CN103157558B - Beneficiation method of recovering sulfur from copper sulfide ore flotation tailings - Google Patents
Beneficiation method of recovering sulfur from copper sulfide ore flotation tailings Download PDFInfo
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- CN103157558B CN103157558B CN201310095527.2A CN201310095527A CN103157558B CN 103157558 B CN103157558 B CN 103157558B CN 201310095527 A CN201310095527 A CN 201310095527A CN 103157558 B CN103157558 B CN 103157558B
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Abstract
The invention belongs to the field of mineral processing, relates to a beneficiation method, and particularly relates to a method of sorting copper sulfide ore flotation tailings. The method comprises the following steps: A, the tailings with copper and sulfur separated are dewatered through a thickener, wherein the content of the sulfur in the tailings is more than 20%, and the concentration of the tailings is 10-15%, and after the tailings are dewatered, the concentration of a bottom current is improved to 20-25%; B, the bottom current of the A step enters a whirlcone to grade, and the concentration of sinking sand of the whirlcone is improved to 30-40%, the whirlcone overflows, the concentration of the tailings is 10%, the content of the sulfur is 15%, the tailings are discharged to a tailings pond or are concentrated back to the step A; and C, the concentration of the sinking sand in the step B is 30-40%, the content of the sulfur is 25-35%, the sinking sand enters to a flotation system, acid is added in the sinking sand and are mixed with a pH value of 6.5-7.5, after flotation reagents are added, final sulfur concentrate is obtained after one-time rough concentration, one-time scavenging and two-time choiceness. Compared with the prior technology, the beneficiation method of recovering the sulfur from the copper sulfide ore flotation tailings has the advantages of being stable in technological process, small in dosage of sulfuric acid and high in grade of sulfur concentrate and recovery rate.
Description
Technical field
The invention belongs to mineral manufacture field, relate to a kind of beneficiation method, especially one selects method for distinguishing to copper-sulphide ores flotation tailing.
Background technology
Sulfuric acid is one of staple product in basic chemical industry, is widely used in other sector of the national economy.And the primary raw material producing sulfuric acid has: troilite, sulphur and flue gas during smelting.Along with the development of national economy, the demand of market to sulfuric acid increases day by day.Improve the comprehensive recovery of ferro-sulphur ore, increase sulfuric acid raw material sources amount, to China's economic development, there is important function.
Shallow crust structures generally carries out in strongly basic medium, and a large amount of lime forms high-alkali high calcium ambient condition, and pyrite is suppressed.For making pyrite activate, copper is scanned mine tailing and is selected sulphur technique generally to adopt to add acid flotation process, and acid activation technique exists acid mist pollution, etching problem and potential hazards.Separately have gravity treatment after adopting HQS heavy medium cyclone-flotation column process integration, first magnetic separation again flotation technique, by reasonable disposition hydrocyclone, desliming reagent removal technique is carried out to copper tailing, realize Sulphur ressource and reclaim.Above technique or there is the problem of acid mist pollution or there is the not high problem of sulfur recovery rate.
Summary of the invention
The mine tailing that the present invention is directed to shallow crust structures adopts concentrated rear flotation to select sulphur technique, is conducive to reducing sulfuric acid dosage, is conducive to flotation and upgrades and the rate of recovery.
The present invention is achieved through the following technical solutions: the mine tailing of shallow crust structures adopts concentrator reagent removal and dehydration, after underflow enters cyclone classification, enter flotation and select sulphur system, through one roughing, once purging selection, twice selected iron concentrate obtaining final grade more than 47%.
It is characterized in that through following process steps:
The mine tailing of A, shallow crust structures adopts concentrator dehydration, mine tailing sulfur-bearing more than 20%, tailings concentration 10-15%, and after concentrator dehydration, underflow density brings up to 20-25%;
The underflow of B, step A enters cyclone classification, and hydrocyclone sand concentration brings up to 30-40%; Cyclone overflow, concentration 10%, sulfur-bearing 15%, abandon to Tailings Dam or return step A concentrate;
The sand setting of C, step, concentration 30-40%, sulfur-bearing 25-35%, enters floatation system, and acid adding is sized mixing to pH value 6.5-7.5, add floating agent through one roughing, once purging selection, selectedly obtain final iron concentrate twice;
Wherein, the medicament that step C adds is adjusting agent dilute sulfuric acid (concentration 10-20%) 50-300g/t, collecting agent xanthate 45-60 g/t, foaming agent 111# or other 2# wet goods ether alcohol class 8-12 g/t.
The present invention and existing technique ratio, have that technological process is stablized, sulfuric acid dosage is few, iron concentrate grade and a high advantage of the rate of recovery.
Detailed description of the invention
Jiangxi Copper company Dexing copper mine dashan concentrator production capacity is 9.2 ten thousand t/d.Copper flotation tailing carries out selecting sulphur, and select sulphur operation to adopt hydrocyclone, output and concentrate grade can not meet the needs of relieving haperacidity.
1, flotation selects sulphur system equipment to configure: select 10 70m
3pneumatic flotation cell selects sulphur.Select 2 groups of φ 420mm × 10 cyclone classification equipment.Select 3 12/10ST-AH Pulp pump, use 1 φ 45m concentrator.
2, flotation flowsheet: the mine tailing of shallow crust structures adopts concentrator reagent removal and dehydration, after underflow enters cyclone classification, sand setting enters flotation and selects sulphur system, overflow also can enter flotation and selects sulphur system after thickener washing and reagent removal, through one roughing, once purging selection, selectedly obtains final iron concentrate twice.Before sulphur is roughly selected, be provided with acid adding surge tank, flotation dosing and pH detect groove, acid adding surge tank has the effect of sizing mixing with ore pulp buffering simultaneously.
3, production effect:
It is as shown in the table for 3-12 month production economy technical indicator in 2012:
Claims (1)
1. copper-sulphide ores flotation tailing reclaims a beneficiation method for sulphur, it is characterized in that through following process steps:
The mine tailing of A, shallow crust structures adopts concentrator dehydration, mine tailing sulfur-bearing more than 20%, tailings concentration 10-15%, and after concentrator dehydration, underflow density brings up to 20-25%;
The underflow of B, step A enters cyclone classification, and hydrocyclone sand concentration brings up to 30-40%; Cyclone overflow, concentration 10%, sulfur-bearing 15%, abandon to Tailings Dam or return step A concentrate;
The sand setting of C, step B, concentration 30-40%, sulfur-bearing 25-35%, enters floatation system, and acid adding is sized mixing to pH value 6.5-7.5, add floating agent through one roughing, once purging selection, selectedly obtain final iron concentrate twice; Wherein, the medicament that step C adds has adjusting agent concentration to be the dilute sulfuric acid 50-300g/t of 10-20%, collecting agent xanthate 45-60g/t, foaming agent ether alcohol class 8-12g/t.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310095527.2A CN103157558B (en) | 2013-03-25 | 2013-03-25 | Beneficiation method of recovering sulfur from copper sulfide ore flotation tailings |
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| CN201310095527.2A CN103157558B (en) | 2013-03-25 | 2013-03-25 | Beneficiation method of recovering sulfur from copper sulfide ore flotation tailings |
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| CN103157558A CN103157558A (en) | 2013-06-19 |
| CN103157558B true CN103157558B (en) | 2015-07-01 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057111A (en) * | 2015-08-28 | 2015-11-18 | 北京矿冶研究总院 | Copper-sulfur separation method for copper-sulfur ore |
| CN110385196B (en) * | 2018-04-23 | 2021-02-02 | 刘海平 | Silicon-reducing and impurity-removing method for low-grade bauxite |
| CN112474035B (en) * | 2020-11-23 | 2022-06-28 | 江西铜业集团东同矿业有限责任公司 | Production process for obtaining sulfur concentrate from copper tailings |
| CN113893951B (en) * | 2021-10-22 | 2023-09-19 | 普洱山海工贸有限公司 | Environment-friendly process for recycling pyrite concentrate in copper tailings through efficient environment-friendly flotation |
| CN115155794B (en) * | 2022-06-17 | 2024-01-12 | 白银有色集团股份有限公司 | Flotation process for recycling and producing sulfur concentrate from flotation tailings |
| CN115155826B (en) * | 2022-06-22 | 2024-04-26 | 云南迪庆矿业开发有限责任公司 | Beneficiation method for improving quality of byproduct sulfur concentrate in copper separation process |
Citations (3)
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| CN1651148A (en) * | 2005-02-04 | 2005-08-10 | 吉林吉恩镍业股份有限公司 | Nickel sulfide, copper tailings comprehensive recovery technology |
| RU2320423C2 (en) * | 2006-05-03 | 2008-03-27 | ОАО "Горно-металлургическая компания "Норильский никель" | Method for flotation separation of sulfide copper-nickel pyrrhotine-bearing ores |
| CN101831559A (en) * | 2010-05-21 | 2010-09-15 | 昆明理工大学 | Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore |
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2013
- 2013-03-25 CN CN201310095527.2A patent/CN103157558B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651148A (en) * | 2005-02-04 | 2005-08-10 | 吉林吉恩镍业股份有限公司 | Nickel sulfide, copper tailings comprehensive recovery technology |
| RU2320423C2 (en) * | 2006-05-03 | 2008-03-27 | ОАО "Горно-металлургическая компания "Норильский никель" | Method for flotation separation of sulfide copper-nickel pyrrhotine-bearing ores |
| CN101831559A (en) * | 2010-05-21 | 2010-09-15 | 昆明理工大学 | Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore |
Non-Patent Citations (3)
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| 城门山铜硫矿石选矿试验研究与生产实践;雷贵春;《矿产保护与利用》;20050425(第2期);第65-66页 * |
| 水力旋流器在武山铜矿选硫生产中的研究与运用;罗晓华;《矿业快报》;20061001;第31-35页 * |
| 钟文慧等.提高德兴铜矿硫精矿品位的研究.《有色金属(选矿部分)》.2012,(第3期),第7-9页. * |
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