecting agent lauryl amine, the concentration of lauryl amine be 1%, addition is 0.02% of ore pulp solid content;
(4) then ore pulp is joined in flotation cell and carry out flotation, flotation cell is the SF type, ball mill is two-part, what its liner plate and ball adopted is all the higher and wear-resisting high aluminium ball of whiteness, high aluminium ball is ∮ 60mm to the maximum, minimum ∮ 12mm, first paragraph is all used ball, second segment is that ball and section are mixed, flotation adopts a first pattern that sweeps three essences, add inhibitor carboxymethyl cellulose and foaming agent methyl isobutyl carbinol in the time of primary election, the addition of carboxymethyl cellulose is 200-300ml/min, and the addition of methyl isobutyl carbinol is drip/min of 50-60;
(5) at every section when selected, carboxymethyl cellulose progressively is decremented to 150ml per minute, 100ml, 50ml, and foaming agent no longer adds;
(6) in the section of scanning, foaming agent methyl isobutyl carbinol addition is 50 droplets/minute, and collecting agent lauryl amine addition is 150ml/min, and flotation is carried out the press filtration oven dry after finishing, and can make high-quality talcum powder.In step (3) and step (6), collecting agent adds fashionable, and the temperature of solution is greater than 25 ℃.
In the talcum powder of preparation, talc content is 90% after testing, and wherein the content of CaO is reduced to 5% before comparing flotation.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claims and equivalent thereof.
Claims (8)
1. the method that in a talcum powder, Calcite by Flotation is separated, it is characterized in that: the method comprises the following steps:
(1) at first the raw ore under adopt on mountain is carried out to primary election, remove impurity, then with disintegrating machine, carry out fragmentation, make granularity be less than 2cm;
(2) raw ore after fragmentation is added in ball mill, carry out grinding, the pulp density that grinding goes out is 15-20%, and granularity D50 is at the 350-450 order;
(3) ore pulp is joined in the flowsheet of slurry agitation bucket, and add collecting agent, the concentration of collecting agent is 1%, and addition is 0.02% of ore pulp solid content;
(4) then ore pulp is joined in flotation cell and carry out flotation, flotation adopts a first pattern that sweeps three essences, adds inhibitor and foaming agent in the time of primary election, and the addition of inhibitor is 200-300ml/min, and the addition of foaming agent is drip/min of 50-60;
(5) at every section when selected, inhibitor progressively is decremented to 150ml per minute, 100ml, 50ml, and foaming agent no longer adds;
(6) in the section of scanning, the foaming agent addition is 50 droplets/minute, and the collecting agent addition is 150ml/min, and flotation is carried out the press filtration oven dry after finishing, and can make high-quality talcum powder.
2. the method for claim 1, it is characterized in that: in step (2), ball mill is two-part, what its liner plate and ball adopted is all the higher and wear-resisting high aluminium ball of whiteness, and high aluminium ball is ∮ 60mm to the maximum, minimum ∮ 12mm, first paragraph is all used ball, and second segment is that ball and section are mixed.
3. the method for claim 1, it is characterized in that: in step (3), collecting agent is lauryl amine.
4. the method for claim 1, it is characterized in that: in step (4), flotation cell is the SF type.
5. the method for claim 1, it is characterized in that: in step (4) and step (5), inhibitor is carboxymethyl cellulose, and foaming agent is methyl isobutyl carbinol.
6. the method for claim 1, it is characterized in that: in step (6), foaming agent is methyl isobutyl carbinol, and collecting agent is lauryl amine.
7. the method for claim 1, it is characterized in that: in step (2), granularity D500 is 400 orders.
8. the method for claim 1, it is characterized in that: in step (3) and step (6), collecting agent adds fashionable, and the temperature of solution is greater than 25 ℃.
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| CN201310475772.6A CN103480498B (en) | 2013-10-12 | 2013-10-12 | A kind of method that in talcum powder, Calcite by Flotation is separated |
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| CN201310475772.6A CN103480498B (en) | 2013-10-12 | 2013-10-12 | A kind of method that in talcum powder, Calcite by Flotation is separated |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964435A (en) * | 2017-06-01 | 2017-07-21 | 黄山加佳荧光材料有限公司 | A kind of superfine grinding method of fluorescent pigment |
| CN109569891A (en) * | 2018-12-19 | 2019-04-05 | 沈阳有色金属研究院有限公司 | One kind is for compound flotation collector of magnesite Counterfloatating desiliconization and preparation method thereof |
| CN110002453A (en) * | 2019-05-20 | 2019-07-12 | 大连地拓环境科技有限公司 | A kind of method of low-grade Talc Ore purification |
| CN115155791A (en) * | 2022-07-11 | 2022-10-11 | 辽宁艾海滑石有限公司 | Preparation method of talcum powder special for diesel truck tail gas purifier DPF |
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| CN86102011A (en) * | 1986-03-24 | 1987-11-11 | 冶金工业部马鞍山矿山研究院 | Flotation technology for magnesite |
| CN203140163U (en) * | 2013-04-08 | 2013-08-21 | 中国地质矿业总公司 | Talc flotation improved device |
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2013
- 2013-10-12 CN CN201310475772.6A patent/CN103480498B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN86102011A (en) * | 1986-03-24 | 1987-11-11 | 冶金工业部马鞍山矿山研究院 | Flotation technology for magnesite |
| CN203140163U (en) * | 2013-04-08 | 2013-08-21 | 中国地质矿业总公司 | Talc flotation improved device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964435A (en) * | 2017-06-01 | 2017-07-21 | 黄山加佳荧光材料有限公司 | A kind of superfine grinding method of fluorescent pigment |
| CN109569891A (en) * | 2018-12-19 | 2019-04-05 | 沈阳有色金属研究院有限公司 | One kind is for compound flotation collector of magnesite Counterfloatating desiliconization and preparation method thereof |
| CN110002453A (en) * | 2019-05-20 | 2019-07-12 | 大连地拓环境科技有限公司 | A kind of method of low-grade Talc Ore purification |
| CN115155791A (en) * | 2022-07-11 | 2022-10-11 | 辽宁艾海滑石有限公司 | Preparation method of talcum powder special for diesel truck tail gas purifier DPF |
| CN115155791B (en) * | 2022-07-11 | 2024-05-10 | 辽宁艾海滑石有限公司 | Preparation method of talcum powder special for DPF of tail gas purifier of diesel truck |
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| CN103480498B (en) | 2015-09-02 |
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Owner name: LIANGSHAN PREFECTURE XICHENG TALC MINING CO., LTD. Free format text: FORMER OWNER: MIANNING XICHENG TALC MINING CO., LTD. Effective date: 20150601 |
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Effective date of registration: 20150601 Address after: 615601, Liangshan Yi Autonomous Prefecture, Mianning province Sichuan County after Hill Applicant after: LIANG SHAN PREFECTURE XICHENG TALC MINING CO., LTD. Address before: 615601, Liangshan Yi Autonomous Prefecture, Mianning province Sichuan County after Hill Applicant before: MIANNING XICHENG TALC MINING CO., LTD. |
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Owner name: LANGSHAN PREFECTURE XINCHENG NEW MATERIAL CO., LTD Free format text: FORMER NAME: LIANGSHAN PREFECTURE XICHENG TALC MINING CO., LTD. |
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Address after: 615601, Liangshan Yi Autonomous Prefecture, Mianning province Sichuan County after Hill Patentee after: LIANGSHAN XICHENG NEW MATERIAL CO., LTD. Address before: 615601, Liangshan Yi Autonomous Prefecture, Mianning province Sichuan County after Hill Patentee before: LIANG SHAN PREFECTURE XICHENG TALC MINING CO., LTD. |
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Granted publication date: 20150902 Termination date: 20181012 |