CN102373337A - Process for processing complex gold ore containing copper and arsenic - Google Patents
Process for processing complex gold ore containing copper and arsenic Download PDFInfo
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- CN102373337A CN102373337A CN2010102580291A CN201010258029A CN102373337A CN 102373337 A CN102373337 A CN 102373337A CN 2010102580291 A CN2010102580291 A CN 2010102580291A CN 201010258029 A CN201010258029 A CN 201010258029A CN 102373337 A CN102373337 A CN 102373337A
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Abstract
The invention relates to a process for processing a complex gold ore containing copper and arsenic. The complex gold ore containing copper and arsenic is processed by combining the steps of reselecting, floating, cyaniding and leaching, calcinating arsenic ore concentrate. The process of the invention comprises the following steps: grinding the raw ore to certain granularity, by using the specific gravity difference of mispickel, copper sulphide and gold, separating mispickel and coarse monomer gold with high specific gravity (gold loading or gold unloading) by using reselection, enriching middling by using flotation to obtain (gold loading or gold unloading) copper concentrate, leaching tailing (if gold-loading gangue ) by cyaniding and stirring to extract fine particle gold in gangue, reselecting arsenic concentrate to calcinate, recovering As2O3 by using low temperature cloth bag arsenic collection technology through air cooling or water cooling, and leaching calcine (if gold-loading calcine) by stirring and cyaniding. The process of the invention has simple device, obtains high technical index, and provides good economic benefit to mine.
Description
Technical field
The present invention relates to the technology of a kind of Treatment of Copper, the complicated Gold Ore of arsenic.The arsenic of indication of the present invention is the arsenic in the mispickel, and copper is the copper in the cupric sulfide.The gold be present in the ore with any form, its carrier is mispickel, cupric sulfide and gangue, or wherein one or both.
Background technology
Along with the fast development of gold industry, be easy to adopt the gold ore resource of monotechnics exploitation day by day exhausted, the difficult-treating gold mine resource has become the main raw material of China's gold industry from now on.The occurrence status of gold has a variety of; In some complicated metallic ore; Part gold is present in the gangue with microfine and sub-micron; A part is present in identical form in the sulphide ores such as mispickel, and a part is present in the valuable metal mineral such as cupric sulfide, and some exists with the simple substance native state than volume particle size.For this kind complex multi-metal ore deposit, no matter adopt any existing technology, all can not obtain comparatively ideal index.Flotation process contains golden cupric sulfide etc. relatively effectively for those flotabilities are reasonable, and as far as containing of some oxidations of golden mispickel, recovering state is not fine.Cyanide process is very low to the leaching rate of gold-bearing sulfide ore, big grain simple substance gold, and a large amount of sodium cyanides of easy consumption such as mispickel, copper.Therefore, seeking a kind of different states gold that can reclaim can be very necessary with carrying the technology that the gold dollar element comprehensively reclaims again.
Summary of the invention
The technology that the purpose of this invention is to provide a kind of Treatment of Copper, the complicated Gold Ore of arsenic utilizes this technology in efficiently concentrating, the various gold of extraction, comprehensively to reclaim other element in the ore.
The object of the invention can be realized through following measure:
The characteristics of this technology are to utilize gravity treatment-flotation-cyaniding leaching-arsenic concentrate roasting combined process flow to realize the comprehensive utilization to cupric, the complicated Gold Ore of arsenic.Be about to raw ore and be milled to certain particle size; Utilize the difference in specific gravity of gold, mispickel, cupric sulfide to adopt gravity treatment (carry gold or do not carry gold) mispickel, coarse grain monomer gold that proportion is bigger to separate earlier; Chats utilizes floating and enriching to obtain (carry gold or do not carry gold) copper ore concentrates; Mine tailing (if gangue carries gold) utilizes the cyaniding agitation leach to extract the micro-fine-grained gold in the gangue, and the gravity treatment arsenic concentrate carries out roasting, reclaims As through utilizing the low temperature cloth bag to receive the arsenic tooling after air cooling or the water-cooled
2O
3, calcining (if carrying gold) carries out stirring cyanidation again and leaches.
(1) adopt gravity separation method to reclaim mispickel;
(2) the gravity treatment feed particle size is that-250 μ m are to-104 μ m;
(3) ore pulp of the gravity treatment concentration of sizing mixing is 10-15%;
(4) the gravity treatment chats carries out floatation recovery to copper mineral;
(5) feed particle size of gravity treatment chats (ore deposit is given in flotation) is-74 μ m 55%-95%;
(6) the flotation pulp concentration of gravity treatment chats (ore deposit is given in flotation) is 25-30%;
(7) flotation reagent of gravity treatment chats (flotation give ore deposit) be O-sec.-propyl-N-ethyl thionic carbamate, sodium xanthonate, cupral, ammonium dibutyldithiophosphate or wherein two kinds be used (proportioning is 1: 1); Dosing is 30-75g/t, and the time is 12-15 minute;
(8) gravity tailings (if do not carry gold in the gangue, gravity tailings abandons) adopts cyaniding to leach the micro-fine-grained gold that extracts in the gangue.
(9) liquid-solid ratio of gravity tailings entering cyaniding leaching is 1.5: 1-4: 1;
(10) feed particle size of gravity tailings entering cyaniding leaching is-74 μ m 60%～-44 μ m 95%;
(11) the protection alkali before gravity tailings entering cyaniding is leached is lime, yellow soda ash, and consumption is 3-5kg/t;
(12) the sodium cyanide consumption of gravity tailings entering leaching is 0.5kg/t-3kg/t; Extraction time is 12-72h;
(13) maturing temperature of gravity concentrate (mispickel) is 500-750 ℃, and the temperature of receiving the low temperature cloth bag of arsenic is 90-150 ℃;
(14) cyaniding of gravity concentrate calcining is leached and is carried gold (if calcining does not carry gold, then calcining abandons), and the granularity of leaching is-74 μ m 95%～-44 μ m 95%;
(15) liquid-solid ratio of gravity concentrate calcining cyaniding leaching is 1.5: 1-4: 1;
(16) the protection alkali before the cyaniding of gravity concentrate calcining is leached is lime, yellow soda ash, and consumption is 3-5kg/t;
(17) gravity concentrate calcining cyaniding leaching sodium cyanide consumption is 3kg/t-6kg/t, and extraction time is 24-72h.
If do not carry gold in the gangue, gravity tailings abandons; If do not carry gold in the calcining, then calcining abandons.
Advantage of the present invention is: utilize this processing unit simple, can obtain very high technical indicator, can comprehensively reclaim gold, copper mineral and the arsenic in this complex ore well, bring good economic benefits to the mine.
Description of drawings
Fig. 1 is the process flow diagram of Treatment of Copper provided by the invention, the complicated Gold Ore of arsenic.
Fig. 2 is used for contrasting with the present invention for adopting the schematic flow sheet of flotation-cyaniding process integration.
Fig. 3 is employing cyaniding-flotation combined flow process, first cyanide gold-leaching, and flotation of leached residue reclaims the synoptic diagram of copper mineral and mispickel technical process, is used for contrasting with the present invention.
Embodiment
Embodiment 1
The complicated Gold Ore of certain cupric, arsenic, ore are to be master's ore with valuable mineral yellow copper ore, gold, mispickel.Gangue mineral mainly is quartz, feldspar and clay mineral etc., wherein part mispickel surface oxidation.Gold is present in mispickel, yellow copper ore and the gangue.
Copper content is 1.2% in the ore, and containing arsenic is 2.87%, contains golden 10g/t (all being weight percentage).
Utilize the inventive method, be about to raw ore and be milled to-150 μ m and carry out the table concentration enrichment and carry golden mispickel, the gravity concentrate maturing temperature is 750 ℃; The temperature that the low temperature cloth bag is received arsenic is 120 ℃, and it is-44 μ m60% that calcining leaches granularity, and liquid-solid ratio is 1.5: 1; Add protection soda-lime 4kg/t; PH adds sodium cyanide 5kg/t after being stabilized in more than 11.5, leaches 72h; Shaking table chats (74 μ m 65%) directly utilizes O-sec.-propyl-N-ethyl thionic carbamate flotation yellow copper ore, and flotation pulp concentration is 30%, and the total consumption of medicament is 70g/t, and flotation time is 16 minutes; Gravity tailings (74 μ m 95%) size mixing to liquid-solid ratio be 2: 1, add protection soda-lime 4kg/t, pH is stable after 11.5 or more, adds sodium cyanide 2kg/t, leaching 24h.Fig. 1 is seen in technical process, and test-results is seen table 1.
Adopt flotation-cyaniding combined process flow, first floatation recovery is carried the auricupride thing, is carried golden mispickel, and mine tailing cyanide gold-leaching, flotation grinding fineness are-74 μ m 65%, and mine tailing leaches grinding fineness and is-44um95%.Fig. 2 is seen in technical process, and experimental result is seen table 1, is used for contrasting with the present invention.
Adopt cyaniding-flotation combined flow process, first cyanide gold-leaching, flotation of leached residue reclaim copper mineral and carry golden mispickel, and grinding fineness is-74 μ m 65%, and Fig. 3 is seen in technical process, and experimental result is seen table 1, is used for contrasting with the present invention.
Embodiment 2
The ore source is with embodiment 1.
Utilize the inventive method, be about to raw ore and be milled to-120 μ m and carry out the table concentration enrichment and carry golden mispickel arsenic, the gravity concentrate maturing temperature is 700 ℃; The temperature that the low temperature cloth bag is received arsenic is 100 ℃, and it is-74 μ m90% that calcining leaches granularity, and liquid-solid ratio is 2: 1; Add protection soda-lime 4kg/t; PH adds sodium cyanide 4kg/t after being stabilized in more than 11.5, leaches 72h; Shaking table chats (74 μ m 70%) directly utilizes O-sec.-propyl-N-ethyl thionic carbamate and 1: 1 flotation yellow copper ore of cupral, and flotation pulp concentration is 30%, and the total consumption of medicament is 70g/t, and flotation time is 16 minutes; Gravity tailings (44 μ m 60%) size mixing to liquid-solid ratio be 2: 1, add protection soda-lime 4kg/t, pH is stable after 11.5 or more, adds sodium cyanide 1.5kg/t, leaching 24h.Fig. 1 is seen in technical process, and test-results is seen table 1.
Table 1 different process result
No matter can find out from table 1, be embodiment 1 or embodiment 2, utilizes that technology provided by the invention can realize fully, the purpose of high efficiente callback cupric sulfide, gold and arsenic.
When adopting flotation-cyaniding combined process flow; The flotation yellow copper ore has been carried part arsenic secretly; Cause to can not get qualified copper ore concentrates, and since the partially oxidation of arsenic its can not float well, make the mine tailing leaching yield also very low because of also containing the gold that more mispickel wraps up in the flotation tailings; So cause wherein golden comprehensive recovery less than 70%, and arsenic can not well be reclaimed.
When adopting cyaniding-flotation combined flow process, the gold that not only is wrapped in yellow copper ore and the mispickel can't leach, and yellow copper ore all can't guarantee with the recovery of poison sand during the cyaniding tailing flotation, finally causes three kinds of elements all can't reclaim preferably.
Can know from top analysis, utilize technology provided by the invention can comprehensively reclaim gold, copper mineral and the arsenic in this complex ore well.
Claims (7)
1. the technology of a Treatment of Copper, the complicated Gold Ore of arsenic is characterized in that, it is to utilize gravity treatment-flotation-cyaniding leachings-arsenic concentrate roasting combined process flow to realize the processing of cupric, arsenic complicacy Gold Ore is comprised:
Raw ore is milled to certain particle size, utilize earlier the difference in specific gravity of gold, mispickel, cupric sulfide adopt gravity treatment with proportion bigger carry golden or do not carry golden mispickel, coarse grain monomer gold is separated;
Chats utilizes floating and enriching to obtain carrying gold or does not carry golden copper ore concentrates;
The gravity treatment arsenic concentrate carries out roasting, reclaims As through utilizing the low temperature cloth bag to receive the arsenic tooling after air cooling or the water-cooled
2O
3
2. the technology of a kind of Treatment of Copper according to claim 1, the complicated Gold Ore of arsenic; It is characterized in that the arsenic of indication of the present invention is the arsenic in the mispickel, copper is meant the copper in the cupric sulfide; Gold is present in the ore with any form, and its carrier is at least a kind of in mispickel, cupric sulfide, the gangue.
3. the technology of a kind of Treatment of Copper according to claim 1 and 2, the complicated Gold Ore of arsenic is characterized in that described gravity treatment is:
(1) the used equipment of gravity treatment is shaking table, spiral chute or Nelson's preparator;
(2) feed particle size of ore gravity treatment is that-250 μ m are to-104 μ m;
(3) ore pulp of the ore gravity treatment concentration of sizing mixing is 10-15% (weight percent).
4. according to the technology of claim 1 or 2 or 3 described Treatment of Copper, the complicated Gold Ore of arsenic, it is characterized in that,
(1) the gravity treatment chats adopts flotation that a copper mineral or a year auricupride thing are reclaimed;
(2) gravity treatment chats (ore deposit is given in flotation) feed particle size is-74 μ m 55%-95% (weight percent);
(3) the flotation pulp concentration of gravity treatment chats (ore deposit is given in flotation) is 25-30% (weight percent);
(4) flotation reagent of gravity treatment chats (ore deposit is given in flotation) is O-sec.-propyl-N-ethyl thionic carbamate, sodium xanthonate, cupral or ammonium dibutyldithiophosphate; Or wherein two kinds be used (proportioning is weight ratio 1: 1), the total consumption of medicament is 30-75g/t;
(5) flotation time of gravity treatment chats (ore deposit is given in flotation) is 12-20 minute.
5. according to the technology of claim 1 or 2 or 3 or 4 described Treatment of Copper, the complicated Gold Ore of arsenic, it is characterized in that gravity tailings adopts:
(1) gravity tailings adopts cyaniding to leach the micro-fine-grained gold that extracts in the gangue.
(2) liquid-solid ratio of gravity tailings entering cyaniding leaching is 1.5: 1-4: 1 (weight ratio);
(3) feed particle size of gravity tailings entering cyaniding leaching is-74 μ m 60%～-44 μ m 95% (weight ratio);
(4) the protection alkali before gravity tailings entering cyaniding is leached is lime, yellow soda ash, and consumption is 3-5kg/t;
(5) the sodium cyanide consumption of gravity tailings entering leaching is 0.5kg/t-3kg/t; Extraction time is 12-72h.
6. according to the technology of claim 1 or 2 or 3 or 4 or 5 described Treatment of Copper, the complicated Gold Ore of arsenic, the maturing temperature that it is characterized in that gravity concentrate (mispickel) is 500-750 ℃, and the temperature of receiving the low temperature cloth bag of arsenic is 90-150 ℃.
7. according to the technology of claim 1 or 2 or 3 or 4 or 5 described Treatment of Copper, the complicated Gold Ore of arsenic, it is characterized in that, carry a golden calcining and adopt:
(1) cyaniding of gravity concentrate calcining is leached and is carried gold (if do not carry gold in the mispickel, then calcining abandons), and the granularity of leaching is-74 μ m 95%～-44 μ m 95%;
(2) liquid-solid ratio of gravity concentrate calcining cyaniding leaching is 1.5: 1-4: 1;
(3) the protection alkali before the cyaniding of gravity concentrate calcining is leached is lime, yellow soda ash, and consumption is 3-5kg/t;
(4) gravity concentrate calcining cyaniding leaching sodium cyanide consumption is 3kg/t-6kg/t, and extraction time is 24-72h.
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| CN2010102580291A CN102373337A (en) | 2010-08-19 | 2010-08-19 | Process for processing complex gold ore containing copper and arsenic |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974451A (en) * | 2012-10-12 | 2013-03-20 | 金川集团股份有限公司 | Method for improving recovery rate of copper nickel associated precious metals |
| CN104117433A (en) * | 2014-07-23 | 2014-10-29 | 紫金矿业集团股份有限公司 | Method for selecting copper concentrate from copper ore with high sulfur and arsenic content |
| CN104745833A (en) * | 2013-12-25 | 2015-07-01 | 北京有色金属研究总院 | Treatment process for high-mud gold ores |
| CN104789790A (en) * | 2015-04-08 | 2015-07-22 | 吉林吉恩镍业股份有限公司 | Lead-free smelting process for leaded gold concentrate obtained through Knelson concentration |
| CN107199116A (en) * | 2017-06-09 | 2017-09-26 | 烟台金奥冶炼有限公司 | A kind of carbon containing Gold Concentrate under Normal Pressure two-stage roasting slag selects carbon method |
| CN110819819A (en) * | 2019-11-19 | 2020-02-21 | 长春黄金研究院有限公司 | Comprehensive recovery method of toxic sand gold-loaded micro-fine particle immersion type gold ore |
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| CN1904094A (en) * | 2006-08-03 | 2007-01-31 | 山东国大黄金股份有限公司 | Method of extracting gold and silver from arsenic containing aurin ore |
| CN101745458A (en) * | 2008-12-16 | 2010-06-23 | 北京有色金属研究总院 | Separation process for low-grade Cu-Pb-Zn complex multi-metal sulphide ore |
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2010
- 2010-08-19 CN CN2010102580291A patent/CN102373337A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1904094A (en) * | 2006-08-03 | 2007-01-31 | 山东国大黄金股份有限公司 | Method of extracting gold and silver from arsenic containing aurin ore |
| CN101745458A (en) * | 2008-12-16 | 2010-06-23 | 北京有色金属研究总院 | Separation process for low-grade Cu-Pb-Zn complex multi-metal sulphide ore |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974451A (en) * | 2012-10-12 | 2013-03-20 | 金川集团股份有限公司 | Method for improving recovery rate of copper nickel associated precious metals |
| CN104745833A (en) * | 2013-12-25 | 2015-07-01 | 北京有色金属研究总院 | Treatment process for high-mud gold ores |
| CN104745833B (en) * | 2013-12-25 | 2017-12-26 | 北京有色金属研究总院 | A kind of handling process for high golden paint ore |
| CN104117433A (en) * | 2014-07-23 | 2014-10-29 | 紫金矿业集团股份有限公司 | Method for selecting copper concentrate from copper ore with high sulfur and arsenic content |
| CN104117433B (en) * | 2014-07-23 | 2016-08-24 | 紫金矿业集团股份有限公司 | The method choosing copper concentrate from the copper mine that sulfur arsenic content is high |
| CN104789790A (en) * | 2015-04-08 | 2015-07-22 | 吉林吉恩镍业股份有限公司 | Lead-free smelting process for leaded gold concentrate obtained through Knelson concentration |
| CN107199116A (en) * | 2017-06-09 | 2017-09-26 | 烟台金奥冶炼有限公司 | A kind of carbon containing Gold Concentrate under Normal Pressure two-stage roasting slag selects carbon method |
| CN110819819A (en) * | 2019-11-19 | 2020-02-21 | 长春黄金研究院有限公司 | Comprehensive recovery method of toxic sand gold-loaded micro-fine particle immersion type gold ore |
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Application publication date: 20120314 |