CN103447155A - Ore dressing method for blue chalcocite and pyrite and collecting agent used in ore dressing method - Google Patents
Ore dressing method for blue chalcocite and pyrite and collecting agent used in ore dressing method Download PDFInfo
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- CN103447155A CN103447155A CN2013103721144A CN201310372114A CN103447155A CN 103447155 A CN103447155 A CN 103447155A CN 2013103721144 A CN2013103721144 A CN 2013103721144A CN 201310372114 A CN201310372114 A CN 201310372114A CN 103447155 A CN103447155 A CN 103447155A
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Abstract
The invention discloses a collecting agent for beneficiation of blue chalcocite and pyrite and beneficiation thereofThe method belongs to the technical field of mineral flotation separation processes. The invention adopts the flotation under the condition of low calcium, the ester-112 has better selectivity to the blue chalcocite, and the situation that the activity of the blue chalcocite is poor and the copper recovery rate is not high is avoided; using Ca (ClO)2+ lime inhibits pyrite, reduces Cu+To avoid partial pyrite being coated with Cu+Activating; under the condition of low calcium, the pipeline calcium accumulation is avoided, and the pollution of the waste water to the mine is reduced to a certain extent; the middling regrinding selection enables the blue chalcocite mineral and the pyrite to be fully dissociated, and energy conservation and emission reduction of the mine are achieved. The process can obtain high economic and technical indexes.
Description
Technical field
The invention belongs to mineral floating separation process technique field, be specifically related in a kind of nonferrous metals ore sorting process collecting agent and beneficiation method thereof for alpha chalcocite and pyrite ore dressing.
Technical background
At present, difficulty selects copper sulphur ore deposit to refer to that high-sulfur hangs down copper, high oxidation rate, the secondary degree of copper mineral is higher, the ore that the pyrite activity is stronger, the secondary blue vitreous copper that disseminated grain size is thinner in the nonferrous metals ore floatation process separates the following problem that mainly exists with pyrite: 1) adopt a large amount of lime to produce many baleful consequences: pipeline scale, easily stop up, mine wastewater is seriously polluted, is unfavorable for having the comprehensive recovery of valency accompanying element; 2) the easy oxidation Decomposition 4Cu of the secondary alpha chalcocite thing of such ore
2s+9O
2=4CuSO
4+ 2Cu
2o, cause in ore pulp dissolving a large amount of Cu
+, pyrite is activated, be difficult to realize copper sulphur content from; 3) secondary alpha chalcocite itself is active poor, easily is lost in mine tailing, causes the rate of recovery on the low side; 4), because disseminated grain size is thinner, the ore grinding cost is higher.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of this invention is to provide in secondary alpha chalcocite that a kind of disseminated grain size is thinner and pyrite separation process under low calcium condition, after adding secondary alpha chalcocite and pyrite and all having and select effect, follow-up segregative collecting agent to carry out collecting, add Ca (ClO)
2reach lime pyrite is suppressed, and carry out chats and regrind, finally realize collecting agent and beneficiation method thereof that the thinner secondary alpha chalcocite of granularity separates with pyrite.
For solving technical problem of the present invention, adopt following technical scheme:
Technical scheme one, a kind of collecting agent for alpha chalcocite and pyrite beneficiation method, its component is as follows:
20 parts-40 parts of butyl xanthates
Parts-30 parts, ester-112 15
Wherein ester-112 are by O-isopropyl-N-ethyl thionic carbamate, N, and N-diethyldithiocar bamic acid propionitrile ester, ammonium dibutyl dithiophosphate and J-622 form by 1:1.05:1:1.02 volume ratio proportioning.
Technical scheme two, a kind of alpha chalcocite and pyrite beneficiation method, concrete steps are as follows:
Step 1: add the lime of 1000～3000 grams/ton raw ore in raw ore after, by the levigate mass concentration that makes of ball mill, be 30～35% ore pulps, then add the described collecting agent of the claims 1 to stir after 2～3 minutes and carry out the mixed choosing of copper sulphur, obtain copper sulphur rough concentrate;
Step 2: be through twice selected copper-sulfide mixed concentrate that obtains under 20～30% conditions in copper sulphur rough concentrate ore pulp mass concentration;
Step 3: be to add Ca (ClO) under 20～30% conditions in copper sulfide concentrate ore pulp mass concentration
2100～500 grams/ton raw ore and lime 1000～6000 grams/ton raw ore stirred after 3～7 minutes, add again the ester-112 in 2～5 grams/ton raw ore the claims 1, stir after 2～3 minutes carry out copper sulphur content from, obtain copper rough concentrate and sulphur rough concentrate, the copper rough concentrate is through 1～2 selected output copper concentrate, and the sulphur rough concentrate is through primary cleaning output sulphur concentrate;
Step 4: selected 1 mine tailing of copper selected 1 and sulphur, through after being milled to fineness and being 85～95%-0.044mm, returns to copper sulphur content from roughly selecting.
Adding butyl xanthate in raw ore per ton is that 20g-40g, ester-112 are 15g-30g.
The mineral that the fineness of described step 1 Minerals is 0.074mm account for the 65%-75% of whole mineral.
In described step 1, the flotation time of the mixed choosing of copper sulphur is 2～8 minutes.
In described step 3 copper sulphur content from flotation time be 2～5 minutes.
Reached by above four steps the purpose that the thinner secondary alpha chalcocite of disseminated grain size separates with pyrite.
The present invention adopts and carry out flotation under low calcium condition, and ester-112 pair alpha chalcocite has better selective, avoids alpha chalcocite itself active poor, the not high situation of copper recovery; Adopt Ca (ClO)
2+ lime is suppressed pyrite, has reduced Cu
+activity, avoid part pyrite by Cu
+activation; Under low calcium condition, avoid pipeline knot calcium, to a certain degree reduced waste water to mine pollution; The selection that chats is regrinded, dissociated alpha chalcocite thing and pyrite fully, realized the Mine Energy Saving reduction of discharging.Adopt this technique can obtain higher economic and technical norms.
The specific embodiment
embodiment 1
A kind of collecting agent for alpha chalcocite and pyrite beneficiation method, its component is as follows:
20 parts of butyl xanthates, ester-112 15 part, wherein ester-112 are by O-isopropyl-N-ethyl thionic carbamate, N, and N-diethyldithiocar bamic acid propionitrile ester, ammonium dibutyl dithiophosphate and J-622 form by 1:1.05:1:1.02 volume ratio proportioning.
A kind of alpha chalcocite and pyrite beneficiation method, to certain disseminated grain size, thinner secondary alpha chalcocite carries out copper and pyritous separating flotation, and this ore head grade copper is 0.40%, and sulphur is 6.10%.Add lime 2000 grams in 1 ton of raw ore after, be milled to by wet ball mill the mineral that fineness is 0.074mm and account for 75% of whole mineral, the ore pulp mass concentration of gained is 32%, add collecting agent butyl xanthate 30 grams and ester-112 20 gram under this pulp density condition, stir after 2 minutes and carry out the mixed choosing of copper sulphur, flotation time is 6 minutes, obtains copper sulphur rough concentrate; At copper sulphur rough concentrate, in the ore pulp mass concentration, be through twice selected copper-sulfide mixed concentrate that obtains under 28% condition; Copper-sulfide mixed concentrate is to add Ca (ClO) under 25% condition in the ore pulp mass concentration
2200 grams and lime 4000 grams, after then stirring 6 minutes, then add ester-112 3 gram, stir after 2 minutes carry out copper sulphur content from, flotation time is 4 minutes, obtains copper rough concentrate and sulphur rough concentrate, the copper rough concentrate is through 2 selected output copper concentrates, and the sulphur rough concentrate is through 1 selected output sulphur concentrate; Selected 1 mine tailing of copper selected 1 and sulphur, through after being milled to material that fineness is 0.044mm and accounting for 90%, returns to copper sulphur content from the technological process of roughly selecting.Having obtained the copper concentrate copper grade is 22.81%, and copper recovery is 70.01%; Sulphur concentrate sulphur grade is 38.45%, the mineral processing index that sulfur recovery rate is 70.25%.
In order to further illustrate the beneficial effect of the present embodiment, below done two groups of check experiments:
Reference examples 1
In embodiment 1, adopt butyl xanthate and terpenic oil as blue aura copper and pyritous collecting agent and foaming agent, Ca (ClO)
2+ lime carries out flotation as pyritous inhibitor and obtains copper concentrate, and the copper concentrate copper grade obtained is 18.42%, and copper recovery is 64.25%; Sulphur concentrate sulphur grade is 35.15%, and sulfur recovery rate is 68.53%.
Reference examples 2
Ore in embodiment 1 adopts butyl xanthate, ester-112 as blue aura copper and pyritous collector and frother, and lime carries out flotation as pyritous inhibitor and obtains copper concentrate, and the copper concentrate copper grade obtained is 19.28%, and copper recovery is 66.25%; Sulphur concentrate sulphur grade is 36.24%, and sulfur recovery rate is 68.98%.
embodiment 2
A kind of collecting agent for alpha chalcocite and pyrite beneficiation method, its component is as follows:
40 parts of butyl xanthates, ester-112 25 part, wherein ester-112 are by O-isopropyl-N-ethyl thionic carbamate, N, and N-diethyldithiocar bamic acid propionitrile ester, ammonium dibutyl dithiophosphate and J-622 form by 1:1.05:1:1.02 volume ratio proportioning.
A kind of alpha chalcocite and pyrite beneficiation method, to certain disseminated grain size, thinner secondary alpha chalcocite carries out copper and pyritous separating flotation, and this ore head grade copper is 0.35%, and sulphur is 4.89%.Add lime 3000 grams in 1 ton of raw ore after, be milled to by wet ball mill the mineral that fineness is 0.074mm and account for 75% of whole mineral, the ore pulp mass concentration of gained is 32%, add butyl xanthate 30 grams and ester-112 25 gram under this pulp density condition, stir after 2 minutes and carry out the mixed choosing of copper sulphur, flotation time is 7 minutes, obtains copper sulphur rough concentrate; At copper sulphur rough concentrate, in the ore pulp mass concentration, be through twice selected copper-sulfide mixed concentrate that obtains under 27% condition; Copper-sulfide mixed concentrate is to add Ca (ClO) under 24% condition in the ore pulp mass concentration
2300 grams and lime 6000 grams, after then stirring 6 minutes, then add ester-112 5 gram, stir after 2 minutes carry out copper sulphur content from, flotation time is 5 minutes, obtains copper rough concentrate and sulphur rough concentrate, the copper rough concentrate is through 2 selected output copper concentrates, and the sulphur rough concentrate is through 1 selected output sulphur concentrate; Selected 1 mine tailing of copper selected 1 and sulphur, through after being milled to material that fineness is 0.044mm and accounting for 92%, returns to copper sulphur content from the technological process of roughly selecting.Having obtained the copper concentrate copper grade is 21.89%, and copper recovery is 67.43%; Sulphur concentrate sulphur grade is 37.94%, the mineral processing index that sulfur recovery rate is 68.77%.
In order to further illustrate the beneficial effect of the present embodiment, below done two groups of check experiments:
Reference examples 1
Ore in embodiment 2 adopts butyl xanthate and terpenic oil as blue aura copper and pyritous collecting agent and foaming agent, Ca (ClO)
2+ lime carries out flotation as pyritous inhibitor and obtains copper concentrate, and the copper concentrate copper grade is 19.99%, and copper recovery is 64.22%; Sulphur concentrate sulphur grade is 36.84%, and sulfur recovery rate is 68.01%.
Reference examples 2
Ore in embodiment 2 adopts butyl xanthate and ester-112 as blue aura copper and pyritous collector and frother, and lime carries out flotation as pyritous inhibitor and obtains copper concentrate, and the copper concentrate copper grade is 20.01%, and copper recovery is 65.24%; Sulphur concentrate sulphur grade is 37.01%, and sulfur recovery rate is 67.69%.
embodiment 3
A kind of collecting agent for alpha chalcocite and pyrite beneficiation method, its component is as follows:
Butyl xanthate is 30 parts, ester-112 are 30 parts, wherein ester-112 are by O-isopropyl-N-ethyl thionic carbamate, N, and N-diethyldithiocar bamic acid propionitrile ester, ammonium dibutyl dithiophosphate and J-622 form by 1:1.05:1:1.02 volume ratio proportioning.
A kind of alpha chalcocite and pyrite beneficiation method, to certain disseminated grain size, thinner secondary alpha chalcocite carries out copper and pyritous separating flotation, and this ore head grade copper is 3.92%, and sulphur is 38.84%.Add lime 2000 grams in 1 ton of raw ore after, be milled to by wet ball mill the mineral that fineness is 0.074mm and account for 75% of whole mineral, the ore pulp mass concentration of gained is 25%, add collecting agent butyl xanthate 30 grams and ester-112 20 gram under this pulp density condition, wherein ester-112 are by O-isopropyl-N-ethyl thionic carbamate, N, and N-diethyldithiocar bamic acid propionitrile ester, ammonium dibutyl dithiophosphate and J-622 form by 1:1.05:1:1.02 volume ratio proportioning.Stir after 2 minutes and carry out the mixed choosing of copper sulphur, flotation time is 6 minutes, obtains copper sulphur rough concentrate; At copper sulphur rough concentrate, in the ore pulp mass concentration, be through twice selected copper-sulfide mixed concentrate that obtains under 28% condition; Copper-sulfide mixed concentrate is to add Ca (ClO) under 25% condition in the ore pulp mass concentration
2400 grams and lime 5000 grams, after then stirring 6 minutes, then add ester-112 3 gram, stir after 2 minutes carry out copper sulphur content from, flotation time is 5 minutes, obtains copper rough concentrate and sulphur rough concentrate, the copper rough concentrate is through 2 selected output copper concentrates, and the sulphur rough concentrate is through 1 selected output sulphur concentrate; Selected 1 mine tailing of copper selected 1 and sulphur, through after being milled to material that fineness is 0.044mm and accounting for 92%, returns to copper sulphur content from the technological process of roughly selecting.Having obtained the copper concentrate copper grade is 21.87%, and copper recovery is 85.44%; Sulphur concentrate sulphur grade is 36.81%, the mineral processing index that sulfur recovery rate is 84.48%.
In order to further illustrate the beneficial effect of the present embodiment, below done one group of check experiment:
Reference examples 1
Ore in embodiment 3 adopts ester-112 as blue aura copper collector and frother, Ca (ClO)
2+ lime is as pyritous inhibitor, and it is that 90%-0.044mm(copper selected 1 and selected 1 mine tailing of sulphur are not regrinded that copper sulphur mixed crude concentrate is milled to fineness) carry out flotation and obtain copper concentrate, the copper concentrate copper grade is 21.78%, copper recovery is 85.36%; Sulphur concentrate sulphur grade is 36.89%, and sulfur recovery rate is 84.50%.
Claims (6)
1. the collecting agent for alpha chalcocite and pyrite beneficiation method is characterized in that its component is as follows:
20 parts-40 parts of butyl xanthates
Parts-30 parts, ester-112 15
Wherein ester-112 are by O-isopropyl-N-ethyl thionic carbamate, N, and N-diethyldithiocar bamic acid propionitrile ester, ammonium dibutyl dithiophosphate and J-622 form by 1:1.05:1:1.02 volume ratio proportioning.
2. an alpha chalcocite and pyrite beneficiation method is characterized in that its step is as follows:
Step 1: add the lime of 1000～3000 grams/ton raw ore in raw ore after, by the levigate mass concentration that makes of wet ball mill, be 30～35% ore pulps, then add the described collecting agent of the claims 1 to stir after 2～3 minutes and carry out the mixed choosing of copper sulphur, obtain copper sulphur rough concentrate;
Step 2: be through twice selected copper-sulfide mixed concentrate that obtains under 20～30% conditions in copper sulphur rough concentrate ore pulp mass concentration;
Step 3: be to add Ca (ClO) under 20～30% conditions in copper sulfide concentrate ore pulp mass concentration
2100～500 grams/ton raw ore and lime 1000～6000 grams/ton raw ore stirred after 3～7 minutes, add again the ester-112 in 2～5 grams/ton raw ore the claims 1, stir after 2～3 minutes carry out copper sulphur content from, obtain copper rough concentrate and sulphur rough concentrate, the copper rough concentrate is through 1～2 selected output copper concentrate, and the sulphur rough concentrate is through primary cleaning output sulphur concentrate;
Step 4: after the mine tailing that the copper rough concentrate produces through primary cleaning through 1～2 selected and sulphur rough concentrate is milled to material that fineness is 0.044mm and accounts for 85～95%, return to copper sulphur content from roughly selecting.
3. a kind of alpha chalcocite according to claim 2 and pyrite beneficiation method is characterized in that: adding butyl xanthate in raw ore per ton is that 20g-40g, ester-112 are 15g-30g.
4. according to the described a kind of alpha chalcocite of claim 2 or 3 and pyrite beneficiation method, it is characterized in that: the mineral that the fineness of described step 1 Minerals is 0.074mm account for the 65%-75% of whole mineral.
5. a kind of alpha chalcocite according to claim 2 and pyrite beneficiation method is characterized in that: in described step 1, the flotation time of the mixed choosing of copper sulphur is 2～8 minutes.
6. a kind of alpha chalcocite according to claim 2 and pyrite beneficiation method is characterized in that: in described step 3 copper sulphur content from flotation time be 2～5 minutes.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259013A (en) * | 2014-08-08 | 2015-01-07 | 西北矿冶研究院 | Inhibitor for separating blue chalcocite from pyrite and beneficiation method thereof |
| CN106391318A (en) * | 2016-04-21 | 2017-02-15 | 西北矿冶研究院 | Method for sorting high-mud copper-lead oxide polymetallic ores |
| CN109482355A (en) * | 2018-11-16 | 2019-03-19 | 西北矿冶研究院 | Low-grade fine-grained copper ore flotation collector |
| CN110947523A (en) * | 2019-11-22 | 2020-04-03 | 西北矿冶研究院 | Collecting agent for recovering copper, lead and zinc minerals from iron ore dressing tailings |
| CN111298982A (en) * | 2020-03-02 | 2020-06-19 | 西部矿业股份有限公司 | High-efficiency collecting agent for copper and gold in copper smelting slag by pyrometallurgy and application of high-efficiency collecting agent |
| CN112517223A (en) * | 2020-10-27 | 2021-03-19 | 西北矿冶研究院 | Enrichment method of low-quality copper-zinc bulk concentrate |
| CN115350816A (en) * | 2022-09-14 | 2022-11-18 | 沈阳有色金属研究院有限公司 | Combined inhibitor for copper-cobalt separation and preparation method thereof |
| CN116273481A (en) * | 2023-02-16 | 2023-06-23 | 长江师范学院 | Flotation process of siderite |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259013A (en) * | 2014-08-08 | 2015-01-07 | 西北矿冶研究院 | Inhibitor for separating blue chalcocite from pyrite and beneficiation method thereof |
| CN106391318A (en) * | 2016-04-21 | 2017-02-15 | 西北矿冶研究院 | Method for sorting high-mud copper-lead oxide polymetallic ores |
| CN106391318B (en) * | 2016-04-21 | 2018-11-09 | 西北矿冶研究院 | Method for sorting high-mud copper-lead oxide polymetallic ores |
| CN109482355A (en) * | 2018-11-16 | 2019-03-19 | 西北矿冶研究院 | Low-grade fine-grained copper ore flotation collector |
| CN110947523A (en) * | 2019-11-22 | 2020-04-03 | 西北矿冶研究院 | Collecting agent for recovering copper, lead and zinc minerals from iron ore dressing tailings |
| CN110947523B (en) * | 2019-11-22 | 2022-05-03 | 西北矿冶研究院 | Collecting agent for recovering copper, lead and zinc minerals from iron ore dressing tailings |
| CN111298982A (en) * | 2020-03-02 | 2020-06-19 | 西部矿业股份有限公司 | High-efficiency collecting agent for copper and gold in copper smelting slag by pyrometallurgy and application of high-efficiency collecting agent |
| CN112517223A (en) * | 2020-10-27 | 2021-03-19 | 西北矿冶研究院 | Enrichment method of low-quality copper-zinc bulk concentrate |
| CN115350816A (en) * | 2022-09-14 | 2022-11-18 | 沈阳有色金属研究院有限公司 | Combined inhibitor for copper-cobalt separation and preparation method thereof |
| CN116273481A (en) * | 2023-02-16 | 2023-06-23 | 长江师范学院 | Flotation process of siderite |
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