CN105289850A - Independent silver ore flotation method - Google Patents
Independent silver ore flotation method Download PDFInfo
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- CN105289850A CN105289850A CN201510787734.3A CN201510787734A CN105289850A CN 105289850 A CN105289850 A CN 105289850A CN 201510787734 A CN201510787734 A CN 201510787734A CN 105289850 A CN105289850 A CN 105289850A
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- silver
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- ore
- independent silver
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 76
- 239000004332 silver Substances 0.000 title claims abstract description 76
- 238000005188 flotation Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000012141 concentrate Substances 0.000 claims abstract description 47
- 238000000227 grinding Methods 0.000 claims description 21
- 229910001739 silver mineral Inorganic materials 0.000 claims description 19
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 12
- 229940083025 silver preparation Drugs 0.000 claims description 12
- 238000007667 floating Methods 0.000 claims description 11
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 claims description 9
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 8
- 239000012991 xanthate Substances 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical group CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010494 dissociation reaction Methods 0.000 claims description 7
- 230000005593 dissociations Effects 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 claims description 5
- 229910052949 galena Inorganic materials 0.000 claims description 5
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- CONMNFZLRNYHIQ-UHFFFAOYSA-N 3-methylbutoxymethanedithioic acid Chemical compound CC(C)CCOC(S)=S CONMNFZLRNYHIQ-UHFFFAOYSA-N 0.000 claims description 2
- UOJYYXATTMQQNA-UHFFFAOYSA-N Proxan Chemical compound CC(C)OC(S)=S UOJYYXATTMQQNA-UHFFFAOYSA-N 0.000 claims description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 description 14
- 239000011707 mineral Substances 0.000 description 14
- 238000002386 leaching Methods 0.000 description 10
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 229910001923 silver oxide Inorganic materials 0.000 description 5
- 238000005987 sulfurization reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 150000003346 selenoethers Chemical class 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910052569 sulfide mineral Inorganic materials 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910052946 acanthite Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052592 oxide mineral Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to an independent silver ore flotation method and belongs to the ore dressing technologies. The independent silver ore flotation method includes the step that lead concentrate is used as a carrier for flotation of independent silver ore, i.e., independent silver ore is ground and then placed into a flotation tank, the lead concentrate is added and stirred fully, then an adjusting agent and a collecting agent are added, and silver is effectively concentrated through flotation. By means of the independent silver ore flotation method, independent silver ore resources difficult to process currently can be effectively recycled, the silver grade and the silver recycling rate are greatly improved, and the independent silver ore flotation method has good economic benefits.
Description
Technical field
The present invention relates to a kind of method for floating of independent silver deposit, belong to technical field of beneficiation.
Background technology
Independent Ag deposit is newfound deposit type in recent decades, and the silver in independent Ag deposit mainly exists with the Independent Mineral form of silver, mainly comprises the complicated sulfosalt of silver, sulfide, native element, interphase, selenides and halide.But this ore composition is complicated, and silver ore kind is many, and grade is low, and disseminated grain size is superfine, washability difference is large, and association non-ferrous metal content is extremely low, and these association non-ferrous metals exist mainly with sulfide mineral form, and what have is oxidized to oxide mineral.For this independent silver deposit, improve and select smelting comprehensive recovery difficulty larger.
In independent silver deposit, argentiferous grade is low, and direct metallurgical recovery of non-ferrous metal of association does not have economic worth again, so adopt direct Metallurgical processing not have economic benefit.Meanwhile, the Wet-process metallurgy method of silver mainly contains Cyanide Leaching, thiocarbamide leachings, villaumite leachings, thiosulfate leaching etc., but the leaching characteristic of silver compares golden poor, and no matter which kind of method, all needs enhancements, so the leaching rate of silver is all lower.For low-grade independent silver deposit raw ore, direct leaching is also difficult to the leaching rate technical indicator obtained.Therefore a large amount of gangues is abandoned in ore dressing, and obtaining the silver preparation concentrate that quantity is far smaller than raw ore, then use metallurgical method process, is the inevitable mode of this silver-colored resource recycling.
Ore dressing reclaim independent silver deposit silver-colored in, extensively adopt xanthate and black powder mixing collecting silver mineral both at home and abroad, wherein, the nonferrous metal sulfide mineral of xanthate to argentiferous has stronger collecting performance, can by reclaiming extracting sulfide minerals of nonferrous and silver that collecting wherein comprises, and black powder has collecting ability to independent silver sulfide, native silver, silver-colored interphase, selenides and halide, the mode of this mixed reagent can obtain certain effect.But however, the rate of recovery of independent silver deposit is still very low.
For the process of independent silver deposit, because research work is all based on ore properties, it is all applicable for being difficult to a kind of general method to all independent silver deposits, so not yet find that there is the patent report of this respect.But for the silver preparation concentrate that flotation from independent silver deposit obtains, the patent No. is the difficulty leaching independent silver deposit flotation of silver concentrate extraction silver of 95119869.6 and the method for gold, key step carries out oxidizing roasting under Additive, then leach in advance at Dilute Sulphuric Acid Medium, can by the silver of 85% ~ 95%, copper stripping.Containing the concentrate preimpregnation slag of Jin Bugao, leach residual silver with weak aqua ammonia; Gold and residual silver is extracted containing the high concentrate preimpregnation slag thiocarbamide of gold or Cymag.Silver, gold leaching rate 90% ~ 95%, copper >=90%.
So, for unmanageable independent silver deposit, adopt direct Metallurgical processing there is no economic benefit, adopt the conventional ore-dressing technique rate of recovery low, cause such silver ore to be difficult to be recycled efficiently.The use lead concentrate arrived involved in the present invention is as carrier, and the method for flotation independent silver deposit can reclaim the silver in independent silver deposit efficiently by ore dressing, obtain qualified silver preparation concentrate, follow-up again by Metallurgical processing silver preparation concentrate, gives full play to respective advantage.The present invention is the effective means improving independent silver deposit resource utilization.
Summary of the invention
The object of the invention is to solve independent silver deposit silver containing mineral kind many, embedding cloth relation is complicated, and parcel is serious, difficulty is reclaimed in flotation, the technical problems such as the rate of recovery is low, propose a kind of difficult independent silver deposit resource high-efficiency recoverying and utilizing method, improve the organic efficiency of difficult Silver mineral deposit.
The method for floating of independent silver deposit of the present invention, completes according to following steps:
(1) ore grinding: by independent silver deposit ore grinding to silver mineral 80% ~ 90% monomer dissociation wherein;
(2) to size mixing flotation: the ore pulp after ore grinding is added in flotation cell, add lead concentrate and fully stir, add vulcanized sodium successively, xanthate, butyl ammonium aerofloat air flotation obtain silver preparation concentrate.
Preferably, independent silver deposit silver content of the present invention is 100g/t ~ 400g/t.
Preferably, lead concentrate of the present invention to be plumbous content be 45% ~ 65% cerussite concentrate, galena concentrate or both bulk concentrates; Lead concentrate consumption is 1% ~ 5% of selected independent silver deposit quality.
Preferably, amount of sodium sulfide of the present invention is at 500g/t ~ 3000g/t.
Preferably, xanthate of the present invention is the one in butyl xanthate, amyl group xanthate, isoamyl xanthate, isopropyl xanthate, and consumption is 50g/t ~ 300g/t.
Preferably, butyl ammonium aerofloat consumption of the present invention is 50g/t ~ 300g/t.
Principle of the present invention: in independent silver deposit, the grade of silver is lower, and association non-ferrous metal is few, the embedding cloth relation between mineral is complicated, and silver mineral is difficult to fully and floating agent effect and floating; Add lead concentrate in flotation pulp after, lead minerals and silver mineral collide and form floc sedimentation or particulate silver mineral is adsorbed onto on lead minerals, are easy to have an effect with collecting agent and float after forming larger particle.Sufficient stirring action is the necessary condition that lead minerals carrier flotation obtains better effects, because this is conducive to the chance that increase lead minerals contacts with silver mineral.
Beneficial effect of the present invention is:
By utilizing lead concentrate as carrier mineral, effectively can improve the floatability of silver mineral, making the grade of silver in independent silver deposit and the rate of recovery have obvious lifting, improve the utilization ratio of silver-colored resource in independent silver deposit; The product that the present invention obtains is qualified silver preparation concentrate, for follow-up Metallurgical processing provides the raw material of high-quality, reduces metallurgical cost; Solve the direct Metallurgical processing of independent silver deposit and there is no economic benefit, a difficult problem that the conventional flotation rate of recovery is low.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, but protection scope of the present invention is not limited to described content.
Embodiment 1
The independent silver deposit of argentiferous 140g/t is put into grinding machine, and ore grinding (passing through wet grinding) is to silver mineral 80% monomer dissociation wherein; Ore pulp after ore grinding is added in flotation cell, add plumbous content be 50% galena concentrate (addition of lead ore concentrate is 3% of independent silver deposit quality) fully stir, add the vulcanized sodium of 2000g/t, sulfuration silver oxide mineral wherein, add the butyl xanthate of 50g/t and the butyl ammonium aerofloat of 200g/t, as the collecting agent of silver mineral, roughly select through three times, once purging selection, triple cleaning, obtains silver preparation concentrate product.
In the concentrate obtained, silver-colored grade is 5150g/t, and the rate of recovery is 71%; Plumbous grade is 48%, and the rate of recovery is 62%.
Embodiment 2
The independent silver deposit of argentiferous 100g/t is put into grinding machine, and ore grinding is to silver mineral 85% monomer dissociation wherein.Ore pulp after ore grinding is added in flotation cell, add plumbous content be 65% cerussite concentrate (addition of lead ore concentrate is 1% of independent silver deposit quality) fully stir, add the vulcanized sodium of 1500g/t, sulfuration silver oxide mineral wherein, add the butyl xanthate of 150g/t and the butyl ammonium aerofloat of 150g/t, as the collecting agent of silver mineral, roughly select through three times, once purging selection, triple cleaning, obtains silver preparation concentrate product.
In the concentrate obtained, silver-colored grade is 5900g/t, and the rate of recovery is 67%; Plumbous grade is 42%, and the rate of recovery is 73%.
Embodiment 3
The independent silver deposit of argentiferous 170g/t is put into grinding machine, and ore grinding is to silver mineral 90% monomer dissociation wherein.Ore pulp after ore grinding is added in flotation cell, add plumbous content be 58% lead ore concentrate (addition of lead ore concentrate is 4% of independent silver deposit quality) fully stir, wherein, in lead ore concentrate, galena accounts for 70%, cerussite accounts for 30%, adds the vulcanized sodium of 500g/t, sulfuration silver oxide mineral wherein, add the butyl xanthate of 200g/t and the butyl ammonium aerofloat of 50g/t, as the collecting agent of silver mineral, roughly select through three times, once purging selection, triple cleaning, obtains silver preparation concentrate product.
In the concentrate obtained, silver-colored grade is 4860g/t, and the rate of recovery is 75%; Plumbous grade is 54%, and the rate of recovery is 61%.
Embodiment 4
The independent silver deposit of argentiferous 400g/t is put into grinding machine, and ore grinding is to silver mineral 87% monomer dissociation wherein.Ore pulp after ore grinding is added in flotation cell, add lead content be 45% lead ore concentrate (addition of lead ore concentrate is 5% of independent silver deposit quality) fully stir, wherein, in lead ore concentrate, galena accounts for 50%, cerussite accounts for 50%, adds the vulcanized sodium of 3000g/t, sulfuration silver oxide mineral wherein, add the butyl xanthate of 300g/t and the butyl ammonium aerofloat of 300g/t, as the collecting agent of silver mineral, roughly select through three times, once purging selection, triple cleaning, obtains silver preparation concentrate product.
In the concentrate obtained, silver-colored grade is 7820g/t, and the rate of recovery is 71%; Plumbous grade is 40%, and the rate of recovery is 65%.
Embodiment 5
The independent silver deposit of argentiferous 170g/t is put into grinding machine, and ore grinding is to silver mineral 90% monomer dissociation wherein.Ore pulp after ore grinding is added in flotation cell, adds the vulcanized sodium of 500g/t, sulfuration silver oxide mineral wherein, add the butyl xanthate of 200g/t and the butyl ammonium aerofloat of 50g/t, as the collecting agent of silver mineral, roughly select through three times, once purging selection, triple cleaning, obtains silver preparation concentrate product.
In the concentrate obtained, silver-colored grade is 2820g/t, and the rate of recovery is 37%.
Claims (6)
1. a method for floating for independent silver deposit, is characterized in that, completes according to following steps:
(1) ore grinding: by independent silver deposit ore grinding to silver mineral 80% ~ 90% monomer dissociation wherein;
(2) to size mixing flotation: the ore pulp after ore grinding is added in flotation cell, add lead concentrate and fully stir, add vulcanized sodium successively, xanthate, butyl ammonium aerofloat air flotation obtain silver preparation concentrate.
2. the method for floating of independent silver deposit according to claim 1, is characterized in that: described independent silver deposit silver content is 100g/t ~ 400g/t.
3. the method for floating of independent silver deposit according to claim 1, is characterized in that: described lead concentrate to be plumbous content be 45% ~ 65% cerussite concentrate, galena concentrate or both bulk concentrates; Lead concentrate consumption is 1% ~ 5% of independent silver deposit quality.
4. the method for floating of independent silver deposit according to claim 1, is characterized in that: described amount of sodium sulfide is at 500g/t ~ 3000g/t.
5. the method for floating of independent silver deposit according to claim 1, is characterized in that: described xanthate is the one in butyl xanthate, amyl group xanthate, isoamyl xanthate, isopropyl xanthate, and consumption is 50g/t ~ 300g/t.
6. the method for floating of independent silver deposit according to claim 1, is characterized in that: described butyl ammonium aerofloat consumption is 50g/t ~ 300g/t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787734.3A CN105289850A (en) | 2015-11-17 | 2015-11-17 | Independent silver ore flotation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787734.3A CN105289850A (en) | 2015-11-17 | 2015-11-17 | Independent silver ore flotation method |
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| Publication Number | Publication Date |
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| CN105289850A true CN105289850A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510787734.3A Pending CN105289850A (en) | 2015-11-17 | 2015-11-17 | Independent silver ore flotation method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404690A (en) * | 2019-07-22 | 2019-11-05 | 广东省资源综合利用研究所 | A method of recycling independent silver deposit object from silver-colored tin mineral intergrowth |
| CN110420760A (en) * | 2019-07-22 | 2019-11-08 | 广东省资源综合利用研究所 | A kind of ore dressing recovery method of aphthonite |
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| CN103551253A (en) * | 2013-11-08 | 2014-02-05 | 株洲市湘麒科技开发有限公司 | Silver floatation production process method for zinc hydrometallurgy acid leaching pulp |
| CN103551254A (en) * | 2013-11-06 | 2014-02-05 | 株洲市湘麒科技开发有限公司 | Inorganic floatation carrier for silver floatation of zinc hydrometallurgy acid leaching pulp |
| CN103691572A (en) * | 2013-12-06 | 2014-04-02 | 西北矿冶研究院 | Collecting agent for improving beneficiation index of associated gold and silver |
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2015
- 2015-11-17 CN CN201510787734.3A patent/CN105289850A/en active Pending
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| CN1562492A (en) * | 2004-04-06 | 2005-01-12 | 南京栖霞山锌阳矿业有限公司 | Technique for fast selecting plumbum and zinc for sulphidic ore of plumbum-zinc |
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| CN103551253A (en) * | 2013-11-08 | 2014-02-05 | 株洲市湘麒科技开发有限公司 | Silver floatation production process method for zinc hydrometallurgy acid leaching pulp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110404690A (en) * | 2019-07-22 | 2019-11-05 | 广东省资源综合利用研究所 | A method of recycling independent silver deposit object from silver-colored tin mineral intergrowth |
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| CN110420760B (en) * | 2019-07-22 | 2021-03-12 | 广东省科学院资源综合利用研究所 | Beneficiation and recovery method of silver copper ore |
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Application publication date: 20160203 |
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