CN113070155A - Beneficiation method for complex and difficult-to-treat copper-sulfur sulfide ore - Google Patents
Beneficiation method for complex and difficult-to-treat copper-sulfur sulfide ore Download PDFInfo
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- CN113070155A CN113070155A CN202110373087.7A CN202110373087A CN113070155A CN 113070155 A CN113070155 A CN 113070155A CN 202110373087 A CN202110373087 A CN 202110373087A CN 113070155 A CN113070155 A CN 113070155A
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- copper
- sulfide
- roughing
- sulfur
- scavenging
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- -1 copper-sulfur sulfide Chemical compound 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 26
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910052683 pyrite Inorganic materials 0.000 claims abstract description 59
- 239000011028 pyrite Substances 0.000 claims abstract description 59
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 25
- 239000011707 mineral Substances 0.000 claims abstract description 25
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 13
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 13
- 239000004571 lime Substances 0.000 claims abstract description 13
- 239000012141 concentrate Substances 0.000 claims description 54
- 230000002000 scavenging effect Effects 0.000 claims description 54
- 239000003795 chemical substances by application Substances 0.000 claims description 35
- 229910052802 copper Inorganic materials 0.000 claims description 29
- 239000010949 copper Substances 0.000 claims description 29
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 15
- 229910052569 sulfide mineral Inorganic materials 0.000 claims description 15
- KIACEOHPIRTHMI-UHFFFAOYSA-N o-propan-2-yl n-ethylcarbamothioate Chemical group CCNC(=S)OC(C)C KIACEOHPIRTHMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052717 sulfur Inorganic materials 0.000 claims description 14
- 239000011593 sulfur Substances 0.000 claims description 14
- 239000004088 foaming agent Substances 0.000 claims description 13
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- AAJRIJBGDLLRAE-UHFFFAOYSA-M sodium;butoxymethanedithioate Chemical group [Na+].CCCCOC([S-])=S AAJRIJBGDLLRAE-UHFFFAOYSA-M 0.000 claims description 8
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 6
- 239000001263 FEMA 3042 Substances 0.000 claims description 6
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 6
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 6
- 229940033123 tannic acid Drugs 0.000 claims description 6
- 235000015523 tannic acid Nutrition 0.000 claims description 6
- 229920002258 tannic acid Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 239000012190 activator Substances 0.000 claims 1
- 238000005188 flotation Methods 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 4
- 230000004913 activation Effects 0.000 abstract description 4
- 229910001431 copper ion Inorganic materials 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract description 4
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 4
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052951 chalcopyrite Inorganic materials 0.000 description 2
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910052952 pyrrhotite Inorganic materials 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of mineral separation, and discloses a mineral separation method of complex and difficult-to-treat copper-sulfur sulfide ores. According to the invention, the organic regulator is adsorbed on the surface of the pyrite mineral to form a hydrophilic film which plays a role in inhibiting the pyrite, the electrochemical corrosion effect of the pyrite and the copper sulfide in flotation pulp can be reduced, the activation effect of the dissolution of copper ions in the copper sulfide ore on the pyrite is reduced, and the collection of the copper sulfide ore is enhanced through the synergistic effect of flotation collectors, so that the separation of the copper-sulfur ore is realized under low alkalinity, and the use amount of lime is reduced; the organic regulator used in the invention is easy to degrade and has less environmental pollution.
Description
Technical Field
The invention belongs to the technical field of beneficiation, and particularly relates to a beneficiation method for complex and difficult-to-treat copper-sulfur sulfide ores.
Background
At present, copper is used as an important material metal in modern human society, and the application of the copper is very important for industrial development. As the most developing country, China is the first world in copper consumption. In 2015, 167 million tons of copper is produced in China, which accounts for 8.7 percent of the global yield and only accounts for 29.5 percent of the total domestic demand, and has high external dependence. Most of the copper metal is extracted from the copper sulphide, with copper and sulphur usually accompanying to form copper sulphide ore, which is an important source for the extraction of copper sulphide minerals. China is a big copper ore resource country, the resource storage amount is in the front of the world, but the resource amount per person is seriously insufficient, meanwhile, the copper ore resource in China has the problems of more lean ores, less rich ores, dispersed copper resource distribution, complex ore property and the like, and the recovery rate of copper and associated resources in China is low due to lagging mining and selecting technology and process, so that the high-efficiency intensive development and utilization of the copper ore resource in China is seriously influenced.
The copper-sulfur sulfide ore recovery is generally separated by adopting a flotation mode, and the flotation process comprises the combination of preferential flotation, mixed flotation, dressing and metallurgy and the like. The core problem of these processes is the separation of copper sulphide minerals and pyrite. In the current stage of copper-sulfur separation, a large amount of lime is generally added to inhibit pyrite from floating copper sulfide minerals.
The problems existing in the prior art are as follows: (1) the recovery rate of associated noble metals is low when a large amount of lime is added into the ore pulp;
(2) the pyrite is difficult to recover and the pipeline is scaled and blocked.
(3) The beneficiation wastewater is difficult to treat, and the environment is influenced.
The method disclosed by the invention is used for treating the complex copper-sulfur sulfide ores which are difficult to treat, a large amount of lime is not required to be added, the complex copper-sulfur sulfide ores can be separated under the condition of low alkali, and the recovery rate of associated metals is improved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a beneficiation method for complex and difficult-to-treat copper-sulfur sulfide ores.
The invention is realized in such a way that a beneficiation method of complex and difficult-to-treat copper-sulfur sulfide ore comprises the following steps:
(1) grinding: grinding the complex copper-sulfur ore to-0.074 mm, and preparing slurry to obtain ore pulp with the content of 65-75%;
(2) roughing copper sulfide ore: adding an organic regulator, a collecting agent and a foaming agent into the ore pulp obtained in the step (1), mixing the pulp, and then carrying out copper sulfide ore roughing to obtain copper sulfide rough concentrate and copper sulfide rough tailings;
(3) copper sulfide roughing concentrate concentration: adding an inorganic inhibitor into the rough concentration concentrate of the copper sulfide obtained in the step (2) for two times of concentration to obtain copper concentrate, wherein the middlings in the first time of concentration are returned to the rough concentration of the copper sulfide ore, and the middlings in the second time of concentration are returned to the first time of concentration;
(4) scavenging of copper sulfide roughing tailings: adding a collecting agent into the copper sulfide roughing tailings obtained in the step (2) to perform scavenging on the copper sulfide roughing tailings to obtain copper sulfide scavenging tailings, wherein scavenging times are twice, the first scavenging concentrate returns to the copper sulfide mineral roughing, and the second scavenging concentrate returns to the first scavenging;
(5) roughing pyrite minerals: adding an activating agent, a collecting agent and a foaming agent into the copper sulfide scavenging tailings obtained in the step (4), stirring and mixing the mixture, and then carrying out pyrite mineral roughing to obtain iron sulfide roughing concentrate and iron sulfide roughing tailings;
(6) and (3) scavenging of pyrite roughing tailings: adding a collecting agent into the pyrite roughing tailings obtained in the step (5) to perform scavenging on the pyrite roughing tailings to obtain final tailings, wherein the scavenging frequency is once, and the first scavenging concentrate returns to the roughing of the iron sulfide minerals;
(7) and (3) carrying out rough concentration and fine concentration on pyrite: and (5) carrying out concentration twice on the pyrite roughing concentrates obtained in the step (5) to obtain sulfur concentrates, wherein middlings in the first concentration return to pyrite mineral roughing, and middlings in the second concentration return to the first concentration.
Furthermore, the copper grade in the treated copper-sulfur sulfide ore is 0.4-1.5%, the sulfur grade is 3% -18%, the properties of copper and sulfur minerals are complex, and the embedding granularity is not uniform.
Further, the organic conditioning agent in the step (2) is a composition of tannic acid and 1, 2-benzenediol, and the mass ratio of tannic acid to 1, 2-benzenediol is as follows: 3:1-4:1, the dosage is 40-100 g/t; the collecting agent is a composition of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole, and the mass ratio of the O-isopropyl-N-ethyl thionocarbamate to the mercaptobenzothiazole is as follows: 4:1-5:1, the dosage is 30-60 g/t; the foaming agent is No. 2 oil, and the dosage is 10-30 g/t.
Further, in the step (3), the inorganic inhibitor is lime, the dosage of the first concentration inorganic inhibitor is 500g/t, and the dosage of the second concentration inorganic inhibitor is 50-200 g/t.
Further, the collecting agent in the step (4) is a combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole, and the mass ratio of the O-isopropyl-N-ethyl thionocarbamate to the mercaptobenzothiazole is as follows: 4:1-5:1. The dosage of the collecting agent for the first scavenging is 10-30g/t, and the dosage of the collecting agent for the second scavenging is 5-10 g/t.
Further, the activating agent in the step (5) is copper sulfate, and the dosage is 50-200 g/t; the collecting agent is sodium butyl xanthate, and the using amount of the collecting agent is 60-120 g/t; the foaming agent is No. 2 oil, and the dosage of the No. 2 oil is 10-30 g/t.
Further, the collecting agent in the step (6) is sodium butyl xanthate, and the using amount of the collecting agent in the first scavenging is 20-30 g/t.
Another object of the present invention is to provide a copper-sulfur sulphide ore.
In summary, the advantages and positive effects of the invention are: the method comprises the steps of grinding ore, adding an organic regulator, a collecting agent and a foaming agent, mixing the mixture, performing rough concentration to obtain copper sulfide rough concentrate, further performing fine concentration to obtain copper concentrate, performing flotation on the copper sulfide rough tailings to obtain pyrite rough concentrate, and further performing fine concentration on the pyrite rough concentrate to obtain sulfur concentrate. According to the method, the organic regulator is adsorbed on the surface of the pyrite, a hydrophilic film is formed to inhibit the pyrite, the electrochemical corrosion effect of the pyrite and the copper sulfide in flotation pulp can be reduced, the activation effect of copper ions in the copper sulfide ore on the pyrite by dissolution is reduced, the copper sulfide ore is intensively collected by the synergistic effect of flotation collectors, the separation of the copper-sulfur ore is realized under low alkalinity, and the using amount of lime is reduced. The invention solves the problems that the copper-sulfur sulfide ore flotation process needs to be carried out under high alkalinity, the separation precision is not high, and the copper and sulfur content is serious, and the used organic regulator is easy to degrade and has less environmental pollution.
Compared with the prior art, the invention has the advantages that: according to the invention, the organic regulator is adsorbed on the surface of the pyrite mineral to form a hydrophilic film which plays a role in inhibiting the pyrite, the electrochemical corrosion of the pyrite and the copper sulfide in flotation pulp can be reduced, the activation of the pyrite by the dissolution of copper ions in the copper sulfide ore is reduced, and the copper sulfide ore is intensively collected through the synergistic effect of flotation collectors, so that the separation of the copper-sulfur ore is realized under low alkalinity.
Drawings
FIG. 1 is a flow chart of a beneficiation method of complex refractory copper-sulfur sulphide ore provided by the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the current stage of copper-sulfur separation, a large amount of lime is generally added to inhibit pyrite from floating copper sulfide minerals, and the problems of low recovery rate of associated noble metals, difficult recovery of pyrite, pipeline scaling and blockage, difficult treatment of mineral processing wastewater, environmental influence and the like can be caused when a large amount of lime is added into ore pulp.
Aiming at the problems in the prior art, the invention provides a beneficiation method of complex and difficult-to-treat copper-sulfur sulfide ores, and the invention is described in detail below with reference to the accompanying drawings.
According to the beneficiation method for the complex and difficult-to-treat copper-sulfur sulfide ore provided by the embodiment of the invention, the organic regulator is adsorbed on the surface of the pyrite mineral to form a hydrophilic film which plays a role in inhibiting the pyrite, the electrochemical corrosion effect of the pyrite and the copper sulfide in flotation pulp can be reduced, the activation effect of the dissolution of copper ions in the copper sulfide ore on the pyrite is reduced, and the collection of the copper sulfide ore is enhanced through the synergistic effect of flotation collectors, so that the separation of the copper-sulfur ore is realized under low alkalinity.
The method comprises the following steps:
s101, grinding: grinding the complex copper-sulfur ore until the content of-0.074 mm accounts for 65-75% to obtain ore pulp.
S102, roughing copper sulfide ores: and (4) adding organic adjustment, a collecting agent and a foaming agent into the ore pulp obtained in the step (S101), mixing the ore pulp, and then carrying out copper sulfide ore roughing to obtain copper sulfide rough concentrate and copper sulfide rough tailings.
S103, roughing concentrate concentration of copper sulfide: and (4) adding an inorganic inhibitor into the rough concentration concentrate of the copper sulfide obtained in the step (S102) for carrying out concentration twice to obtain copper concentrate, wherein the middlings in the first concentration are returned to the rough concentration of the copper sulfide minerals, and the middlings in the second concentration are returned to the first concentration.
S104, scavenging of the copper sulfide roughing tailings: and (4) adding a collecting agent into the copper sulfide roughing tailings obtained in the step (S102) to perform scavenging on the copper sulfide roughing tailings to obtain copper sulfide scavenging tailings, wherein scavenging times are twice, the first scavenging concentrate returns to the roughing of copper sulfide minerals, and the second scavenging concentrate returns to the first scavenging.
S105, coarse separation of pyrite minerals: and adding an activating agent, a collecting agent and a foaming agent into the copper sulfide scavenging tailings obtained in the step S104, stirring and mixing the mixture, and then carrying out pyrite mineral roughing to obtain iron sulfide roughing concentrate and iron sulfide roughing tailings.
S106, scavenging of pyrite roughing tailings: and (4) adding a collecting agent into the pyrite roughing tailings obtained in the step (S105) to perform scavenging on the pyrite roughing tailings to obtain final tailings, wherein the scavenging frequency is once, and the first scavenging concentrate returns to the roughing of the iron sulfide minerals.
S107, carrying out pyrite roughing concentrate concentration: and (5) carrying out concentration twice on the pyrite roughing concentrate obtained in the step (S105) to obtain a sulfur concentrate, wherein the middlings in the first concentration are returned to the pyrite mineral roughing, and the middlings in the second concentration are returned to the first concentration.
The present invention will be further described with reference to the following specific examples.
Example 1:
the raw ore of a certain copper ore contains 0.50 percent of Cu and 3.37 percent of sulfur, the copper and the sulfur are main valuable components, the copper-containing mineral in the ore is mainly chalcopyrite, and the sulfur-containing mineral is pyrite and pyrrhotite; grinding ores until the size is minus 0.074mm and accounts for 68%, sequentially adding 60g/t of a combined organic regulator of tannic acid and 1, 2-benzenediol, 40g/t of a combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole and 28g/t of No. 2 oil into the ground ore pulp, and after size mixing, performing copper sulfide ore roughing to obtain copper sulfide roughed concentrate and roughed tailings; adding 100g/t lime into the rough concentration concentrate of copper sulfide for first concentration, returning the middlings in the first concentration to the rough concentration of the copper sulfide minerals, adding 50g/t lime into the first fine concentration for second concentration to obtain final copper concentrate, and returning the middlings in the second concentration to the first concentration; adding 15g/t of combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole into the copper sulfide roughing tailings, performing first scavenging on the copper sulfide roughing tailings, returning the first scavenged concentrate to the copper sulfide mineral roughing, adding 5g/t of combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole into the scavenged tailings, performing second scavenging to obtain copper scavenging tailings, and returning the second scavenged concentrate to the first scavenging; adding 100g/t of copper sulfate, 60g/t of sodium butyl xanthate and 28g/t of foaming agent into the copper sulfide scavenging tailings, stirring and mixing the mixture, and then carrying out pyrite mineral roughing to obtain iron sulfide roughing concentrate and iron sulfide roughing tailings; adding 20g/t of sodium butyl xanthate into the pyrite roughing tailings to carry out scavenging on the pyrite roughing tailings to obtain final tailings, and returning scavenged concentrate to the roughing of iron sulfide minerals; and performing two times of blank concentration on the pyrite roughing concentrate to obtain a sulfur concentrate, wherein the middlings in the first concentration are returned to the pyrite mineral roughing, and the middlings in the second concentration are returned to the first concentration.
TABLE 1 beneficiation indicators
Example 2:
the raw ore of a certain copper ore contains 0.47 percent of Cu and 16.78 percent of sulfur, and the metal minerals in the ore comprise chalcopyrite, pyrrhotite and colloidal pyrite; grinding ores until the size is minus 0.074mm and accounts for 75%, sequentially adding 100g/t of a combined organic regulator of tannic acid and 1, 2-benzenediol, 40g/t of a combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole and 28g/t of No. 2 oil into the ground ore pulp, and after size mixing, performing copper sulfide ore roughing to obtain copper sulfide roughed concentrate and roughed tailings; adding 200g/t lime into the rough concentration concentrate of the copper sulfide for first concentration, returning the middlings in the first concentration to the rough concentration of the copper sulfide minerals, adding 100g/t lime into the first concentration for second concentration to obtain copper concentrate, and returning the middlings in the second concentration to the first concentration; adding 15g/t of combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole into the copper sulfide roughing tailings, performing first scavenging on the copper sulfide roughing tailings, returning the first scavenged concentrate to the copper sulfide mineral roughing, adding 5g/t of combined collecting agent of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole into the scavenged tailings, performing second scavenging to obtain copper scavenging tailings, and returning the second scavenged concentrate to the first scavenging; adding 150g/t of copper sulfate, 80g/t of sodium butyl xanthate and 28g/t of foaming agent into the copper sulfide scavenging tailings, stirring and mixing the mixture, and then carrying out pyrite mineral roughing to obtain iron sulfide roughing concentrate and iron sulfide roughing tailings; adding 30g/t of sodium butyl xanthate into the pyrite roughing tailings to carry out scavenging on the pyrite roughing tailings to obtain final tailings, and returning scavenged concentrate to the roughing of iron sulfide minerals; and performing two times of blank concentration on the pyrite roughing concentrate to obtain a sulfur concentrate, wherein the middlings in the first concentration are returned to the pyrite mineral roughing, and the middlings in the second concentration are returned to the first concentration.
TABLE 2 beneficiation indicators
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The beneficiation method for the complex refractory copper-sulfur sulphide ore is characterized by comprising the following steps:
step one, grinding ore: grinding the complex copper-sulfur ore, and preparing slurry to obtain ore pulp with the content of 65-75%;
step two, roughing copper sulfide ores: adding an organic regulator, a collecting agent and a foaming agent into the ore pulp obtained in the step one, mixing the pulp, and then performing copper sulfide ore roughing to obtain copper sulfide rough concentrate and copper sulfide rough tailings;
step three, roughing concentrate concentration of copper sulfide: adding an inorganic inhibitor into the rough concentration concentrate of the copper sulfide obtained in the step two for carrying out concentration twice to obtain copper concentrate, returning the middlings of the first concentration to the rough concentration of the copper sulfide ore, and returning the middlings of the second concentration to the first concentration;
step four, scavenging the copper sulfide roughing tailings: adding a collecting agent into the copper sulfide roughing tailings obtained in the second step to perform scavenging on the copper sulfide roughing tailings to obtain copper sulfide scavenging tailings, wherein scavenging times are twice, the first scavenging concentrate returns to the copper sulfide mineral roughing, and the second scavenging concentrate returns to the first scavenging;
step five, roughing pyrite minerals: adding an activating agent, a collecting agent and a foaming agent into the copper sulfide scavenging tailings obtained in the step four, stirring and mixing the mixture, and then carrying out pyrite mineral roughing to obtain iron sulfide roughing concentrate and iron sulfide roughing tailings;
step six, scavenging the pyrite roughing tailings: adding a collecting agent into the pyrite roughing tailings obtained in the fifth step to carry out scavenging on the pyrite roughing tailings to obtain final tailings, wherein scavenging times are once, and the first scavenging concentrate returns to the roughing of the iron sulfide minerals;
seventhly, carrying out rough concentration and fine concentration on pyrite: and E, carrying out concentration twice on the pyrite roughing concentrates obtained in the step five to obtain sulfur concentrates, returning pyrite minerals to roughing in the first concentration, and returning middlings to first concentration in the second concentration.
2. The beneficiation method for complex refractory copper-sulfur sulfide ore according to claim 1, wherein in the first step, the complex copper-sulfur ore is ground to 0.074 mm;
the copper grade in the treated copper-sulfur sulfide ore is 0.4-1.5%, and the sulfur grade is 3-18%.
3. The method for beneficiation of complex refractory copper sulfur sulfide ore according to claim 1, wherein the organic conditioning agent in the second step is a combination of tannic acid and 1, 2-benzenediol, and the mass ratio of tannic acid to 1, 2-benzenediol is: 3:1-4:1, the dosage is 40-100 g/t; the collecting agent is a composition of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole, and the mass ratio of the O-isopropyl-N-ethyl thionocarbamate to the mercaptobenzothiazole is as follows: 4:1-5:1, the dosage is 30-60 g/t; the foaming agent is No. 2 oil, and the dosage is 10-30 g/t.
4. The beneficiation method for the complex refractory copper-sulfur sulfide ore according to claim 1, wherein the inorganic inhibitor in the third step is lime, the dosage of the inorganic inhibitor in the first beneficiation is 100-500g/t, and the dosage of the inorganic inhibitor in the second beneficiation is 50-200 g/t.
5. The beneficiation method for complex refractory copper sulfur sulfide ore according to claim 1, wherein the collector in the fourth step is a combined collector of O-isopropyl-N-ethyl thionocarbamate and mercaptobenzothiazole, and the mass ratio of the O-isopropyl-N-ethyl thionocarbamate to the mercaptobenzothiazole is as follows: 4:1-5:1.
6. The beneficiation method for the complex refractory copper-sulfur sulfide ore according to claim 1, wherein the dosage of the first scavenging collector in the fourth step is 10-30g/t, and the dosage of the second scavenging collector in the fourth step is 5-10 g/t.
7. The beneficiation method for complex refractory copper-sulfur sulfide ore according to claim 1, wherein the activator in the fifth step is copper sulfate, and the dosage is 50-200 g/t.
8. The beneficiation method for the complex refractory copper-sulfur sulphide ore according to claim 1, wherein in the fifth step, the collector is sodium butyl xanthate, and the using amount of the collector is 60-120 g/t; the foaming agent is No. 2 oil, and the dosage of the No. 2 oil is 10-30 g/t.
9. The beneficiation method for the complex refractory copper-sulfur sulphide ore according to claim 1, wherein the collector in the sixth step is sodium butyl xanthate, and the dosage of the first scavenging collector is 20-30 g/t.
10. The copper-sulfur sulfide ore obtained by implementing the beneficiation method for the complex refractory copper-sulfur sulfide ore according to any one of claims 1 to 9.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101352400B1 (en) * | 2013-11-20 | 2014-01-22 | 한국지질자원연구원 | Method for producing copper concentrates from complex copper ore using leaching and precipitation |
| CN103706461A (en) * | 2013-12-13 | 2014-04-09 | 北京华夏建龙矿业科技有限公司 | Unrestraint mineral processing process for arsenious copper sulphide ores |
| CN106269287A (en) * | 2016-11-03 | 2017-01-04 | 江西理工大学 | A kind of beneficiation method improving the difficult copper sulfide ore beneficiation response rate |
| CN110064520A (en) * | 2019-04-08 | 2019-07-30 | 江西理工大学 | A kind of method of FLOTATION SEPARATION copper zinc vulcanizing mine |
| CN110548592A (en) * | 2019-09-04 | 2019-12-10 | 中国地质科学院矿产综合利用研究所 | Beneficiation method for improving comprehensive recovery index of complex low-grade molybdenum multi-metal ore |
-
2021
- 2021-04-07 CN CN202110373087.7A patent/CN113070155B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101352400B1 (en) * | 2013-11-20 | 2014-01-22 | 한국지질자원연구원 | Method for producing copper concentrates from complex copper ore using leaching and precipitation |
| CN103706461A (en) * | 2013-12-13 | 2014-04-09 | 北京华夏建龙矿业科技有限公司 | Unrestraint mineral processing process for arsenious copper sulphide ores |
| CN106269287A (en) * | 2016-11-03 | 2017-01-04 | 江西理工大学 | A kind of beneficiation method improving the difficult copper sulfide ore beneficiation response rate |
| CN110064520A (en) * | 2019-04-08 | 2019-07-30 | 江西理工大学 | A kind of method of FLOTATION SEPARATION copper zinc vulcanizing mine |
| CN110548592A (en) * | 2019-09-04 | 2019-12-10 | 中国地质科学院矿产综合利用研究所 | Beneficiation method for improving comprehensive recovery index of complex low-grade molybdenum multi-metal ore |
Non-Patent Citations (2)
| Title |
|---|
| 喻连香;邱显扬;邱冠周;王海东;刘聪;钟国建;: "大宝山难选铜硫矿石选矿新工艺研究", 金属矿山, no. 12 * |
| 罗仙平;王鹏程;曹志明;王训青;青岩;陈飞;: "西藏玉龙铜矿硫化铜矿石选矿试验研究", 有色金属工程, no. 06 * |
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