CN86104415A - Ore dressing technology for weathered sepiolite clay - Google Patents

Ore dressing technology for weathered sepiolite clay Download PDF

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Publication number
CN86104415A
CN86104415A CN 86104415 CN86104415A CN86104415A CN 86104415 A CN86104415 A CN 86104415A CN 86104415 CN86104415 CN 86104415 CN 86104415 A CN86104415 A CN 86104415A CN 86104415 A CN86104415 A CN 86104415A
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China
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ore
concentrate
sepiolite
slurry
raw ore
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CN 86104415
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Chinese (zh)
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CN86104415B (en
Inventor
缪裕礼
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Geological Testing Center Zhejiang Prov
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Geological Testing Center Zhejiang Prov
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Priority to CN86104415A priority Critical patent/CN86104415B/en
Publication of CN86104415A publication Critical patent/CN86104415A/en
Publication of CN86104415B publication Critical patent/CN86104415B/en
Expired legal-status Critical Current

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Abstract

A kind of weathering type that is applicable to is the ore-dressing technique of the low-grade weathering type sepiolite clay of main associated mineral with talcum, quartz particularly.It comprises that raw ore adds water slurrying, and ore pulp adds the dispersant high-speed stirred and disperses, and the centrifugal sedimentation separation and the concentrate suspension of impure mineral add the filter aid filtering means dehydration.This technological advantage is that sorting pulp density height, disengaging time are short, the essence mine dehydration method is simple, and can be extensive use of on industrial production.

Description

Ore Dressing technology for weathered sepiolite clay
The present invention is relevant ore Dressing technology for weathered sepiolite clay, and it is specially adapted to the ore dressing as the low-grade weathering type sepiolite clay of main associated mineral such as talcum, quartz.
Weathering type sepiolite clay original soil, usually association has other mineral, goes to toward removing these impure minerals being delivered for use.Because sepiolite is a kind of fibrous mineral, under the effect of high shear force, it is easy to form steady suspension in water, so can remove impure mineral in the sepiolite clay with natural sedimentation, this point has obtained proving in many laboratories.In Japan Patent JP80047937 basically also with the natural sedimentation sepiolite group mineral of purifying.But, because the ore pulp viscosity with the sepiolite clay preparation is higher, and along with the increase viscosity of sepiolite clay content in the ore pulp obviously increases, and associated mineral granularity wherein is trickle, separate associated mineral in the sepiolite clay with natural sedimentation, not only used pulp density is low but also the time that sedimentation is required is long, water consumption is big, and the solid content of gained concentrate suspension generally has only 2-5%.And practice shows that the filtration of this concentrate suspension is very difficult, thereby has limited natural sedimentation being extensive use of on industrial production.
The objective of the invention is to propose that a kind of sorting pulp density height, disengaging time are short, the essence mine dehydration method is simple, and can be on industrial production the ore-dressing technique of widely used weathering type sepiolite clay.
At first weathering type sepiolite clay raw ore is added water, make the ore pulp that solid content is 20-33%; Add dispersant polymetaphosphate salt (its consumption is generally the 0.1-1.0% of raw ore weight, and wiring solution-forming uses) again; And in the higher mixer of shearing force, stir, the linear velocity of Agitator Impeller with the 8-28 meter per second for well, mixing time also will be controlled, and the impure mineral in sepiolite and its raw ore is fully scattered, and can not make the ore pulp viscosity increased influence separating effect because of mixing time is oversize again; Raw ore slurry through fine dispersion, enter the centrifuge that separation factor can reach 500-3500, under the effect of centrifugal force field, impure mineral in the ore pulp just very fast sedimentation is a mine tailing, scpiolitc then still is in suspended state basically, thereby realized separation, the disengaging time of ore pulp in centrifuge is generally 20-60 second; The sepiolite concentrate suspension of separating from centrifuge (being concentrate slurry) adds filter aid quick lime (its consumption is generally the 1-3% of solid concentrate amount, generally is made into milk of lime and uses) mixing; Be that available filter press filters, the gained filter cake is exactly a solid shape sepiolite concentrate product.This product also needs through air dry or low temperature drying, and pulverizes, and just becomes final products.
Remarkable advantage of the present invention is to adopt the centrifugal sedimentation method that sepiolite is separated with impure mineral, and separating rate is fast, good separation effect.Because pulp density height when separating, the solid content of gained concentrate slurry is also just high, has reduced the dehydrating amount of concentrate again, thereby has created condition for the dehydration problem that solves on the sepiolite concentrate slurry industrial production.And the filter aid that this technology is used improves the strainability of sepiolite concentrate slurry greatly, so that can use this simple and economic dewatering of plate and frame filter press press filtration.It is effective especially as the weathering type sepiolite clay of main associated mineral with talcum, quartz etc. to use this technology to be used for sorting, even the raw ore that grade is very low, also can isolate the very high concentrate of sepiolite content, thereby make a large amount of low-grade sepiolite clay resources that can not directly be utilized originally obtain development and use for industry.
Mineral processing circuit of the present invention is seen accompanying drawing
Embodiment:
1, sepiolite content in Leping, Jiangxi is 30%, with talcum and quartzy weathering type sepiolite clay raw ore as main associated mineral, adding water, to make solid content be 24% ore pulp, adds the sodium hexametaphosphate dispersant of raw ore weight 0.3% then, and disperseed 6 minutes in high speed dispersor.It is 1800 WL-200 horizontal screw centrifuge that ore pulp after the dispersion promptly enters separation factor, and when the feed flow was 180 kilograms/hour, the productive rate of gained concentrate can reach 28%, and sepiolite content reaches 90%.Concentrate slurry adopts the method that adds the mixing of filter aid quick lime to carry out filtering means dehydration.
2, sepiolite content in Leping, Jiangxi is 18%, with quartzy, talcum is the weathering type sepiolite clay raw ore of main associated mineral, add water slurrying, add the calgon of raw ore weight 0.3% then and in high speed dispersor, disperse, ore pulp after the dispersion is with four pipe centrifuge centrifugations, when separation factor is 2000, the concentrate slurry of gained after filtration, drying, measure concentrate sepiolite content with x-ray diffraction method and reach 88%, productive rate is 17.5%.
3, liuyang hunan is that main associated mineral, sepiolite content are 19% weathering type sepiolite clay raw ore with talcum, adding water, to make solid content be 33% ore pulp, the calgon that adds 3 kilograms/ton (to raw ores) then, and in high speed dispersor, disperse, the ore pulp after the dispersion is with four pipe centrifuge centrifugations, when separation factor is 2000, the concentrate slurry of gained after filtration, the oven dry, record with infra-red sepectrometry, concentrate sepiolite content reaches 80%, and concentrate yield is 15.4%.

Claims (5)

1, a kind of ore-dressing technique that is applicable to the weathering type sepiolite clay, it comprises that raw ore slurrying, concentrate slurry filters, feature of the present invention be add dispersant in the raw ore slurry and in the higher mixer of shearing force dispersed with stirring, centrifugal sedimentation separates, adds filter aid and mix with concentrate slurry in centrifuge.
2, ore-dressing technique according to claim 1 is characterized in that adding in the raw ore slurry dispersant, and this dispersant is many Ju Pian Ling hydrochlorate of raw ore weight 0.1-1.0%.
3, according to claim 1,2 described ore-dressing techniques, the linear velocity that it is characterized in that the high shear force Agitator Impeller is the 8-28 meter per second.
4, according to claim 1,2 described ore-dressing techniques, the separation factor that it is characterized in that centrifuge is 500-3500.
5, ore-dressing technique according to claim 1 is characterized in that adding consumption in the sepiolite concentrate slurry suspension that centrifugation is come out is the filter aid quick lime of solid concentrate weight 1-3%.
CN86104415A 1986-07-01 1986-07-01 Ore dressing technology for weathered sepiolite clay Expired CN86104415B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN86104415A CN86104415B (en) 1986-07-01 1986-07-01 Ore dressing technology for weathered sepiolite clay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN86104415A CN86104415B (en) 1986-07-01 1986-07-01 Ore dressing technology for weathered sepiolite clay

Publications (2)

Publication Number Publication Date
CN86104415A true CN86104415A (en) 1987-06-24
CN86104415B CN86104415B (en) 1988-12-28

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CN86104415A Expired CN86104415B (en) 1986-07-01 1986-07-01 Ore dressing technology for weathered sepiolite clay

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CN (1) CN86104415B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829479A (en) * 2010-05-31 2010-09-15 赵溶 Hollow glass desiccant and production method thereof
CN101288857B (en) * 2007-04-20 2011-03-16 湖南鸿雁海泡石科技有限公司 Sepiolite purification technique
CN102716800A (en) * 2012-06-15 2012-10-10 中国矿业大学(北京) Sepiolite benefication purifying method
CN102974449A (en) * 2011-09-02 2013-03-20 康明克斯(北京)机电设备有限公司 Separator of clay block-mud and separation method of clay block-mud
CN103332804A (en) * 2013-06-05 2013-10-02 云南文山铝业有限公司 Solid-liquid separation method for tailing pulp
CN103979555A (en) * 2014-06-01 2014-08-13 许盛英 Acidized sepiolite clay
CN103979558A (en) * 2014-06-01 2014-08-13 许盛英 Sodium modified sepiolite clay
CN112191679A (en) * 2020-10-15 2021-01-08 湘潭海泡石科技有限公司 Restoration method suitable for hexavalent chromium contaminated soil

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101288857B (en) * 2007-04-20 2011-03-16 湖南鸿雁海泡石科技有限公司 Sepiolite purification technique
CN101829479B (en) * 2010-05-31 2012-11-14 赵溶 Hollow glass desiccant and production method thereof
CN101829479A (en) * 2010-05-31 2010-09-15 赵溶 Hollow glass desiccant and production method thereof
CN104815747A (en) * 2011-09-02 2015-08-05 康明克斯(北京)机电设备有限公司 Clay block and slurry separator and separation method
CN102974449A (en) * 2011-09-02 2013-03-20 康明克斯(北京)机电设备有限公司 Separator of clay block-mud and separation method of clay block-mud
CN102974449B (en) * 2011-09-02 2015-04-15 康明克斯(北京)机电设备有限公司 Separator of clay block-mud and separation method of clay block-mud
CN102716800A (en) * 2012-06-15 2012-10-10 中国矿业大学(北京) Sepiolite benefication purifying method
CN103332804A (en) * 2013-06-05 2013-10-02 云南文山铝业有限公司 Solid-liquid separation method for tailing pulp
CN103979555A (en) * 2014-06-01 2014-08-13 许盛英 Acidized sepiolite clay
CN103979558A (en) * 2014-06-01 2014-08-13 许盛英 Sodium modified sepiolite clay
CN103979558B (en) * 2014-06-01 2016-05-11 许盛英 Sepiolite clay after sodium
CN103979555B (en) * 2014-06-01 2016-05-18 许盛英 Sepiolite clay after acidifying
CN112191679A (en) * 2020-10-15 2021-01-08 湘潭海泡石科技有限公司 Restoration method suitable for hexavalent chromium contaminated soil

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