CN86104415B - Ore dressing technology for weathered sepiolite clay - Google Patents
Ore dressing technology for weathered sepiolite clay Download PDFInfo
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- CN86104415B CN86104415B CN86104415A CN86104415A CN86104415B CN 86104415 B CN86104415 B CN 86104415B CN 86104415 A CN86104415 A CN 86104415A CN 86104415 A CN86104415 A CN 86104415A CN 86104415 B CN86104415 B CN 86104415B
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Abstract
The present invention relates to an ore dressing process suitable for weathering type sepiolite clay, particularly to for low-grade weathering type sepiolite clay using talc and quartz as main accompanying minerals. The present invention comprises the steps that water is added to crude ore to produce pulp, dispersing agents are added to the ore pulp, the ore pulp is stirred and dispersed at high speed, impurity minerals are centrifugally settled and separated, and filter aids are added to the suspension of ore concentrate to filter and dehydrate the ore concentrate. The process has the advantages of high concentration of the sorted ore pulp, short separation time and simple method for dehydrating the ore concentrate, and can be widely used for industrial production.
Description
The present invention relates to the beneficiation method in a kind of sepiolite clay ore deposit, particularly relate to a kind of with the beneficiation method as the low-grade weathering type sepiolite clay ore deposit of main associated mineral such as talcum, quartz.
Weathering type sepiolite clay raw ore, 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 ore deposit with natural sedimentation, this point has obtained proving in many laboratories.In Japan Patent JP80047937 basically also with the natural sedimentation sepiolite class mineral of purifying.But, because the viscosity with sepiolite clay ore deposit preparation ore pulp is higher, and along with the increase of sepiolite clay mineral content in the ore pulp, its viscosity obviously increases, fine because of wherein associated mineral granularity again, so separate associated mineral in the sepiolite clay ore deposit with natural sedimentation, the time that not only used pulp density is low but also sedimentation is required is long, water consumption is big, and the solid content of gained concentrate suspension (being pulp density) 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 purpose of this invention is to provide 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 beneficiation method in widely used weathering type sepiolite clay ore deposit.
At first weathering type sepiolite clay raw ore is added water, make concentration and be 20～33% ore pulp; And adding dispersant polymetaphosphate salt (its consumption is generally 0.1～1.0% of raw ore weight, and wiring solution-forming uses); In the higher mixer of shearing force, stir again, the linear velocity of Agitator Impeller with 8～28 meter per seconds 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; Through the raw ore slurry of fine dispersion, enter separation factor and can reach 500～3500 centrifuge, under the effect of centrifugal force field, the impure mineral in the ore pulp can very fast sedimentation be a mine tailing just, scpiolitc then still is in suspended state basically, thereby has realized separation; 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, and 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 concentration of gained concentrate slurry is also just high, has reduced the essence mine dehydration amount again, thereby has created condition for the dehydration problem that solves on the sepiolite concentrate slurry industrial production.And the filter aid that uses in this method 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.Use this method to come sorting effective especially as the weathering type sepiolite clay ore deposit of main associated mineral with talcum, quartz etc., 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 ore resources that can not directly be utilized originally obtain development and use for industry.
Fig. 1 is mineral processing circuit figure of the present invention.
Describe the present invention below in conjunction with Fig. 1.
1, get Leping, Chinese Jiangxi sepiolite content and be 30% weathering type sepiolite clay raw ore 1, adding water 2, to make concentration in pulper 3 be 24% ore pulp, and be incorporated as the sodium hexametaphosphate dispersant 4 of raw ore weight 0.3%, dispersed with stirring in dispersion machine 5 again, ore pulp after the dispersion enters centrifuge 6 to be separated, under the effect of centrifugal force field, impure mineral in raw ore sedimentation basically is a mine tailing 8, scpiolitc then is suspended in the concentrate slurry 7 basically, then the concentrate slurry 7 of gained being added filter aid quick lime 9 mixes in mixing apparatus 10, use filter press 11 filter-press dehydrations again, promptly get sepiolite concentrate filter cake 12 and waste water 13.When the separation factor of centrifuge was 1800, the productive rate of gained sepiolite concentrate reached 28%, and sepiolite content reaches 90% in the concentrate.
2, getting Leping, Chinese Jiangxi sepiolite content is 18%, with talcum and quartz is the weathering type sepiolite clay raw ore 1 of main associated mineral, adding water 2, to make concentration in pulper 3 be 25% ore pulp, and be incorporated as the sodium hexametaphosphate dispersant 4 of raw ore weight 0.3%, dispersed with stirring in dispersion machine 5 again, ore pulp after the dispersion enters centrifuge 6 to be separated, under the effect of centrifugal force field, impure mineral in raw ore sedimentation basically is a mine tailing 8, scpiolitc then is suspended in the concentrate slurry 7 basically, then the concentrate slurry 7 of gained being added filter aid quick lime 9 mixes in mixing apparatus 10, use filter press 11 filter-press dehydrations again, promptly get sepiolite concentrate filter cake 12 and waste water 13.When the separation factor of centrifuge was 2000, the productive rate of gained sepiolite concentrate reached 17.5%, and sepiolite content reaches 88% in the concentrate.
3, getting the Hunan China Liuyang is main associated mineral with talcum, sepiolite content is 19% weathering type sepiolite clay raw ore 1, adding water 2, to make concentration in pulper 3 be 33% ore pulp, and be incorporated as the sodium hexametaphosphate dispersant 4 of raw ore weight 0.3%, dispersed with stirring in dispersion machine 5 again, ore pulp after the dispersion enters centrifuge 6 to be separated, under the effect of centrifugal force field, impure mineral in raw ore sedimentation basically is a mine tailing 8, scpiolitc then is suspended in the concentrate slurry 7 basically, then the concentrate slurry 7 of gained being added filter aid quick lime 9 mixes in mixing apparatus 10, use filter press 11 filter-press dehydrations again, promptly get sepiolite concentrate filter cake 12 and waste water 13.When the separation factor of centrifuge was 2000, the productive rate of gained sepiolite concentrate reached 15.4%, and concentrate sepiolite content reaches 80%.
Claims (10)
1, a kind of beneficiation method that is used for weathering type sepiolite clay ore deposit is characterized in that:
A. raw ore adds water and makes raw ore slurry;
B. in said raw ore slurry, add dispersant; And
C. dispersed with stirring forms mixed liquor in mixer;
D. said mixed liquor enters and carries out the centrifugal sedimentation separation in the centrifuge;
E. the suspension that obtains in above-mentioned centrifugal sedimentation promptly adds filter aid and mixes in the concentrate slurry; Then
F. entering pressure (mistake) filter carries out filtering means dehydration and must make with extra care sepiolite.
2, beneficiation method according to claim 1 is characterized in that adding in the raw ore slurry dispersant, and this dispersant dosage is the calgon of raw ore weight 0.1-1.0%.
3, beneficiation method according to claim 1 and 2, the separation factor that it is characterized in that centrifuge is 500-3500.
4, beneficiation method according to claim 1 is characterized in that adding consumption in the sepiolite concentrate slurry that centrifugal sedimentation obtains is the filter aid quick lime of solid concentrate weight 1-3%.
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 CN86104415A (en) | 1987-06-24 |
| CN86104415B true CN86104415B (en) | 1988-12-28 |
Family
ID=4802455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86104415A Expired CN86104415B (en) | 1986-07-01 | 1986-07-01 | Ore dressing technology for weathered sepiolite clay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86104415B (en) |
Families Citing this family (8)
| 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 |
| CN104815747B (en) * | 2011-09-02 | 2017-06-20 | 康明克斯（北京）机电设备有限公司 | Ball clay Mud Sepa Machine and separation method |
| 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 |
| 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 |
-
1986
- 1986-07-01 CN CN86104415A patent/CN86104415B/en not_active Expired
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| Publication number | Publication date |
|---|---|
| CN86104415A (en) | 1987-06-24 |
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