CN102266818A - Comprehensive treatment method for mixed copper mine - Google Patents
Comprehensive treatment method for mixed copper mine Download PDFInfo
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- CN102266818A CN102266818A CN2011101913403A CN201110191340A CN102266818A CN 102266818 A CN102266818 A CN 102266818A CN 2011101913403 A CN2011101913403 A CN 2011101913403A CN 201110191340 A CN201110191340 A CN 201110191340A CN 102266818 A CN102266818 A CN 102266818A
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Abstract
The invention provides a comprehensive treatment method for mixed copper mine. Sulfur concentrate is successfully separated from copper concentrate through process steps of rough grinding, screening, fine grinding, rough floatation, cleaner flotation, magnetic separation, scavenging and the like, so that high-quality copper concentrate is obtained, massive pyrrhotite in a middling product subjected to flotation is selected through the step of magnetic separation, iron sulfur content in the middling product is reduced to the greatest degree, the middling product can become high-quality sulfur concentrate which can directly serve as a raw material for producing sulfuric acid, and tailings subjected to magnetic separation returns to the system for cycle production. Therefore, valuable resources are fully recycled, the tailings are subjected to multi-stage scavenging and then discharged to a tailing dam for storage, the problems of heavy production load, low concentrate grade and low recovery rate brought by returned tailings are solved, the comprehensive copper recovery rate is over 80 percent, the concentrate grade is over 19 percent, the copper concentrate contains gold of over 6g/t, the gold recovery rate is over 45 percent, the copper concentrate contains silver of over 418g/t, and the silver recovery rate is over 50 percent.
Description
Technical field
The present invention relates to a kind of copper ore resource integrated conduct method, especially height is contained the method that mud, high oxidation rate mixed copper ore carry out integrated treatment, belong to mineral and sort technical field.
Background technology
For the clay content height, go back the cupric oxide ore of impurity such as iron content, calcium, magnesium simultaneously, because its oxygenation efficiency is up to more than 40%, about 15%, and the mineral disseminated grain size is superfine in conjunction with rate, iron sulfide mineral such as pyrite and magnetic iron ore grade reach 50%, and very easily swim, add with the copper mineral symbiosis after both be difficult to resolve from, more difficult separation, therefore, be a kind of ore of extremely difficult flotation.After the method processing with prior art, the copper concentrate grade that obtains only is 12.22%, and the rate of recovery of copper is 33.94%, and copper concentrate gold content is 2.32g/t, gold recovery is 17.12%, copper concentrate silver content 248.11g/t, silver raising recovery rate are 31.59%, and the production cost height, cause the loss of enterprise, and be difficult to keep normal operation, therefore, can't realize ordinary production and operation with conventional ore-dressing technique at all.
Summary of the invention
Be solution clay content height, the oxygenation efficiency height, the high normally ore dressings of cupric oxide ore of impurity such as iron content, calcium, magnesium, and investment is big, cost is high, the problem of no economic benefit, the invention provides a kind of integrated conduct method of mixed copper ore.With realize low dropping into, low-cost, purpose that high efficiency is recycled copper ore resource,
It is a kind of like this integrated conduct method of mixed copper ore that the present invention solves the technical scheme that its technical problem takes, and comprises ore grinding, flotation and magnetic separation, it is characterized in that through following process steps:
A, with height contain mud, high-combination rate mixed copper ore is roughly ground, through once the screening after, the mixed copper ore on the sieve returns corase grind, mixed copper ore under the sieve is through regrading, after mixed copper ore carries out fine grinding on the sieve of regrading, return regrading, the mixed copper ore on the secondary sieve continues fine grinding;
B, with under the sieve behind the regrading of A step-mixed copper ore that the 0.074mm particle diameter accounts for 85～87% mass ratioes carries out rough floatation, selects copper sulphur ore deposit and mine tailing;
Sieve in C, the copper sulphur ore deposit that the B step is selected, on the sieve mineral behind ore grinding with sieve down mineral merge, carry out cleaner flotation one time, select copper mine and chats;
D, the copper mine that the C step is selected carry out the secondary cleaner flotation, get copper concentrate, and the chats of secondary cleaner flotation returns the C step and sieves;
E, the chats that the C step is selected are scanned, and the chats of scanning returns the C step and sieves, after scanning the sulphur concentrate;
F, the mine tailing that the B step is selected are scanned step by step, and the mine tailing of finally selecting send tailing dam to deposit, and collects the chats of selecting at different levels, carry out magnetic separation, select the magnetic ore deposit, and non magnetic ore deposit is scanned step by step, and the chats scanned of each grade returns upper level successively and scans;
Carry out once in G, the magnetic ore deposit that the F step is selected, the secondary magnetic separation, the magnetic thing reclaims, and once, the mine tailing that magneticly elects of secondary returns the A step.
A cleaner flotation of the rough floatation of described B step, C step, scanning of secondary cleaner flotation, E step and the F step of D step are conventional flotation.
Magnetic separation in the described G step is conventional magnetic separation.
The scanning step by step of described F step is at least secondary and scans.
The present invention compared with prior art has following advantage and effect: adopt above-mentioned processing route, in floatation process, pyrite (sulphur concentrate) and copper concentrate are successfully separated first, thereby obtain high-quality copper concentrate, by the magnetic separation step a large amount of magnetic iron ore in the chats that flotates are selected simultaneously, reduced the iron sulfur content of chats to greatest extent, can make chats become matter measured can be directly as the sulphur concentrate of gas washing in SA production raw material, mine tailing retrieval system circulation after the magnetic separation is produced, valuable resource is fully recycled, mine tailing just is discharged into the tailing dam storage after multistage scanning, overcome prior art and returned the production load weight that production system is brought because of mine tailing, concentrate grade is low, the problem that the rate of recovery is low, technology investment of the present invention is little, cost is low, can high efficiente callback utilize sheep to draw the mixed copper ore resource, wherein the copper comprehensive recovery reaches more than 80%, concentrate grade reaches more than 19%, copper concentrate contains more than the golden 6g/t, gold recovery reaches more than 45%, more than the copper concentrate argentiferous 418g/t, silver raising recovery rate reaches more than 50%.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Embodiment 1
The raw ore chemical composition analysis of present embodiment 1 the results are shown in Table 1, and the copper material phase analysis the results are shown in Table 2 in the raw ore, and the iron material phase analysis the results are shown in Table 3 in the raw ore, and technical indicator sees Table 4 after the ore dressing.
Present embodiment 1 amounts to dosing: xanthate 35g/t, YL-1 45g/t, vulcanized sodium 20g/t, lime 8kg/t, butyl ammonium aerofloat 5g/t, soda ash 0.35kg/t.
Above-mentioned raw ore is passed through the following step:
A, with height contain mud, high-combination rate mixed copper ore is roughly ground, through once the screening after, the mixed copper ore on the sieve returns corase grind, mixed copper under the sieve carries out regrading, after mixed copper ore carries out fine grinding on the sieve of regrading, return regrading, the mixed copper ore on the secondary sieve continues fine grinding;
B, with under the sieve behind the regrading of A step-mixed copper ore that the 0.074mm particle diameter accounts for 85% mass ratio carries out rough floatation, selects copper sulphur ore deposit and mine tailing;
Sieve in C, the copper sulphur ore deposit that the B step is selected, on the sieve mineral behind ore grinding with sieve down mineral merge, carry out cleaner flotation one time, select copper mine and chats;
D, the copper mine that the C step is selected carry out the secondary cleaner flotation, get copper concentrate, and the chats of secondary cleaner flotation returns the screening of C step;
E, the chats that the C step is selected are scanned, and the chats of scanning returns the screening of C step, after scanning the sulphur concentrate;
F, the mine tailing that the B step is selected carry out level Four step by step and scan, one to three grade of mineral of scanning out carries out twice magnetic separation step by step, select the magnetic ore deposit, and the regrading of A step is returned in non magnetic ore deposit, the mineral that the fourth stage is scanned return the third level and scan, the mine tailing that the fourth stage is scanned is the finality ore deposit, send tailing dam to deposit.
Embodiment 2
The raw ore chemical composition analysis of present embodiment 2 the results are shown in Table 5, and the copper material phase analysis the results are shown in Table 6 in the raw ore, and the iron material phase analysis the results are shown in Table 7 in the raw ore, and technical indicator sees Table 8 after the ore dressing.
Present embodiment 2 amounts to dosing: xanthate 34g/t, YL-1 46g/t, vulcanized sodium 21g/t, lime 8kg/t, butyl ammonium aerofloat 5g/t, soda ash 0.36kg/t.
Above-mentioned raw ore is passed through the following step:
A, with height contain mud, high-combination rate mixed copper ore is roughly ground, through once the screening after, the mixed copper ore on the sieve returns corase grind, mixed copper under the sieve carries out regrading, after mixed copper ore carries out fine grinding on the sieve of regrading, return regrading, the mixed copper ore on the secondary sieve continues fine grinding;
B, with under the sieve behind the regrading of A step-mixed copper ore that the 0.074mm particle diameter accounts for 87% mass ratio carries out rough floatation, selects copper sulphur ore deposit and mine tailing;
Sieve in C, the copper sulphur ore deposit that the B step is selected, on the sieve mineral behind ore grinding with sieve down mineral merge, carry out cleaner flotation one time, select copper mine and chats;
D, the copper mine that the C step is selected carry out the secondary cleaner flotation, get copper concentrate, and the chats of secondary cleaner flotation returns the screening of C step;
E, the chats that the C step is selected are scanned, and the chats of scanning returns the screening of C step, after scanning the sulphur concentrate;
F, the mine tailing that the B step is selected carry out level Four step by step and scan, one to three grade of mineral of scanning out carries out twice magnetic separation step by step, select the magnetic ore deposit, and the regrading of A step is returned in non magnetic ore deposit, the mineral that the fourth stage is scanned return the third level and scan, the mine tailing that the fourth stage is scanned is the finality ore deposit, send tailing dam to deposit.
Claims (2)
1. the integrated conduct method of a mixed copper ore comprises ore grinding, flotation and magnetic separation, it is characterized in that through following process steps:
A, with height contain mud, high-combination rate mixed copper ore is roughly ground, through once the screening after, the mixed copper ore on the sieve returns corase grind, mixed copper ore under the sieve is through regrading, after mixed copper ore carries out fine grinding on the sieve of regrading, return regrading, the mixed copper ore on the secondary sieve continues fine grinding;
B, with under the sieve behind the regrading of A step-mixed copper ore that the 0.074mm particle diameter accounts for 85～87% mass ratioes carries out rough floatation, selects copper sulphur ore deposit and mine tailing;
Sieve in C, the copper sulphur ore deposit that the B step is selected, on the sieve mineral behind ore grinding with sieve down mineral merge, carry out cleaner flotation one time, select copper mine and chats;
D, the copper mine that the C step is selected carry out the secondary cleaner flotation, get copper concentrate, and the chats of secondary cleaner flotation returns the C step and sieves;
E, the chats that the C step is selected are scanned, and the chats of scanning returns the C step and sieves, after scanning the sulphur concentrate;
F, the mine tailing that the B step is selected are scanned step by step, and the mine tailing of finally selecting send tailing dam to deposit, and collects the chats of selecting at different levels, carry out magnetic separation, select the magnetic ore deposit, and non magnetic ore deposit is scanned step by step, and the chats scanned of each grade returns upper level successively and scans;
Carry out once in G, the magnetic ore deposit that the F step is selected, the secondary magnetic separation, the magnetic thing reclaims, and once, the mine tailing that magneticly elects of secondary returns the A step.
2. the integrated conduct method of mixed copper ore as claimed in claim 1 is characterized in that scanning step by step of described F step is at least secondary and scans.
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| CN2011101913403A CN102266818A (en) | 2011-07-09 | 2011-07-09 | Comprehensive treatment method for mixed copper mine |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600990A (en) * | 2012-03-14 | 2012-07-25 | 安徽金联地矿科技有限公司 | Method for improving recovery rates of gold and silver from chalcopyrite |
| CN104759353A (en) * | 2015-04-10 | 2015-07-08 | 铜陵有色金属集团股份有限公司 | Method for recycling copper minerals from high-sulfur rebellious copper ore step by step |
| CN104815746A (en) * | 2015-04-09 | 2015-08-05 | 湖南有色金属研究院 | Recovery method of high-iron highly-argillaceous alkaline gangue refractory oxide copper ore |
| CN104998750A (en) * | 2015-08-12 | 2015-10-28 | 玉溪大红山矿业有限公司 | Beneficiation method for efficiently recycling low-grade copper-bearing lava magnetite |
| CN106000639A (en) * | 2016-06-15 | 2016-10-12 | 中国瑞林工程技术有限公司 | High-grade matte-contained copper smelting converter slag treatment process |
| CN107115962A (en) * | 2017-05-10 | 2017-09-01 | 厦门环资矿业科技股份有限公司 | A kind of iron copper sulphur ore deposit ore-sorting system and method |
| WO2018161653A1 (en) * | 2017-03-09 | 2018-09-13 | 昆明理工大学 | Method for recycling wrapped complex copper oxide ores |
| CN108787155A (en) * | 2018-04-04 | 2018-11-13 | 云南迪庆矿业开发有限责任公司 | A kind of high-sulfur iron Copper Ores flotation processing method |
| CN111921693A (en) * | 2020-08-10 | 2020-11-13 | 清华大学 | Method for comprehensively recovering copper and iron minerals in metal tailings |
| WO2021037243A1 (en) * | 2019-08-29 | 2021-03-04 | 江西理工大学 | Pyrrhotite mineral processing method using low-alkali process of flotation followed by magnetic separation |
| WO2021037242A1 (en) * | 2019-08-29 | 2021-03-04 | 江西理工大学 | Pyrrhotite mineral processing method using low-alkali process of magnetic separation followed by flotation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600990A (en) * | 2012-03-14 | 2012-07-25 | 安徽金联地矿科技有限公司 | Method for improving recovery rates of gold and silver from chalcopyrite |
| CN104815746A (en) * | 2015-04-09 | 2015-08-05 | 湖南有色金属研究院 | Recovery method of high-iron highly-argillaceous alkaline gangue refractory oxide copper ore |
| CN104759353A (en) * | 2015-04-10 | 2015-07-08 | 铜陵有色金属集团股份有限公司 | Method for recycling copper minerals from high-sulfur rebellious copper ore step by step |
| CN104998750A (en) * | 2015-08-12 | 2015-10-28 | 玉溪大红山矿业有限公司 | Beneficiation method for efficiently recycling low-grade copper-bearing lava magnetite |
| CN104998750B (en) * | 2015-08-12 | 2017-05-03 | 玉溪大红山矿业有限公司 | Beneficiation method for efficiently recycling low-grade copper-bearing lava magnetite |
| CN106000639A (en) * | 2016-06-15 | 2016-10-12 | 中国瑞林工程技术有限公司 | High-grade matte-contained copper smelting converter slag treatment process |
| WO2018161653A1 (en) * | 2017-03-09 | 2018-09-13 | 昆明理工大学 | Method for recycling wrapped complex copper oxide ores |
| CN107115962A (en) * | 2017-05-10 | 2017-09-01 | 厦门环资矿业科技股份有限公司 | A kind of iron copper sulphur ore deposit ore-sorting system and method |
| CN108787155A (en) * | 2018-04-04 | 2018-11-13 | 云南迪庆矿业开发有限责任公司 | A kind of high-sulfur iron Copper Ores flotation processing method |
| WO2021037243A1 (en) * | 2019-08-29 | 2021-03-04 | 江西理工大学 | Pyrrhotite mineral processing method using low-alkali process of flotation followed by magnetic separation |
| WO2021037242A1 (en) * | 2019-08-29 | 2021-03-04 | 江西理工大学 | Pyrrhotite mineral processing method using low-alkali process of magnetic separation followed by flotation |
| CN111921693A (en) * | 2020-08-10 | 2020-11-13 | 清华大学 | Method for comprehensively recovering copper and iron minerals in metal tailings |
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