CN105149100B - A kind of method that barite is reclaimed from Pb-Zn tailings - Google Patents
A kind of method that barite is reclaimed from Pb-Zn tailings Download PDFInfo
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- CN105149100B CN105149100B CN201510480002.XA CN201510480002A CN105149100B CN 105149100 B CN105149100 B CN 105149100B CN 201510480002 A CN201510480002 A CN 201510480002A CN 105149100 B CN105149100 B CN 105149100B
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Abstract
A kind of method that barite is reclaimed from Pb-Zn tailings, is made up of following steps：Flotation of pyrite, obtain flotation of pyrite mine tailing；Barite roughing, obtain barite rough concentrate and barite rougher tailings；Barite rougher tailings is scanned, and obtains flotation tailing；Barite rough concentrate is selected, obtains barite concentrate.The method of the present invention is relatively low for a kind of reagent cost and processing cost, and environmental pollution is small, the beneficiation method that tailing water can be recycled, and suitable for dolomite content 55 ~ 65%, barite grade is 10 ~ 15% low-grade barite deposit.
Description
Technical field
The present invention relates to a kind of method that barite is reclaimed in Pb-Zn tailings, high white clouds in more particularly to a kind of Pb-Zn tailings
The method of the low-grade barite synthetical recovery of stone content.
Technical background
The simple barite deposit utilization power in China is preferable, but also there is the barite deposit of a large amount of associations, its matter at present
Amount is universal low, and barite does not carry out synthetical recovery well.The production-grade of barite exploitation is 50%, and cutoff grade is
30%, BaSO4Content belongs to low-grade barite deposit less than 30%.The low-grade barite of Guangxi Pb-Zn deposits association, flotation of lead
Mine tailing contains BaSO after zinc4Only 13% or so, belong to low-grade barite deposit, while in Pb-Zn tailings dolomite content up to 55 ~ 65%,
Dolomite content belongs to high dolomite content higher than 20%.Meanwhile contain 13 ~ 15% pyrite in the mine tailing.Dolomite floats
Select property very much like with barite, therefore, the ore deposit belongs to extremely difficult and selects barite deposit.
Cui Changzheng (application study of barite is reclaimed from Pb-Zn tailings,《Mineral products comprehensively utilize》,2011,6, P47-
49) it is BaSO to describe to ore deposit grade465.58%, gangue mineral is mainly calcite and quartz, and content is respectively 19.72% He
7.08%.BaSO is obtained using flotation-gravity treatment joint process4Grade 90.18%, the barite essence of the rate of recovery 52.45%
Ore deposit.Raw ore barite grade described in text is higher, is not belonging to low-grade barite deposit.
Liu Sanjun etc. (experimental study of barite is reclaimed from copper mining tailing,《Mining metallurgical engineering》,2008,12, P44-47)
Describe raw ore barium sulfate grade for 11.53% when, using sodium carbonate as regulator, sodium metasilicate is inhibitor, lauryl sodium sulfate
It is collecting agent with oleic acid, barium sulfate grade 91.68%, rate of recovery 80.4l% barite can be obtained.Although the ore deposit raw ore barium sulfate
Grade is low, and index is higher, but its gangue is silicate gangue, belongs to and easily selects barite deposit.
Liu Zhihong etc. (fluorite is studied with Barite flotation separation test,《Chemical industry mineral and processing》2009,9,
P12-13 Guizhou fluorite ore) is described, fluorite is high with barite content, and raw ore barium sulfate grade is 54.70%
When, it can obtain grade 91.89%, the structure CaF of the rate of recovery 74.22% under selected four experimental conditions of opening a way2Concentrate.Here it is mainly
Fluorite ore is reclaimed, synthetical recovery is not carried out to barite.
Document above is visible, for the synthetical recovery of barite in mine tailing, currently without occur containing dolomite up to 50% with
On, while BaSO4Low-grade difficulty of the content less than less than 15% selects the report of barite deposit synthetical recovery.
The content of the invention
It is an object of the invention to provide a kind of method of the synthetical recovery barite from Pb-Zn tailings.
The beneficiation method step of the present invention is as follows：
1. flotation of pyrite：Pb-Zn tailings fineness is that -0.074mm accounts for 72 ~ 75% Pb-Zn tailings, pulp density 35 ~ 40%, is added
Enter the g ton of activator ferrous sulfate 1000 ~ 1100, the g ton of collecting agent butyl xanthate 140 ~ 150,50 ~ 60 grams of foaming agent terpenic oil/
Ton, one roughing is carried out, obtain pyrite and pyrite rougher tailings；Collecting agent butyl xanthate 70 is added in pyrite rougher tailings
~ 75 g tons, the g ton of foaming agent terpenic oil 10 ~ 15, once purging selection is carried out, obtain flotation of pyrite mine tailing；
2. barite roughing：Flotation of pyrite mine tailing pulp density 30 ~ 35%, addition inhibitor acidified sodium silicate 5000 ~
7000 g tons, then add the g ton of collecting agent dodecyl sodium sulfate 140 ~ 170 carry out one roughing, obtain barite rough concentrate and
Barite rougher tailings；
3. barite rougher tailings is scanned：Barite rougher tailings adds the g ton of collecting agent dodecyl sodium sulfate 30 ~ 60
Scanned twice, obtain flotation tailing；
4. barite rough concentrate is selected：Barite rough concentrate pulp density 25 ~ 30%, carry out 2 ~ 5 times it is selected, be separately added into
Inhibitor acidified sodium silicate 1500 ~ 2000；1000~1300；500~700；500 ~ 700 and 500 ~ 700 g tons, obtain barite
Concentrate.
The inhibitor acidified sodium silicate is the sulfuric acid of volume ratio 1: 1: waterglass mixture.
The present invention dolomite very much like to flotation nature and barite separate, using the sulfuric acid of volume ratio 1: 1:
Inhibitor of the waterglass mixture as dolomite mineral, makees the collecting agent of barite with dodecyl sodium sulfate, obtains Gao Pin
The barite concentrate of matter.Effectively the low-grade barite of high dolomite content in Pb-Zn tailings can be reclaimed using the present invention,
Pb-Zn tailings dolomite content is 55 ~ 65%, under the conditions of barite grade is 10 ~ 15%, by flotation, can obtain grade for 90 ~
96%, the rate of recovery is 60 ~ 71% barite concentrate.This method is that a kind of reagent cost and processing cost are relatively low, to environment
Pollute the beneficiation method small, tailing water can be recycled.The inventive method is applied to dolomite content 55 ~ 65%, barite product
Position is 10 ~ 15% low-grade barite deposit.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention.
Embodiment
For the present invention by taking the Pb-Zn tailings in certain mine as an example, mine tailing contains dolomite 55 ~ 65%, BaSO4Content is 10 ~ 15%.Press
Dosing listed by flow chart and table 1 according to Fig. 1 is operated, and obtains barite concentrate.
The embodiment dosing of table 1（G ton Pb-Zn tailings）
Embodiment 1
Pb-Zn tailings fineness -0.074mm contents are 72.58%, dolomite content 60.13%, barite content 10.25%.It is yellow
Iron ore roughing concentration 37%, barite roughing concentration 33%, barite primary cleaning concentration 27%, barite recleaning concentration
26%.Flow operations listed by dosing and Fig. 1 as listed by table 1, final gained barite concentrate contain BaSO490.85%, BaSO4
The rate of recovery 70.63%.
Embodiment 2
Pb-Zn tailings fineness -0.074mm contents are 74.66%, dolomite content 55.25%, barite content 14.25%.It is yellow
Iron ore roughing concentration 39%, barite roughing concentration 35%, barite primary cleaning concentration 29%, barite recleaning concentration
28%, barite triple cleaning concentration 27%, four selected concentration 26% of barite, five selected concentration 25% of barite.By the institute of table 1
Flow operations listed by row dosing and Fig. 1, finally give barite concentrate and contain BaSO495.47%, BaSO4The rate of recovery
60.84%。
Embodiment 3
Pb-Zn tailings fineness -0.074mm contents are 73.39%, dolomite content 64.28%, barite content 13.65%.It is yellow
Iron ore roughing concentration 36%, barite roughing concentration 31%, barite primary cleaning concentration 29%, barite recleaning concentration
27%, barite triple cleaning concentration 26%, four selected concentration 25% of barite.Flowed listed by dosing and Fig. 1 as listed by table 1
Journey operates, and finally gives barite concentrate and contains BaSO493.68%, BaSO4The rate of recovery 63.57%.
Claims (2)
1. a kind of method that barite is reclaimed from Pb-Zn tailings, dolomite content is 55 ~ 65% in the Pb-Zn tailings, and weight is brilliant
Stone grade is 10 ~ 15%, it is characterized in that being made up of following steps：
1）Flotation of pyrite：Pb-Zn tailings fineness is that -0.074mm accounts for 72 ~ 75% Pb-Zn tailings, pulp density 35 ~ 40%, adds and lives
The g ton of agent ferrous sulfate 1000 ~ 1100, the g ton of collecting agent butyl xanthate 140 ~ 150, the g ton of foaming agent terpenic oil 50 ~ 60, enter
Row one roughing, obtain pyrite and pyrite rougher tailings；Collecting agent butyl xanthate 70 ~ 75 is added in pyrite rougher tailings
G ton, the g ton of foaming agent terpenic oil 10 ~ 15, once purging selection is carried out, obtain flotation of pyrite mine tailing；
2）Barite roughing：Flotation of pyrite mine tailing pulp density 30 ~ 35%, add inhibitor acidified sodium silicate 5000 ~ 7000
G ton, then add the g ton of collecting agent dodecyl sodium sulfate 140 ~ 170 to carry out one roughing, obtain barite rough concentrate and weight is brilliant
Stone rougher tailings；
3）Barite rougher tailings is scanned：Barite rougher tailings adds the g ton of collecting agent dodecyl sodium sulfate 30 ~ 60 and carried out
Scan twice, obtain flotation tailing；
4）Barite rough concentrate is selected：Barite rough concentrate pulp density 25 ~ 30%, carry out 2 ~ 5 times it is selected, be separately added into suppression
Agent acidified sodium silicate 1500 ~ 2000；1000~1300；500~700；500 ~ 700 and 500 ~ 700 g tons, obtain barite concentrate.
2. the method for barite is reclaimed from Pb-Zn tailings according to claim 1, it is characterized in that inhibitor acidified sodium silicate
For the sulfuric acid of volume ratio 1: 1: waterglass mixture.
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| CN105537000A (en) * | 2015-12-22 | 2016-05-04 | 广西中金岭南矿业有限责任公司 | Preparation method of barite inhibitor |
| CN105457760B (en) * | 2015-12-22 | 2017-10-31 | 广西中金岭南矿业有限责任公司 | A kind of preparation method of pyrite activator |
| CN106269218A (en) * | 2016-11-02 | 2017-01-04 | 广西大学 | A kind of method reclaiming barite from fluorite mine tailing |
| CN106944249A (en) * | 2017-04-27 | 2017-07-14 | 酒泉钢铁(集团)有限责任公司 | A kind of beneficiation combined method method containing low-grade barite waste material |
| CN107442266A (en) * | 2017-09-18 | 2017-12-08 | 湖南水口山有色金属集团有限公司 | A kind of recovery method of filling in mine Pb-Zn tailings |
| CN108325756A (en) * | 2017-12-28 | 2018-07-27 | 核工业北京化工冶金研究院 | A kind of barite beneficiation method rich in calcite and witherite |
| CN109225644A (en) * | 2018-11-01 | 2019-01-18 | 郴州市桥兴矿业有限责任公司 | A method of recycling barite from tailing |
| CN109201340A (en) * | 2018-11-23 | 2019-01-15 | 贵州大学 | A kind of method for floating of barite deposit |
| CN110124850B (en) * | 2019-06-21 | 2021-07-16 | 广西中金岭南矿业有限责任公司 | Process for preparing barite powder by using lead-zinc ore dressing tailings |
| CN110614165A (en) * | 2019-08-22 | 2019-12-27 | 贵州大学 | Inhibitor for effectively inhibiting calcium-containing and silicon-containing minerals in barite ore |
| CN110882835B (en) * | 2019-11-05 | 2021-10-12 | 水口山有色金属有限责任公司 | Method for increasing silicon content in lead-zinc tailings |
| CN112619880B (en) * | 2020-11-10 | 2022-09-16 | 西北矿冶研究院 | Separation method of limonite and barite ores |
| CN112619878B (en) * | 2020-11-10 | 2023-01-03 | 西北矿冶研究院 | Comprehensive recovery process for iron symbiotic nonferrous metal copper, lead and zinc |
| CN112958272B (en) * | 2021-02-25 | 2023-02-03 | 广东省科学院资源综合利用研究所 | Method for separating dolomite from dolomite-barite lead-zinc ore |
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Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: Institute of resources comprehensive utilization, Guangdong Academy of Sciences Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of resources comprehensive utilization, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: GUANGDONG INSTITUTE OF RESOURCES COMPREHENSIVE UTILIZATION |
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