CN102600990A - Method for improving recovery rates of gold and silver from chalcopyrite - Google Patents
Method for improving recovery rates of gold and silver from chalcopyrite Download PDFInfo
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- CN102600990A CN102600990A CN2012100669793A CN201210066979A CN102600990A CN 102600990 A CN102600990 A CN 102600990A CN 2012100669793 A CN2012100669793 A CN 2012100669793A CN 201210066979 A CN201210066979 A CN 201210066979A CN 102600990 A CN102600990 A CN 102600990A
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Abstract
The invention discloses a method for improving recovery rates of gold and silver from chalcopyrite. The method comprises the steps of: firstly crushing raw ore until the granularity is smaller than 12mm, adding quicklime, grinding, adding water to obtain ore pulp, then adding a collector and a foaming agent for chemical regulation, stirring, entering rough concentration for copper floatation, and carrying out scavenging, concentration and other steps on the ore pulp after rough concentration to obtain gold-silver-containing copper concentrate with high gold and silver grades. According to the invention, on the basis of ensuring traditional copper concentration economic and technical norms, the gold and silver recovery rates are improved by improving gold and silver grades in the copper concentrate, and the recovery rates of the accompany gold and silver in the chalcopyrite reach 85.11% and 89.97%, respectively; and the method is simple, the onsite production is easy to operate and the comprehensive utilization rate of ore resources is improved.
Description
Technical field
The present invention relates to gold and silver recovery technology field in the associated minerals, relate in particular to the method that reclaims gold and silver in a kind of chalcopyrite that contains the association gold and silver.
Background technology
Associated minerals are meant and are present in the mineral reserve that certain contains other mineral products, and associated minerals are all contained in general ore deposit, and the content of associated minerals is generally not too high, only are worth under the big situation at it and just can exploit separation.The original beneficiation flowsheet of China's nonferrous metal mine is main to reclaim main metal basically, reclaims the associated gold silver mineral in passing, cause the recovery of associated gold silver mineral be in always low-level on.Rusty gold generally is distributed in carrier mineral with gap gold, the golden form embedding in crack in the associated gold mineral, if there is the tiny monomer dissociation that is difficult to of its granularity to wrap up gold; Silver mineral exists with independent mineral forms often has three kinds of occurrence status, and the silver mineral inclusion enclave of micro-granularity, silver and sulfide cocrystallization, silver get into the carrier mineral lattice.Most of mine silver mineral granularity is tiny, is difficult to dissociate or expose.Because the disseminated grain size of association gold and silver is tiny, be easy to be lost in the flotation operation of corase grind ore deposit, abandoning of a large amount of mine tailings causes gold and silver to run off seriously, so, the unreasonable recovering effect that influences the association gold and silver of the ore-dressing technique condition of bargh itself.Confirming of main metal concentrate grade also is to influence the comprehensive key factor that reclaims of association gold and silver.It is generally acknowledged that main metal concentrate grade requirement is high more, the associated gold silver raising recovery rate descends many more.Therefore; Basic identical and do not influence under the situation of its rate of recovery in main metal concentrate grade; Technology and technology that research improves the associated gold silver raising recovery rate cost-effectively reclaim the Jin Heyin in the associated minerals to greatest extent, thereby improve resource utilization and mine economic profit.
Summary of the invention
Be in the situation of reduced levels to the recovery of existing associated gold silver mineral; The object of the invention just provides a kind of method that reclaims gold and silver in the chalcopyrite; Can solve the low problem of recovery of gold and silver in the associated minerals effectively, the inventive method is simple, and the scene is operated easily, implemented; Not only can improve ore comprehensive resources utilization rate, and can increase enterprise and social benefit.
It is to contain the method that reclaims gold and silver the chalcopyrite of association gold and silver from raw ore that the technical problem that the present invention will solve provides a kind of.
The present invention reclaims the method for gold and silver in the chalcopyrite, and raw ore is the chalcopyrite that contains the association gold and silver, may further comprise the steps:
(1) ore grinding with roughly select: make ore grain size less than 12mm through muck tcrude ore; Get into filler bin, add quick lime in the ore after fragmentation, tcrude ore addition per ton is 4000g; Through ore grinding to fineness-0.074mm60%～65%; Add water and process ore pulp, adding medicine is sized mixing, and the medicament of interpolation and consumption are that tcrude ore per ton adds butylamine black powder ((C4H
9O)
2PSSNH
4) and butyl xanthate (C
4H
9OCSSNa) hybrid collector 50g, foaming agent 20g; The mass parts ratio of said butylamine black powder and butyl xanthate is 3: 2; The control pH values of pulp is 12, after stirring, gets into the operation of roughly selecting of Floatation of Copper, roughly selects time 5min;
(2) scan one: step (1) is roughly selected the dosing once more of back ore pulp, and the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 7g, foaming agent 10g, and the mass parts ratio of said butylamine black powder and butyl xanthate is 3: 2; After stirring, get into and scan one, scan a time 4min;
(3) scan two: ore pulp dosing once more after scanning, the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 7g, foaming agent 5g, and the mass parts ratio of said butylamine black powder and butyl xanthate is 3: 2; After stirring, get into and scan two, scan two time 3min; Foams return and scan one after scanning two, and its ore pulp dumps as mine tailing;
(4) selected one: step (1) is roughly selected the back foam add medicament, medicament and consumption are that raw ore per ton adds butylamine black powder collecting agent 10g, after stirring entering selected one, a selected time 5min; A selected back ore pulp with scan a back foam and merge to turn back to and roughly select;
(5) selected two: a selected back foam carries out selected two again, selected two time 4min, and selected two back foams are and contain the gold, silver and bronze concentrate;
(6) a wherein selected back ore pulp with scan a back foam and merge to turn back to and roughly select, selected two back ore pulps return selected one.
The present invention compared with prior art has following characteristics: through ore grinding to fineness-0.074mm be 65%, make the grade of the liberation degree of minerals of gold silver mineral present normal distribution, reach best grade sorting result; The lime adjusting slurry pH that adds certain consumption is 12.00, and control pulp potential scope is beneficial to kustelite and floats in a large number; Add butylamine black powder and butyl xanthate hybrid collector; Through collaborative flotation effect between butylamine black powder and the butyl xanthate; Improve the hydrophobic performance of mineral surfaces, be easy to adsorb the flotation performance that bubble improves mineral, like this under the situation that does not influence copper recovery; Through improving the taste that contains gold and silver in the copper concentrate, to improve recovery of gold and silver.
Guaranteeing existing the choosing on the basis of copper economic and technical norms, the rate of recovery of associated gold and silver reaches 85.11%, 89.97% respectively in the chalcopyrite.The inventive method is simple, and produced on-site is operated easily, implemented; This method not only can improve the ore resource comprehensive utilization ratio, and can increase enterprise and social benefit.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
The present invention is further specified through the specific embodiment below in conjunction with accompanying drawing.
The specific embodiment
The raw ore that following examples 1 sort mainly contains the chalcopyrite of association gold and silver, and wherein the essential mineral of gold is argentiferous rusty gold, electrum; The essential mineral of silver is a native silver, and its head grade is: Cu 1.32%, Au 0.48g/t, Ag 9.63g/t, S 1.43%.When roughly selecting among the present invention refers to ore dressing selected raw mineral materials carried out the operation of preliminary sorting.Through roughly selecting, raw mineral materials is promptly divided to elect two or more product such as rough concentrate, mine tailing as.Roughly selecting product still is not qualified products, also need proceed sorting, in the selected finger ore dressing process, in order to improve the useful component content of roughly selecting concentrate, makes it to reach the quality requirement of industry, the sorting operation that further rough concentrate is carried out enrichment.Scan when referring to ore dressing, from rougher tailings, further reclaim the sorting operation of useful component.More than roughly select, selected, scan and all belong to routine techniques.
Embodiment 1:
As shown in Figure 1, the method for gold and silver in the recovery chalcopyrite, raw ore is the chalcopyrite that contains the association gold and silver, may further comprise the steps:
(1) make ore grain size less than 12mm through muck tcrude ore; Get into filler bin; Add lime in the ore after fragmentation, ore addition per ton is 4000g, through ore grinding to fineness-0.074mm be 60%～65%; Its ore pulp adding medicine is sized mixing, and the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder ((C4H
9O)
2PSSNH
4) and butyl xanthate (C
4H
9OCSSNa) hybrid collector 50g, foaming agent 20g; The control pH values of pulp is 12, and mixing time 2min gets into the operation of roughly selecting of Floatation of Copper, roughly selects time 5min;
(2) roughly select the dosing once more of back ore pulp, the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 7g, foaming agent 10g, and mixing time 2min gets into and scans one, scans a time 4min;
(3) scan a back ore pulp dosing once more, the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 7g, foaming agent 5g, and mixing time 2min gets into and scans two, scans two time 3min; Foams return and scan one after scanning two, and its ore pulp dumps as mine tailing;
(4) roughly select that the back foam adds medicament and consumption is that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 10g, mixing time 2min, get into selected one, a selected time 5min; A selected back foam carries out selected two again, wherein selected two time 4min, and selected two back foams are copper concentrate (association gold and silver);
(5) a wherein selected back ore pulp with scan a back foam and merge to turn back to and roughly select, it is selected one that selected two back ore pulps return, and scans two back ore pulps and turn back to and scan one.
Said method be according to technological process shown in Figure 1 through ore grinding to fineness-0.074mm be 65%; Add lime 4000g/t control pH values of pulp; Respectively roughly select, scan with selected each operation in butyl xanthate=3: 2), and foaming agent BK201 (commercially available) add butylamine black powder and butyl xanthate hybrid collector (butylamine black powder: by developing from the Beijing Mine and Metallurgy General Inst; Make the grade of the liberation degree of minerals of gold silver mineral present normal distribution; Reach best grade sorting result, improve the rate of recovery of gold and silver, the closed-circuit test result sees table 1:
Table 1
Claims (1)
1. method that improves recovery of gold and silver in the chalcopyrite is characterized in that carrying out as follows:
(1) ore grinding with roughly select: make ore grain size less than 12mm through muck tcrude ore, get into filler bin, add quick lime in the ore after fragmentation; Tcrude ore addition per ton is 4000g; Through ore grinding to fineness-0.074mm be 60%～65%, add water and process ore pulp, adding medicine is sized mixing; The medicament and the consumption that add are that tcrude ore per ton adds butylamine black powder and butyl xanthate hybrid collector 50g, foaming agent 20g; The mass parts ratio of said butylamine black powder and butyl xanthate is 3: 2; The control pH values of pulp is 12, after stirring, gets into the operation of roughly selecting of Floatation of Copper, roughly selects time 5min;
(2) scan one: step (1) is roughly selected the dosing once more of back ore pulp, and the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 7g, foaming agent 10g, and the mass parts ratio of said butylamine black powder and butyl xanthate is 3: 2; After stirring, get into and scan one, scan a time 4min;
(3) scan two: ore pulp dosing once more after scanning, the medicament of interpolation and consumption are that raw ore per ton adds butylamine black powder and butyl xanthate hybrid collector 7g, foaming agent 5g, and the mass parts ratio of said butylamine black powder and butyl xanthate is 3: 2; After stirring, get into and scan two, scan two time 3min; Foams return and scan one after scanning two, and its ore pulp dumps as mine tailing;
(4) selected one: step (1) is roughly selected the back foam add medicament, medicament and consumption are that raw ore per ton adds butylamine black powder collecting agent 10g, after stirring entering selected one, a selected time 5min; A selected back ore pulp with scan a back foam and merge to turn back to and roughly select;
(5) selected two: a selected back foam carries out selected two again, selected two time 4min, and selected two back foams are and contain the gold, silver and bronze concentrate;
(6) a wherein selected back ore pulp with scan a back foam and merge to turn back to and roughly select, selected two back ore pulps return selected one.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691569A (en) * | 2013-12-11 | 2014-04-02 | 西北矿冶研究院 | Flotation method for high-sulfur gold-bearing copper ore |
| CN104475227A (en) * | 2014-12-31 | 2015-04-01 | 湖南水口山有色金属集团有限公司 | Ore-dressing process for extracting copper and silver |
| CN106216101A (en) * | 2016-08-04 | 2016-12-14 | 西北矿冶研究院 | Method for improving recovery rate of sulfur and gold in tailings of old tailings pond |
| CN112170472A (en) * | 2019-07-02 | 2021-01-05 | 西南科技大学 | Novel emergency remediation technology for heavy metal contaminated soil |
| CN112221719A (en) * | 2020-10-21 | 2021-01-15 | 厦门紫金矿冶技术有限公司 | Method for improving recovery rate of associated gold from low-grade copper-sulfur ore |
| CN113102090A (en) * | 2021-04-16 | 2021-07-13 | 中南大学 | Method for recovering gold and silver from gold and silver associated sulfide ore |
| CN113617534A (en) * | 2021-08-27 | 2021-11-09 | 中钢集团马鞍山矿山研究总院股份有限公司 | Flotation method for complex and difficult-to-treat copper sulfide silver ore |
| CN114210462A (en) * | 2021-08-27 | 2022-03-22 | 中钢集团马鞍山矿山研究总院股份有限公司 | Collecting agent for flotation of complex and difficult-to-treat copper sulfide silver ore |
| CN114273087A (en) * | 2021-12-01 | 2022-04-05 | 铜陵有色金属集团铜冠建筑安装股份有限公司 | Environment-friendly method for improving recovery rate of copper from mineral separation |
| CN114798184A (en) * | 2022-05-16 | 2022-07-29 | 北京盈翔科技有限公司 | Efficient foaming agent for copper-gold ore flotation and application method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691569A (en) * | 2013-12-11 | 2014-04-02 | 西北矿冶研究院 | Flotation method for high-sulfur gold-bearing copper ore |
| CN104475227A (en) * | 2014-12-31 | 2015-04-01 | 湖南水口山有色金属集团有限公司 | Ore-dressing process for extracting copper and silver |
| CN106216101A (en) * | 2016-08-04 | 2016-12-14 | 西北矿冶研究院 | Method for improving recovery rate of sulfur and gold in tailings of old tailings pond |
| CN106216101B (en) * | 2016-08-04 | 2018-09-28 | 西北矿冶研究院 | Method for improving recovery rate of sulfur and gold in tailings of old tailings pond |
| CN112170472A (en) * | 2019-07-02 | 2021-01-05 | 西南科技大学 | Novel emergency remediation technology for heavy metal contaminated soil |
| CN112221719A (en) * | 2020-10-21 | 2021-01-15 | 厦门紫金矿冶技术有限公司 | Method for improving recovery rate of associated gold from low-grade copper-sulfur ore |
| CN113102090A (en) * | 2021-04-16 | 2021-07-13 | 中南大学 | Method for recovering gold and silver from gold and silver associated sulfide ore |
| CN113617534A (en) * | 2021-08-27 | 2021-11-09 | 中钢集团马鞍山矿山研究总院股份有限公司 | Flotation method for complex and difficult-to-treat copper sulfide silver ore |
| CN114210462A (en) * | 2021-08-27 | 2022-03-22 | 中钢集团马鞍山矿山研究总院股份有限公司 | Collecting agent for flotation of complex and difficult-to-treat copper sulfide silver ore |
| CN114273087A (en) * | 2021-12-01 | 2022-04-05 | 铜陵有色金属集团铜冠建筑安装股份有限公司 | Environment-friendly method for improving recovery rate of copper from mineral separation |
| CN114798184A (en) * | 2022-05-16 | 2022-07-29 | 北京盈翔科技有限公司 | Efficient foaming agent for copper-gold ore flotation and application method thereof |
| CN114798184B (en) * | 2022-05-16 | 2024-01-23 | 北京盈翔科技有限公司 | Efficient foaming agent for copper gold ore flotation and application method thereof |
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Application publication date: 20120725 |