CN105149100A - Method for recovering barite from lead and zinc tailings - Google Patents
Method for recovering barite from lead and zinc tailings Download PDFInfo
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- CN105149100A CN105149100A CN201510480002.XA CN201510480002A CN105149100A CN 105149100 A CN105149100 A CN 105149100A CN 201510480002 A CN201510480002 A CN 201510480002A CN 105149100 A CN105149100 A CN 105149100A
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Abstract
The invention relates to a method for recovering barite from lead and zinc tailings. The method includes the following steps: pyrite flotation is carried out to obtain pyrite flotation tailings; barite rougher flotation is carried out to obtain barite rough concentrates and barite rougher flotation tailings; scavenging is carried out on the barite rougher flotation tailings to obtain flotation tailings; and barite rough concentrate selection is carried out to obtain barite concentrates. The method is a beneficiation method which is relatively lower in medicament cost and processing cost and small in environmental pollution, and can use tailing water repeatedly; and the method is suitable for low-grade barite ore with the dolomite content ranging from 55% to 65% and the barite grade ranging from 10% to 15%.0
Description
Technical field
The present invention relates in a kind of Pb-Zn tailings and reclaim bar method, particularly a kind of method of the low-grade barite synthetical recovery of high dolomite content in Pb-Zn tailings.
Technical background
The simple barite deposit utilization power of China is better, but also there is the barite deposit of a large amount of association at present, and its quality is generally low, and barite does not well carry out synthetical recovery.The production-grade of barite exploitation is 50%, and cutoff grade is 30%, BaSO
4content lower than 30% belong to low-grade barite deposit.The low-grade barite of Guangxi Pb-Zn deposits association, after flotation of lead zinc, mine tailing is containing BaSO
4only about 13%, belong to low-grade barite deposit, in Pb-Zn tailings, dolomite content reaches 55 ~ 65% simultaneously, dolomite content higher than 20% belong to high dolomite content.Meanwhile, the pyrite of 13 ~ 15% is contained in this mine tailing.Dolomite flotation nature and barite are very similar, and therefore, this ore deposit belongs to extremely difficulty and selects barite deposit.
It is BaSO that Cui Changzheng (reclaiming bar application study from Pb-Zn tailings, " mineral products comprehensive utilization ", 2011,6, P47-49) describes to ore deposit grade
465.58%, gangue mineral is mainly calcite and quartz, and content is respectively 19.72% and 7.08%.Flotation-gravity treatment joint process is adopted to obtain BaSO
4grade 90.18%, the barite concentrate of the rate of recovery 52.45%.Raw ore barite grade described in literary composition is higher, does not belong to low-grade barite deposit.
Liu Sanjun etc. (reclaim bar experimental study from copper mining tailing, " mining metallurgical engineering ", 2008,12, P44-47) when to describe raw ore barium sulfate grade be 11.53%, take sodium carbonate as adjusting agent, sodium metasilicate is inhibitor, lauryl sodium sulfate and oleic acid are collecting agent, can obtain the barite of barium sulfate grade 91.68%, rate of recovery 80.4l%.Although this ore deposit raw ore barium sulfate grade is low, index is higher, and its gangue is silicate gangue, belongs to and easily selects barite deposit.
Liu Zhihong etc. (fluorite and Barite flotation separation test are studied, " chemical industry mineral and processing " 2009,9,
P12-13) describe Guizhou fluorite ore, fluorite and barite content high, when raw ore barium sulfate grade is 54.70%, open circuit selected four experimental conditions under can obtain grade 91.89%, the rate of recovery 74.22% structure CaF
2concentrate.Here mainly reclaim fluorite ore, synthetical recovery is not carried out to barite.
Above document is visible, for synthetical recovery bar in mine tailing, does not occur at present reaching more than 50% containing dolomite, BaSO simultaneously
4content selects the report of barite deposit synthetical recovery lower than the low-grade refractory of less than 15%.
Summary of the invention
The object of the present invention is to provide one bar method of synthetical recovery from Pb-Zn tailings.
Beneficiation method step of the present invention is as follows:
1. flotation of pyrite: Pb-Zn tailings fineness accounts for 72 ~ 75% Pb-Zn tailings for-0.074mm, pulp density 35 ~ 40%, add activator ferrous sulfate 1000 ~ 1100 grams/ton, collecting agent butyl xanthate 140 ~ 150 grams/ton, foaming agent terpenic oil 50 ~ 60 grams/ton, carry out one roughing, obtain pyrite and pyrite rougher tailings; Add collecting agent butyl xanthate 70 ~ 75 grams/ton in pyrite rougher tailings, foaming agent terpenic oil 10 ~ 15 grams/ton, carries out once purging selection, obtains flotation of pyrite mine tailing;
2. barite is roughly selected: flotation of pyrite mine tailing pulp density 30 ~ 35%, add inhibitor acidified sodium silicate 5000 ~ 7000 grams/ton, add collecting agent dodecyl sodium sulfate 140 ~ 170 grams/ton again and carry out one roughing, obtain barite rough concentrate and barite rougher tailings;
3. barite rougher tailings is scanned: barite rougher tailings adds collecting agent dodecyl sodium sulfate 30 ~ 60 grams/ton to carry out scanning for twice, obtains flotation tailing;
4. barite rough concentrate is selected: barite rough concentrate pulp density 25 ~ 30%, carry out 2 ~ 5 times selected, add inhibitor acidified sodium silicate 1500 ~ 2000 respectively; 1000 ~ 1300; 500 ~ 700; 500 ~ 700 and 500 ~ 700 grams/ton, obtain barite concentrate.
Described inhibitor acidified sodium silicate is the sulfuric acid of volume ratio 1: 1: waterglass mixture.
The present invention's dolomite very similar to flotation nature is separated with barite, adopt the sulfuric acid of volume ratio 1: 1: waterglass mixture is as the inhibitor of dolomite mineral, make bar collecting agent with dodecyl sodium sulfate, obtain the barite concentrate of high-quality.The present invention is adopted effectively to be reclaimed by the low-grade barite of dolomite content high in Pb-Zn tailings, Pb-Zn tailings dolomite content is 55 ~ 65%, and barite grade is under 10 ~ 15% conditions, through flotation, can obtain grade is 90 ~ 96%, and the rate of recovery is the barite concentrate of 60 ~ 71%.This method is that a kind of reagent cost and processing cost are relatively low, and environmental pollution is little, the beneficiation method that tailing water can be recycled.The inventive method is applicable to dolomite content 55 ~ 65%, and barite grade is low-grade barite deposit of 10 ~ 15%.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention.
Detailed description of the invention
The present invention is for the Pb-Zn tailings in certain mine, and mine tailing is containing dolomite 55 ~ 65%, BaSO
4content is 10 ~ 15%.Operate according to dosing listed by the flow chart of Fig. 1 and table 1, obtain barite concentrate.
Table 1 embodiment dosing (gram of/ton of Pb-Zn tailings)
Embodiment 1
Pb-Zn tailings fineness-0.074mm content is 72.58%, dolomite content 60.13%, barite content 10.25%.Pyrite roughly selects concentration 37%, and barite roughly selects concentration 33%, barite primary cleaning concentration 27%, barite recleaning concentration 26%.By flow operations listed by dosing listed by table 1 and Fig. 1, final gained barite concentrate is containing BaSO
490.85%, BaSO
4the rate of recovery 70.63%.
Embodiment 2
Pb-Zn tailings fineness-0.074mm content is 74.66%, dolomite content 55.25%, barite content 14.25%.Pyrite roughly selects concentration 39%, and barite roughly selects concentration 35%, barite primary cleaning concentration 29%, barite recleaning concentration 28%, barite triple cleaning concentration 27%, barite four selected concentration 26%, barite five selected concentration 25%.By flow operations listed by dosing listed by table 1 and Fig. 1, finally obtain barite concentrate containing BaSO
495.47%, BaSO
4the rate of recovery 60.84%.
Embodiment 3
Pb-Zn tailings fineness-0.074mm content is 73.39%, dolomite content 64.28%, barite content 13.65%.Pyrite roughly selects concentration 36%, and barite roughly selects concentration 31%, barite primary cleaning concentration 29%, barite recleaning concentration 27%, barite triple cleaning concentration 26%, barite four selected concentration 25%.By flow operations listed by dosing listed by table 1 and Fig. 1, finally obtain barite concentrate containing BaSO
493.68%, BaSO
4the rate of recovery 63.57%.
Claims (2)
1. from Pb-Zn tailings, reclaim a bar method, it is characterized in that being made up of following steps:
1) flotation of pyrite: Pb-Zn tailings fineness accounts for 72 ~ 75% Pb-Zn tailings for-0.074mm, pulp density 35 ~ 40%, add activator ferrous sulfate 1000 ~ 1100 grams/ton, collecting agent butyl xanthate 140 ~ 150 grams/ton, foaming agent terpenic oil 50 ~ 60 grams/ton, carry out one roughing, obtain pyrite and pyrite rougher tailings; Add collecting agent butyl xanthate 70 ~ 75 grams/ton in pyrite rougher tailings, foaming agent terpenic oil 10 ~ 15 grams/ton, carries out once purging selection, obtains flotation of pyrite mine tailing;
2) barite is roughly selected: flotation of pyrite mine tailing pulp density 30 ~ 35%, add inhibitor acidified sodium silicate 5000 ~ 7000 grams/ton, add collecting agent dodecyl sodium sulfate 140 ~ 170 grams/ton again and carry out one roughing, obtain barite rough concentrate and barite rougher tailings;
3) barite rougher tailings is scanned: barite rougher tailings adds collecting agent dodecyl sodium sulfate 30 ~ 60 grams/ton to carry out scanning for twice, obtains flotation tailing;
4) barite rough concentrate is selected: barite rough concentrate pulp density 25 ~ 30%, carry out 2 ~ 5 times selected, add inhibitor acidified sodium silicate 1500 ~ 2000 respectively; 1000 ~ 1300; 500 ~ 700; 500 ~ 700 and 500 ~ 700 grams/ton, obtain barite concentrate.
2. from Pb-Zn tailings, reclaim bar method according to claim 1, it is characterized in that inhibitor acidified sodium silicate is the sulfuric acid of volume ratio 1: 1: waterglass mixture.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457760A (en) * | 2015-12-22 | 2016-04-06 | 广西中金岭南矿业有限责任公司 | Preparation method of pyrite activator |
| 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 |
| 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 |
| CN109201340A (en) * | 2018-11-23 | 2019-01-15 | 贵州大学 | A kind of method for floating of barite deposit |
| 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 |
| CN110124850A (en) * | 2019-06-21 | 2019-08-16 | 湖南有色金属研究院 | A kind of technique preparing blanc fixe using Pb-Zn deposits milltailings |
| 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 |
| CN110882835A (en) * | 2019-11-05 | 2020-03-17 | 水口山有色金属有限责任公司 | Method for increasing silicon content in lead-zinc tailings |
| CN112619878A (en) * | 2020-11-10 | 2021-04-09 | 西北矿冶研究院 | Comprehensive recovery process for iron symbiotic nonferrous metal copper, lead and zinc |
| CN112619880A (en) * | 2020-11-10 | 2021-04-09 | 西北矿冶研究院 | Separation method of limonite and barite ores |
| CN112958272A (en) * | 2021-02-25 | 2021-06-15 | 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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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457760A (en) * | 2015-12-22 | 2016-04-06 | 广西中金岭南矿业有限责任公司 | Preparation method of pyrite activator |
| 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 |
| 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 |
| CN110124850A (en) * | 2019-06-21 | 2019-08-16 | 湖南有色金属研究院 | A kind of technique preparing blanc fixe using Pb-Zn deposits milltailings |
| 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 |
| CN110882835A (en) * | 2019-11-05 | 2020-03-17 | 水口山有色金属有限责任公司 | Method for increasing silicon content in lead-zinc tailings |
| CN112619878A (en) * | 2020-11-10 | 2021-04-09 | 西北矿冶研究院 | Comprehensive recovery process for iron symbiotic nonferrous metal copper, lead and zinc |
| CN112619880A (en) * | 2020-11-10 | 2021-04-09 | 西北矿冶研究院 | Separation method of limonite and barite ores |
| 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 |
| CN112958272A (en) * | 2021-02-25 | 2021-06-15 | 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 |
| 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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