CN115193587A - Beneficiation separation method for carbonate rock type high-sulfur copper lead zinc ore - Google Patents
Beneficiation separation method for carbonate rock type high-sulfur copper lead zinc ore Download PDFInfo
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- CN115193587A CN115193587A CN202210733916.2A CN202210733916A CN115193587A CN 115193587 A CN115193587 A CN 115193587A CN 202210733916 A CN202210733916 A CN 202210733916A CN 115193587 A CN115193587 A CN 115193587A
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- lead
- zinc
- copper
- sulfur
- roughing
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- 239000010949 copper Substances 0.000 title claims abstract description 143
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 131
- 239000011593 sulfur Substances 0.000 title claims abstract description 94
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 94
- 238000000926 separation method Methods 0.000 title claims abstract description 67
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 66
- 239000011435 rock Substances 0.000 title claims abstract description 59
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 109
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 88
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000005188 flotation Methods 0.000 claims abstract description 69
- UXNBTDLSBQFMEH-UHFFFAOYSA-N [Cu].[Zn].[Pb] Chemical compound [Cu].[Zn].[Pb] UXNBTDLSBQFMEH-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 33
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 239000003814 drug Substances 0.000 claims abstract description 8
- 239000006260 foam Substances 0.000 claims description 154
- 239000012141 concentrate Substances 0.000 claims description 117
- 230000002000 scavenging effect Effects 0.000 claims description 111
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 claims description 81
- 239000003112 inhibitor Substances 0.000 claims description 59
- 239000003795 chemical substances by application Substances 0.000 claims description 57
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 28
- 239000010665 pine oil Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 20
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 20
- 239000004571 lime Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 20
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 17
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 14
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 14
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 14
- 230000003213 activating effect Effects 0.000 claims description 12
- 235000003642 hunger Nutrition 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 230000037351 starvation Effects 0.000 claims description 10
- 239000004088 foaming agent Substances 0.000 claims description 8
- 229910052683 pyrite Inorganic materials 0.000 claims description 7
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 7
- 239000011028 pyrite Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 235000010265 sodium sulphite Nutrition 0.000 claims description 7
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 7
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 7
- 229960001763 zinc sulfate Drugs 0.000 claims description 7
- 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 6
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 4
- 239000002994 raw material Substances 0.000 claims 3
- 239000011133 lead Substances 0.000 abstract description 236
- 238000011084 recovery Methods 0.000 abstract description 34
- 230000008569 process Effects 0.000 abstract description 13
- JYHDSMQHVSBVFT-UHFFFAOYSA-N copper sulfanylidenelead zinc Chemical compound [Pb]=S.[Cu].[Zn] JYHDSMQHVSBVFT-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007667 floating Methods 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 15
- 238000007599 discharging Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WIKSRXFQIZQFEH-UHFFFAOYSA-N [Cu].[Pb] Chemical compound [Cu].[Pb] WIKSRXFQIZQFEH-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910001748 carbonate mineral Inorganic materials 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 229910001779 copper mineral Inorganic materials 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005456 ore beneficiation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 229910001656 zinc mineral Inorganic materials 0.000 description 1
Images
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
- B03D1/02—Froth-flotation processes
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- 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
- B03D1/002—Inorganic 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
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
-
- 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
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- 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
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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
- 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
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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
- 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
Abstract
The invention belongs to the technical field of mineral processing, and particularly discloses a beneficiation and separation method of carbonate rock type high-sulfur copper lead zinc ore. The invention aims at the problems of fine mineral-embedding granularity, uneven coarse and fine embedding, complex symbiotic relationship, easy argillization and floating of gangue and the like of the carbonate rock type high-sulfur copper-lead-zinc ore, adopts a copper-lead-zinc-sulfur sequential sorting and stage grinding flotation process, and realizes effective separation and recovery of copper, lead, zinc and sulfur in the carbonate rock type high-sulfur copper-lead-zinc ore through perfect matching of a medicament system and the ore dressing process.
Description
Technical Field
The invention relates to the technical field of mineral processing, in particular to a mineral separation method for carbonate rock type high-sulfur copper-lead-zinc ore.
Background
Most of domestic copper-lead-zinc polymetallic sulphide ores have the problems of complex occurrence relation, uneven disseminated granularity and the like, and the utilization efficiency of resources is severely restricted. The beneficiation method of the copper-lead-zinc ore mainly comprises a copper-lead-zinc partial mixed flotation process, a preferential flotation process and a mixed flotation process. The most widely used copper-lead-zinc partial mixed flotation process, namely copper-lead mixed flotation-copper-lead separation-zinc flotation, is good in adaptability, but the difficulty in copper-lead separation is high, and the most effective copper-lead separation method is to inhibit lead and copper by using cyanide or potassium dichromate. However, cyanide and potassium dichromate are hazardous toxic reagents, which are easy to cause great harm to the environment, and have been gradually eliminated in recent years.
In particular, the ore dressing of high-sulfur copper-lead-zinc ore containing carbonate has more difficult problems. Carbonate minerals mainly comprise calcite, dolomite, iron dolomite and the like, the minerals are easy to argillization in the ore grinding process, and are easy to float upwards in the flotation process, and particularly, the phenomenon of slime covering is easy to generate after lime is added. In the flotation of high-sulfur copper-lead-zinc ores, lime is the most widely applied, most economical and most effective pyrite inhibitor, so that reasonable addition of lime has an important influence on copper-lead-zinc separation.
Therefore, the invention provides a beneficiation separation method of carbonate-containing high-sulfur copper-lead-zinc ore, aiming at the beneficiation difficulty.
Disclosure of Invention
The invention mainly solves the technical problem of providing a mineral separation method for carbonate rock type high-sulfur copper-lead-zinc ore, which adopts a separation method of sequentially sorting copper, lead, zinc and sulfur and stage grinding flotation, realizes effective separation and comprehensive recovery of copper, lead, zinc and sulfur, and improves the resource utilization value.
In order to solve the technical problems, the invention adopts the technical scheme that: a mineral separation method for carbonate rock type high-sulfur copper-lead-zinc ore comprises the following steps:
s1: crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-12 to-15 mm, adding water to adjust the ore grinding concentration to 60-65%, and then grinding until the granularity is-0.075 mm accounting for 70-80% to obtain raw ore grinding ore pulp;
s2: adding water to adjust the mass percentage concentration of the raw ore grinding ore pulp to be 30-35%, then adding an inhibitor A and sulfurous acid, and then adding a copper collector, namely a butylammonium black reagent and a foaming agent, namely pine oil by a starvation type administration method to perform sectional type copper roughing to obtain copper roughing foam and copper roughing underflow;
carrying out blank concentration on the copper roughing foam to obtain copper concentration foam, wherein the copper concentrate foam is a copper concentrate product; carrying out flotation scavenging on the copper roughing underflow to obtain copper scavenging foam and copper scavenging underflow, and returning the copper scavenging foam to the copper roughing operation in sequence;
s3: adding an inhibitor B and a collecting agent 25 into the copper scavenging underflow obtained in the step S2 # Carrying out first lead roughing on the black liquor to obtain lead roughing foam 1 and lead roughing underflow 1;
carrying out blank concentration on the lead roughing foam 1 to obtain lead concentrating foam 1 and lead concentrating underflow 1, wherein the lead concentrating foam 1 is lead concentrate 1;
performing secondary lead roughing on the lead roughing underflow 1 to obtain lead roughing foam 2 and lead roughing underflow 2, then performing scavenging on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and returning the lead scavenging foam to the secondary lead roughing operation in sequence;
s4: combining the lead concentration underflow 1 and the lead roughing foam 2 obtained in the step S3, grinding after concentration until the granularity is-0.038 mm and accounts for 70-80%, adding water to adjust the concentration of ore grinding pulp to 25-30%, and then adding an inhibitor B and a collector 25 # Black liquor, carrying out secondary lead concentration to obtain lead concentration foam 2, wherein the lead concentration foam 2 is lead concentrate 2, and lead concentration underflow 2 obtained by the secondary lead concentration is returned to the primary lead roughing operation in sequence;
combining the lead concentrate 1 and the lead concentrate 2 to obtain a lead concentrate product;
s5: adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step S3, performing zinc-sulfur bulk flotation roughing and at least one scavenging to obtain zinc-sulfur bulk flotation roughing foam and flotation tailings, and performing blank concentration on the zinc-sulfur bulk flotation roughing foam to obtain zinc-sulfur bulk concentrate;
s6: adding inhibitor lime and collecting agent butyl xanthate into the zinc-sulfur bulk concentrate to perform zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
the zinc-sulfur separation roughing foam is subjected to zinc concentration to obtain zinc concentration foam and zinc concentration bottom flow, and the zinc concentration foam is a zinc concentrate product;
concentrating the zinc-sulfur separation roughing underflow, grinding the concentrated zinc-sulfur separation roughing underflow until the granularity is-0.038 mm and accounts for 80-90%, and then performing zinc scavenging to obtain zinc scavenging foam and zinc scavenging underflow, wherein the zinc scavenging underflow is a sulfur concentrate product;
and the zinc scavenging foam and the zinc concentration underflow are sequentially returned to the zinc-sulfur separation roughing operation.
In some embodiments, the pyrite content in the carbonate rock type high-sulfur cuprum-plumbum-zincite raw ore is > 25% by mass.
In some embodiments, in step S2, the inhibitor a is a combined inhibitor of carbonate gangue, and is preferably prepared from aluminum sulfate, water glass, and sodium hexametaphosphate in a mass ratio of (1-3): (3-5): (1-2), and further preferably aluminum sulfate, water glass and sodium hexametaphosphate in a mass ratio of 2:4:1 by mixing. The dosage is 1000-2000 g added in each ton of carbonate rock type high-sulfur copper lead zinc ore raw ore.
In some embodiments, in step S2, the sulfurous acid is a lead-zinc-sulfur mineral inhibitor, and the amount of the sulfurous acid is 1000 to 3000g per ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore.
In some embodiments, in step S2, the amount of the ammonium nitrate black drug is 25 to 50g per ton of the carbonate rock type high-sulfur cuprammonium raw ore, and/or the amount of the pine alcohol oil is 10 to 20g per ton of the carbonate rock type high-sulfur cuprammonium raw ore.
In some embodiments, in step S2, the starvation dosing method comprises: adding the ammonium nitrate black powder and the pine oil in batches, and performing flotation and foam scraping after adding; preferably, the addition is carried out in three batches, wherein the addition mass ratio of the three batches is 4. Namely, the ammonium nitrate black powder and the pine oil are respectively added to the copper roughing operation for three times according to the proportion of the total dosage of 4.
In some embodiments, in step S3, the inhibitor B has an effect of selectively inhibiting zinc-sulfur minerals, and the inhibitor B is prepared from sodium sulfite, zinc sulfate and sodium humate in a mass ratio of (4-5): (4-6): (0.1-1), preferably sodium sulfite, zinc sulfate and sodium humate according to the mass ratio of 4.5. The dosage of the inhibitor B is 1000-2500 g added in each ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore.
In some embodiments, in step S3, the collector 25 # The dosage of the black powder is 80-150 g added to each ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore.
In some embodiments, in step S4, the inhibitor B is prepared from sodium sulfite, zinc sulfate, sodium humate in a mass ratio of (4 to 5): (4-6): (0.1-1), preferably sodium sulfite, zinc sulfate and sodium humate according to the mass ratio of 4.5. The dosage of the raw ore is 100-500 g per ton of carbonate rock type high-sulfur copper-lead-zinc ore.
In some embodiments, in step S4, the collector 25 # The dosage of the black powder is 5-15 g of the black powder added to each ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore.
In some embodiments, in step S5, the amount of the activator copper sulfate is 100 to 500g per ton of carbonate rock type high-sulfur copper lead zinc ore raw ore, and/or the amount of the collector butyl xanthate is 100 to 400g per ton of carbonate rock type high-sulfur copper lead zinc ore raw ore.
In some embodiments, in step S6, lime is a pyrite inhibitor, the amount of lime is 1000 to 2500g per ton of carbonate rock type high-sulfur cuprum lead zinc ore raw ore, and/or the amount of the collector butyl xanthate is 5 to 20g per ton of carbonate rock type high-sulfur cuprum lead zinc ore raw ore.
The invention provides a mineral separation method of carbonate rock type high-sulfur copper-lead-zinc ore, which aims at the difficulties of fine copper-lead-zinc-sulfur embedding granularity, uneven thickness embedding, complex symbiotic relation, easy argillization and floating of gangue minerals and the like in the carbonate rock type high-sulfur copper-lead-zinc ore, adopts the processes of copper-lead-zinc-sulfur sequential flotation, stage grinding and stage flotation, realizes effective inhibition on carbonate type gangue by adding a combined inhibitor A in the copper flotation process, takes sulfurous acid as a lead-zinc-sulfur inhibitor, utilizes a starvation administration method to add a copper collector, namely a butyl ammonium black medicine and foaming agent, namely terpineol oil, and realizes effective separation of copper minerals based on the characteristics of good floatability and strong competitive adsorption capacity of copper. Lime is the most commonly used pyrite inhibitor in high-sulfur lead-zinc ore flotation, but stone is added in a carbonate gangue flotation systemThe ash is easy to float upwards to form a slime cover cap, so that the recovery of zinc is influenced, and the zinc-sulfur combined inhibitor B is adopted in the invention, and is assisted with 25 which has weaker pyrite collecting capability # The black powder is a medicament system of the lead collecting agent, so that the adverse effect caused by gangue minerals and zinc-sulfur minerals is greatly reduced; by adopting the two-step lead flotation method, the coarse-grained lead mineral is recycled in an early stage, high-quality lead concentrate 1 is obtained preferentially, and lead intergrowth is reground and recleaning to obtain lead concentrate 2, so that the over-grinding of fine ground lead caused by uneven distribution of granularity of the lead mineral is avoided, the stepwise recycling of the lead mineral is realized, and the lead recovery rate is improved. The zinc flotation adopts a zinc-sulfur mixed flotation process, so that zinc-sulfur minerals and nonmetal minerals are separated, lime is prevented from being added in the main flow, middlings in the zinc-sulfur separation are reground, and the zinc-sulfur intergrowth is reground, so that the monomer dissociation degree of the zinc minerals is improved, and the recovery rate of zinc is further improved. The invention realizes the comprehensive recovery of copper, lead, zinc and sulfur in the carbonate rock type high-sulfur copper-lead-zinc ore by perfect matching of a medicament system and an ore dressing process.
The invention is designed according to the problems of toxic reagents used in the existing carbonate rock type high-sulfur copper-lead-zinc ore beneficiation process and low utilization rate of copper-lead-zinc resources, realizes the high-efficiency recovery of copper-lead-zinc-sulfur, has the advantages of economy, environmental protection, stable flow, high product grade and recovery rate and the like, and obtains good beneficiation indexes. The indexes of the copper concentrate, lead concentrate, zinc concentrate and sulfur concentrate products obtained by the invention are as follows:
the Cu grade of the copper concentrate is 16-22%, the Pb grade is 5-8%, and the Zn grade is 2.0-5.0%; the Pb grade of the lead concentrate 1 is more than 50 percent, and the Zn grade is 3.5 to 5.0 percent; the Pb grade of the lead concentrate 2 is more than 38 percent, and the Zn grade is 3.5 to 7.0 percent; the Pb grade of the combined lead concentrate (lead concentrate 1+ 2) is 48-55%, and the Zn grade is 3.5-5.5%; the Zn grade of the zinc concentrate is 46 to 53 percent, and the Pb grade is 0.5 to 2.5 percent; the S grade of the sulfur concentrate is more than 45 percent.
By adopting the separation method, the recovery rate of Cu in the copper concentrate is more than 55 percent, the recovery rate of Pb in the lead concentrate is more than 80 percent, the recovery rate of Zn in the zinc concentrate is more than 75 percent, and the recovery rate of S in the sulfur concentrate is more than 35 percent.
Drawings
FIG. 1 is a flow chart of a beneficiation and separation process of carbonate rock type high-sulfur copper lead zinc ore provided by the invention.
Detailed Description
The technical solution of the present invention will be described in detail by specific examples.
In the following examples, the drugs used are all commercially available products unless otherwise specified. When preparing the dressing agent, the dressing agent can remove sulfurous acid, pine oil and 25 percent # And diluting the rest of the black medicine stock solution with clear water and adding.
The percentages in this application are by weight, unless otherwise specified.
The mass percentage of the pyrite in the carbonate rock type high-sulfur copper lead zinc ore raw ore processed in the following examples is more than 25 percent and is between 25 and 35 percent.
The inhibitor A adopted in the following examples is the same and is a combined inhibitor of carbonate gangue, and the combined inhibitor is prepared from aluminum sulfate, water glass and sodium hexametaphosphate in a mass ratio of 2:4:1 are mixed.
The adopted inhibitors B are the same, have the function of selectively inhibiting zinc-sulfur minerals and are formed by combining sodium sulfite, zinc sulfate and sodium humate according to the mass ratio of 4.5.
Example 1
The embodiment provides a beneficiation separation method for carbonate rock type high-sulfur copper-lead-zinc ore, which adopts the beneficiation separation process flow shown in fig. 1 to separate and recover copper, lead, zinc and sulfur from certain carbonate rock type high-sulfur copper-lead-zinc ore in the state of guangdong, and specifically comprises the following steps:
(1) Crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-12 mm, then adding water to adjust the grinding concentration to 60%, grinding the raw ore to 75% with the granularity of-0.075 mm to obtain raw ore grinding ore pulp;
(2) Adding water to adjust the concentration of the raw ore grinding ore pulp to be 30%, then sequentially adding an inhibitor A and sulfurous acid, wherein the dosage of the inhibitor A and the sulfurous acid is respectively 1500g and 2000g added to each ton of raw ore, then adding a copper collector ammonium black agent and a foaming agent pine oil by a starvation type administration method, adding the ammonium black agent and the pine oil in three batches, wherein the dosage of the ammonium black agent and the pine oil added in three batches is respectively calculated according to each ton of raw ore: (20 + 8) g, (15 + 6) g and (15 + 6) g, copper roughing is carried out after each batch is added, and sectional type flotation is carried out to obtain copper roughing foam and copper roughing underflow;
carrying out 1-time blank concentration on the copper roughing foam to obtain copper concentrating foam, namely copper concentrate; carrying out flotation scavenging on the copper roughing underflow to obtain copper scavenging foam and copper scavenging underflow, and sequentially returning the copper refining underflow and the copper scavenging foam to the previous stage;
(3) Adding an inhibitor B and a collecting agent 25 into the copper scavenging underflow obtained in the step (2) in sequence # Adding 2500g and 100g of black powder into each ton of raw ore respectively to perform lead roughing for the 1 st time to obtain lead roughing foam 1 and lead roughing underflow 1;
carrying out 1-time blank concentration on the lead roughing foam 1 to obtain lead concentration foam 1 and lead concentration underflow 1, wherein the lead concentration foam 1 is lead concentrate 1;
lead roughing is carried out for the 2 nd time on the lead roughing underflow 1 to obtain lead roughing foam 2 and lead roughing underflow 2, then lead scavenging is carried out on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and the lead scavenging foam is returned to the previous stage operation in sequence;
(4) Combining the lead concentration underflow 1 and the lead roughing foam 2 obtained in the step (3), placing the mixture into a ball mill after concentration and dehydration to be ground until the granularity is-0.038 mm and accounts for 80%, and adding water to adjust the concentration of ore grinding pulp to be 25%; then adding the inhibitor B and the collector 25 in turn # Black chemicals are added in an amount of 200g and 10g respectively per ton of raw ore, secondary lead concentration is carried out to obtain lead concentration foam 2, namely lead concentrate 2, and the lead concentrate 1 and the lead concentrate 2 are combined to obtain lead concentrate; lead concentration underflow 2 obtained by the second lead concentration returns to the 1 st lead roughing operation;
(5) Sequentially adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step (3), wherein the using amounts of the activating agent copper sulfate and the collecting agent butyl xanthate are respectively 400g and 300g per ton of raw ore, performing zinc-sulfur mixed flotation roughing and 2 times of scavenging to obtain zinc-sulfur mixed flotation roughing foam and flotation tailings, and discharging the flotation tailings to a tailing pond; performing blank concentration on the zinc-sulfur mixed flotation roughing foam for 1 time to obtain zinc-sulfur mixed concentrate;
(6) Adding inhibitor lime and collecting agent butyl xanthate into the zinc-sulfur bulk concentrate in sequence, wherein the dosage of the inhibitor lime and the collecting agent butyl xanthate is 2000g and 20g respectively added to each ton of raw ore, and performing zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
zinc concentration is carried out on the zinc-sulfur separation roughing foam for 3 times to obtain zinc concentration foam, namely zinc concentrate;
concentrating and dehydrating the zinc-sulfur separation roughing underflow, placing the concentrate and the dehydrated underflow in a ball mill, grinding the concentrate and the dehydrated underflow until the granularity is-0.038 mm and accounts for 85%, then performing zinc scavenging for 2 times to obtain zinc scavenging foams and zinc scavenging underflow, wherein the zinc scavenging foams return to the previous operation in sequence, and the zinc scavenging underflow is sulfur concentrate.
The flotation indexes obtained in this example are shown in table 1 below.
TABLE 1
Wherein, the yield of the copper concentrate relative to the raw ore dry sample is 5.77 percent, the Cu content is 20.45 percent, the Pb content is 6.45 percent, the Zn content is 4.87 percent, and the Cu recovery rate is 62.16 percent; the yield of the combined lead concentrate relative to a raw ore dry sample is 19.38 percent, the Pb content is 50.41 percent, the Zn content is 5.41 percent, and the lead recovery rate is 82.65 percent; the yield of the zinc concentrate relative to the raw ore dry sample is 18.01 percent, the Zn content is 52.21 percent, the Pb content is 2.02 percent, and the zinc recovery rate is 80.62 percent; the yield of sulfur concentrate relative to the raw dry sample was 12.55%, the S content was 46.23%, and the sulfur recovery was 37.16%.
Example 2
The embodiment provides a beneficiation separation method for carbonate rock type high-sulfur copper-lead-zinc ore, which adopts the beneficiation separation process flow shown in fig. 1 to separate and recover copper, lead, zinc and sulfur from certain carbonate rock type high-sulfur copper-lead-zinc ore in north Hebei, and specifically comprises the following steps:
(1) Crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-15 mm, then adding water to adjust the ore grinding concentration to 62%, and grinding the raw ore to 75% of the particle size of-0.075 mm to obtain raw ore grinding ore pulp;
(2) Adding water to adjust the concentration of the raw ore grinding ore pulp to be 35%, then sequentially adding an inhibitor A and sulfurous acid, wherein the dosage of the inhibitor A and the sulfurous acid is respectively 1000g and 2000g added to each ton of raw ore, then adding a copper collector ammonium black and a foaming agent pine oil by a starvation type administration method, adding the ammonium black and the pine oil in three batches, wherein the dosage of the ammonium black and the pine oil added in three batches is respectively calculated according to each ton of raw ore: (16 + 6) g, (12 + 4.5) g and (12 + 4.5) g, copper roughing is carried out after each batch of addition, and copper roughing foam and copper roughing underflow are obtained through sectional type flotation;
carrying out 2 times of blank concentration on the copper roughing foam to obtain copper concentration foam, namely copper concentrate; carrying out flotation scavenging on the copper roughing underflow to obtain copper scavenging foam and copper scavenging underflow, and sequentially returning the copper refining underflow and the copper scavenging foam to the previous stage;
(3) Adding an inhibitor B and a collecting agent 25 into the copper scavenging underflow obtained in the step (2) in sequence # Adding 2000g of black powder and 150g of black powder into each ton of raw ore respectively, and performing lead roughing for the 1 st time to obtain lead roughing foam 1 and lead roughing underflow 1;
carrying out blank concentration on the lead roughing foam 1 to obtain lead concentration foam 1 and lead concentration underflow 1, wherein the lead concentration foam 1 is lead concentrate 1;
performing lead roughing on the lead roughing underflow 1 for the 2 nd time to obtain lead roughing foam 2 and lead roughing underflow 2, performing lead scavenging on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and returning the lead scavenging foam to the previous operation in sequence;
(4) Combining the lead concentration underflow 1 and the lead roughing foam 2 obtained in the step (3), placing the mixture into a ball mill after concentration and dehydration, grinding the mixture until the granularity is-0.038 mm and accounts for 70%, and adding water to adjust the concentration of ore grinding pulp to 30%; then adding the inhibitor B and the collecting agent 25 in sequence # Black chemicals are added in an amount of 200g and 10g respectively per ton of raw ore, secondary lead concentration is carried out to obtain lead concentration foam 2, namely lead concentrate 2, and lead concentrate 1 and lead concentrate 2 are combined to obtain lead concentrate; lead concentration underflow 2 obtained by second lead concentration is returned to1, lead roughing operation;
(5) Sequentially adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step (3), wherein the using amounts of the activating agent copper sulfate and the collecting agent butyl xanthate are respectively 300g and 200g per ton of raw ore, performing zinc-sulfur mixed flotation roughing and 3 times of scavenging to obtain zinc-sulfur mixed flotation roughing foam and flotation tailings, and discharging the flotation tailings to a tailing pond; performing blank concentration on the zinc-sulfur mixed flotation roughing foam for 1 time to obtain zinc-sulfur mixed concentrate;
(6) Adding inhibitor lime and collecting agent butyl xanthate into the zinc-sulfur bulk concentrate in sequence, wherein the dosage of the inhibitor lime and the collecting agent butyl xanthate is 1000g and 10g respectively added to each ton of raw ore, and performing zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
zinc concentration is carried out on the zinc-sulfur separation roughing foam for 2 times to obtain zinc concentration foam, namely zinc concentrate;
concentrating and dehydrating the zinc-sulfur separation roughing underflow, placing the concentrate and the dehydrated underflow in a ball mill, grinding the concentrate and the dehydrated underflow until the granularity is-0.038 mm and accounts for 90%, then performing zinc scavenging for 1 time to obtain zinc scavenging foams and zinc scavenging underflow, wherein the zinc scavenging foams return to the previous operation in sequence, and the zinc scavenging underflow is sulfur concentrate.
The flotation indexes obtained in this example are shown in table 2 below.
TABLE 2
Wherein, the yield of the copper concentrate relative to the raw ore dry sample is 3.93 percent, the Cu content is 16.21 percent, the Pb content is 7.86 percent, the Zn content is 3.64 percent, and the Cu recovery rate is 57.93 percent; the yield of the combined lead concentrate relative to a raw ore dry sample is 16.72 percent, the Pb content is 50.85 percent, the Zn content is 3.51 percent, and the lead recovery rate is 86.77 percent; the yield of the zinc concentrate relative to the raw ore dried sample is 12.85 percent, the Zn content is 51.87 percent, the Pb content is 2.45 percent, and the zinc recovery rate is 80.64 percent; the yield of the sulfur concentrate relative to the raw ore dried sample was 16.63%, the S content thereof was 45.21%, and the sulfur recovery rate was 47.38%.
Example 3
The embodiment provides a beneficiation separation method for carbonate rock type high-sulfur copper-lead-zinc ore, which adopts the beneficiation separation process flow shown in fig. 1 to separate and recover copper, lead, zinc and sulfur from a certain carbonate rock type high-sulfur copper-lead-zinc ore in qing guangdong, and specifically comprises the following steps:
(1) Crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-14 mm, then adding water to adjust the ore grinding concentration to 62%, and grinding the raw ore to 75% of the particle size of-0.075 mm to obtain raw ore grinding ore pulp;
(2) Adding water to adjust the concentration of the raw ore grinding ore pulp to be 32%, then sequentially adding an inhibitor A and sulfurous acid, wherein the dosage of the inhibitor A and the sulfurous acid is respectively 1500g and 1500g added to each ton of raw ore, then adding a copper collector ammonium black agent and a foaming agent pine oil by a starvation type administration method, adding the ammonium black agent and the pine oil in three batches, wherein the dosage of the ammonium black agent and the pine oil added in three batches is respectively calculated according to each ton of raw ore: (12 + 4.8) g, (9 + 3.6) g and (9 + 3.6) g, copper roughing is carried out after each batch of copper is added, and copper roughing foam and copper roughing underflow are obtained through sectional type flotation;
carrying out 1-time blank concentration on the copper roughing foam to obtain copper concentrating foam, namely copper concentrate; carrying out flotation scavenging on the copper roughing underflow to obtain copper scavenging foam and copper scavenging underflow, and sequentially returning the copper refining underflow and the copper scavenging foam to the previous stage;
(3) Adding an inhibitor B and a collecting agent 25 into the copper scavenging underflow obtained in the step (2) in sequence # Adding 2000g of black powder and 100g of black powder into each ton of raw ore respectively, and performing lead roughing for the 1 st time to obtain lead roughing foam 1 and lead roughing underflow 1;
carrying out blank concentration on the lead roughing foam 1 to obtain lead concentration foam 1 and lead concentration underflow 1, wherein the lead concentration foam 1 is lead concentrate 1;
lead roughing is carried out for the 2 nd time on the lead roughing underflow 1 to obtain lead roughing foam 2 and lead roughing underflow 2, then lead scavenging is carried out on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and the lead scavenging foam is returned to the previous stage operation in sequence;
(4) Combining the lead concentration underflow 1 and lead roughing foam 2 obtained in the step (3), concentrating and dehydrating the mixture, and placing the mixture into a ballGrinding in a mill until the granularity is-0.038 mm and accounts for 78%, and adding water to adjust the concentration of ore grinding pulp to 28%; then adding the inhibitor B and the collector 25 in turn # The black powder is added in an amount of 150g and 8g respectively per ton of raw ore, secondary lead concentration is carried out to obtain lead concentration foam 2, namely lead concentrate 2, and lead concentrate 1 and lead concentrate 2 are combined to obtain lead concentrate; lead concentration underflow 2 obtained by the second lead concentration returns to the 1 st lead roughing operation;
(5) Sequentially adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step (3), wherein the using amounts of the activating agent copper sulfate and the collecting agent butyl xanthate are respectively 200g and 250g per ton of raw ore, performing zinc-sulfur mixed flotation roughing and 3 times of scavenging to obtain zinc-sulfur mixed flotation roughing foam and flotation tailings, and discharging the flotation tailings to a tailing pond; performing blank concentration on the zinc-sulfur mixed flotation roughing foam for 1 time to obtain zinc-sulfur mixed concentrate;
(6) Adding inhibitor lime and collecting agent butyl xanthate into the zinc-sulfur bulk concentrate in sequence, wherein the using amounts of the inhibitor lime and the collecting agent butyl xanthate are respectively 2000g and 10g added to each ton of raw ore, and performing zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
performing zinc concentration on the zinc-sulfur separation roughing foam for 2 times to obtain zinc concentration foam, namely zinc concentrate;
concentrating and dewatering the zinc-sulfur separation roughing underflow, placing the underflow in a ball mill, grinding the underflow until the granularity is 85% of minus 0.038mm, and then performing zinc scavenging for 2 times to obtain zinc scavenging foams and zinc scavenging underflow, wherein the zinc scavenging foams return to the previous stage of operation in sequence, and the zinc scavenging underflow is sulfur concentrate.
The flotation indexes obtained in this example are shown in table 3 below.
TABLE 3
Wherein, the yield of the copper concentrate relative to the raw ore dry sample is 3.66 percent, the Cu content is 21.68 percent, the Pb content is 4.12 percent, the Zn content is 2.15 percent, and the Cu recovery rate is 63.64 percent; the yield of the combined lead concentrate relative to a raw ore dried sample is 12.29 percent, the Pb content is 48.06 percent, the Zn content is 3.61 percent, and the lead recovery rate is 81.59 percent; the yield of the zinc concentrate relative to the raw ore dried sample is 10.77 percent, the Zn content is 52.00 percent, the Pb content is 2.02 percent, and the zinc recovery rate is 81.17 percent; the yield of sulfur concentrate relative to the dried sample of raw ore was 19.79%, its S content was 47.64%, and the sulfur recovery was 57.82%.
Example 4
The embodiment provides a beneficiation separation method for carbonate rock type high-sulfur copper-lead-zinc ore, which adopts the beneficiation separation process flow shown in fig. 1 to separate and recover copper, lead, zinc and sulfur from certain carbonate rock type high-sulfur copper-lead-zinc ore in the state of yongzhou in the south of the lake, and specifically comprises the following steps:
(1) Crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-15 mm, then adding water to adjust the ore grinding concentration to 65%, grinding the raw ore to 80% with the particle size of-0.075 mm to obtain raw ore grinding ore pulp;
(2) Adding water to adjust the concentration of the raw ore grinding ore pulp to be 30%, then sequentially adding an inhibitor A and sulfurous acid, wherein the dosage of the inhibitor A and the sulfurous acid is respectively 2000g and 1000g added to each ton of raw ore, then adding a copper collector ammonium black and a foaming agent pine oil by a starvation type administration method, adding the ammonium black and the pine oil in three batches, wherein the dosage of the ammonium black and the pine oil added in three batches is respectively calculated according to each ton of raw ore: (10 + 4) g, (7.5 + 3) g and (7.5 + 3) g, copper roughing is carried out after each batch of copper is added, and copper roughing foam and copper roughing underflow are obtained through sectional type flotation;
carrying out blank concentration for 2 times on the copper roughing foam to obtain copper concentration foam, namely copper concentrate; carrying out flotation scavenging on the copper roughing underflow to obtain copper scavenging foam and copper scavenging underflow, and sequentially returning the copper refining underflow and the copper scavenging foam to the previous stage;
(3) Adding an inhibitor B and a collecting agent 25 into the copper scavenging underflow obtained in the step (2) in sequence # The using amount of the black powder is respectively 1000g and 80g added to each ton of raw ore, and lead roughing is carried out for the 1 st time to obtain lead roughing foam 1 and lead roughing underflow 1;
carrying out blank concentration on the lead roughing foam 1 to obtain lead concentration foam 1 and lead concentration bottom flow 1, wherein the lead concentration foam 1 is lead concentrate 1;
lead roughing is carried out for the 2 nd time on the lead roughing underflow 1 to obtain lead roughing foam 2 and lead roughing underflow 2, then lead scavenging is carried out on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and the lead scavenging foam is returned to the previous stage operation in sequence;
(4) Combining the lead concentration underflow 1 and the lead roughing foam 2 obtained in the step (3), placing the mixture into a ball mill after concentration and dehydration, grinding the mixture until the granularity is-0.038 mm and accounts for 75%, and adding water to adjust the concentration of ore grinding pulp to 30%; then adding the inhibitor B and the collecting agent 25 in sequence # Black chemicals are added in an amount of 100g and 5g respectively per ton of raw ore, secondary lead concentration is carried out to obtain lead concentration foam 2, namely lead concentrate 2, and lead concentrate 1 and lead concentrate 2 are combined to obtain lead concentrate; lead concentration underflow 2 obtained by the second lead concentration returns to the 1 st lead roughing operation;
(5) Sequentially adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step (3), wherein the using amounts of the activating agent copper sulfate and the collecting agent butyl xanthate are respectively 100g and 100g for each ton of raw ore, performing zinc-sulfur mixed flotation roughing and 3 times of scavenging to obtain zinc-sulfur mixed flotation roughing foam and flotation tailings, and discharging the flotation tailings to a tailing pond; performing blank concentration on the zinc-sulfur mixed flotation roughing foam for 2 times to obtain zinc-sulfur mixed concentrate;
(6) Adding inhibitor lime and collecting agent butyl xanthate into the zinc-sulfur bulk concentrate in sequence, wherein the dosage of the inhibitor lime and the collecting agent butyl xanthate is respectively 2500g and 5g for each ton of raw ore, and performing zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
performing zinc concentration on the zinc-sulfur separation roughing foam for 2 times to obtain zinc concentration foam, namely zinc concentrate;
concentrating and dewatering the zinc-sulfur separation roughing underflow, placing the underflow in a ball mill, grinding the underflow until the granularity is-0.038 mm and accounts for 80%, then performing zinc scavenging for 1 time to obtain zinc scavenging foam and zinc scavenging underflow, returning the zinc scavenging foam to the previous stage of operation in sequence, and obtaining the zinc scavenging underflow which is sulfur concentrate.
The flotation indexes obtained in this example are shown in table 4 below.
TABLE 4
Wherein, the yield of the copper concentrate relative to the raw ore dry sample is 3.74 percent, the Cu content is 18.45 percent, the Pb content is 6.40 percent, the Zn content is 4.61 percent, and the Cu recovery rate is 62.22 percent; the yield of the combined lead concentrate relative to a raw ore dried sample is 11.19 percent, the Pb content is 54.19 percent, the Zn content is 3.55 percent, and the lead recovery rate is 84.04 percent; the yield of the zinc concentrate relative to the raw ore dry sample is 7.26 percent, the Zn content is 46.13 percent, the Pb content is 2.43 percent, and the zinc recovery rate is 75.43 percent; the yield of the sulfur concentrate relative to the raw ore dried sample was 28.82%, the S content thereof was 50.21%, and the sulfur recovery rate was 65.16%.
Example 5
The embodiment provides a beneficiation separation method for carbonate rock type high-sulfur copper-lead-zinc ore, which adopts the beneficiation separation process flow shown in fig. 1 to separate and recover copper, lead, zinc and sulfur from a certain carbonate rock type high-sulfur copper-lead-zinc ore in the family of northern Yangtze river, and specifically comprises the following steps:
(1) Crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-12 mm, then adding water to adjust the ore grinding concentration to 65%, grinding the raw ore to 78% with the granularity of-0.075 mm, and obtaining raw ore grinding ore pulp;
(2) Adding water to adjust the concentration of the raw ore grinding ore pulp to be 35%, then sequentially adding an inhibitor A and sulfurous acid, wherein the dosage of the inhibitor A and the sulfurous acid is 1800g and 2500g respectively added to each ton of raw ore, then adding a copper collector ammonium black agent and a foaming agent pine oil by a starvation type administration method, adding the ammonium black agent and the pine oil in three batches, wherein the dosage of the ammonium black agent and the pine oil added in three batches is respectively calculated according to each ton of raw ore: (16 + 6) g, (12 + 4.5) g and (12 + 4.5) g, copper roughing is carried out after each batch of addition, and copper roughing foam and copper roughing underflow are obtained through sectional type flotation;
carrying out blank concentration for 2 times on the copper roughing foam to obtain copper concentration foam, namely copper concentrate; carrying out flotation scavenging on the copper roughing bottom flow to obtain copper scavenging foam and copper scavenging bottom flow, and returning the copper concentration bottom flow and the copper scavenging foam to the previous stage operation in sequence;
(3) To step (2) to obtainAdding inhibitor B and collector 25 into the copper scavenging underflow in sequence # 2200g and 120g of black powder are respectively added into each ton of raw ore to carry out lead roughing for the 1 st time to obtain lead roughing foam 1 and lead roughing underflow 1;
carrying out blank concentration on the lead roughing foam 1 to obtain lead concentration foam 1 and lead concentration underflow 1, wherein the lead concentration foam 1 is lead concentrate 1;
performing lead roughing on the lead roughing underflow 1 for the 2 nd time to obtain lead roughing foam 2 and lead roughing underflow 2, performing lead scavenging on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and returning the lead scavenging foam to the previous operation in sequence;
(4) Combining the lead concentration underflow 1 and the lead roughing foam 2 obtained in the step (3), placing the mixture into a ball mill after concentration and dehydration, grinding the mixture until the granularity is-0.038 mm and accounts for 75%, and adding water to adjust the concentration of ore grinding pulp to 28%; then adding the inhibitor B and the collector 25 in turn # Black chemicals are added in an amount of 300g and 12g respectively per ton of raw ore, secondary lead concentration is carried out to obtain lead concentration foam 2, namely lead concentrate 2, and lead concentrate 1 and lead concentrate 2 are combined to obtain lead concentrate; lead concentration underflow 2 obtained by the second lead concentration returns to the 1 st lead roughing operation;
(5) Sequentially adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step (3), wherein the using amounts of the activating agent copper sulfate and the collecting agent butyl xanthate are respectively 320g and 260g of raw ore per ton, performing zinc-sulfur mixed flotation roughing and 2 times of scavenging to obtain zinc-sulfur mixed flotation roughing foam and flotation tailings, and discharging the flotation tailings to a tailing pond; performing blank concentration on the zinc-sulfur bulk flotation roughing foam for 2 times to obtain zinc-sulfur bulk concentrate;
(6) Adding inhibitor lime and collecting agent butyl xanthate into the zinc-sulfur bulk concentrate in sequence, wherein the dosage of the inhibitor lime and the collecting agent butyl xanthate is 2000g and 12g respectively added to each ton of raw ore, and performing zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
zinc concentration is carried out on the zinc-sulfur separation roughing foam for 2 times to obtain zinc concentration foam, namely zinc concentrate;
concentrating and dewatering the zinc-sulfur separation roughing underflow, placing the underflow in a ball mill, grinding the underflow until the granularity is 88% of minus 0.038mm, and then performing zinc scavenging for 1 time to obtain zinc scavenging foam and zinc scavenging underflow, wherein the zinc scavenging foam returns to the previous stage operation in sequence, and the zinc scavenging underflow is sulfur concentrate.
The flotation indexes obtained in this example are shown in table 5 below.
TABLE 5
Wherein, the yield of the copper concentrate relative to the raw ore dry sample is 3.93 percent, the Cu content is 16.21 percent, the Pb content is 7.86 percent, the Zn content is 3.64 percent, and the Cu recovery rate is 57.93 percent; the yield of the combined lead concentrate relative to a raw ore dried sample is 16.72 percent, the Pb content is 50.85 percent, the Zn content is 3.51 percent, and the lead recovery rate is 86.77 percent; the yield of the zinc concentrate relative to the raw ore dry sample is 12.85 percent, the Zn content is 51.87 percent, the Pb content is 2.45 percent, and the zinc recovery rate is 80.64 percent; the yield of sulfur concentrate relative to the raw dry sample was 16.06%, its S content was 48.54%, and the sulfur recovery was 53.14%.
The embodiment shows that the method can realize the high-efficiency recovery of copper, lead, zinc and sulfur for the carbonate rock type high-sulfur copper, lead and zinc ores, obtains copper concentrate, lead concentrate, zinc concentrate and sulfur concentrate products, has the advantages of economy, environmental protection, stable flow, high product grade and recovery rate and the like, and obtains good ore dressing indexes.
Although the invention has been described in detail hereinabove by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that many modifications and improvements can be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.
Claims (9)
1. The mineral separation method of the carbonate rock type high-sulfur copper-lead-zinc ore is characterized by comprising the following steps of:
s1: crushing carbonate rock type high-sulfur copper-lead-zinc ore raw ore to-12 to-15 mm, adding water to adjust the ore grinding concentration to 60 to 65 percent, and then grinding until the granularity is-0.075 mm and accounts for 70 to 80 percent to obtain raw ore grinding ore pulp;
s2: adding water to adjust the mass percentage concentration of the raw ore grinding ore pulp to be 30-35%, then adding an inhibitor A and sulfurous acid, and then adding a copper collector, namely butyl ammonium black and a foaming agent, namely pine oil by a starvation type dosing method to perform copper roughing to obtain copper roughing foam and copper roughing underflow;
carrying out blank concentration on the copper roughing foam to obtain copper concentration foam, wherein the copper concentrate foam is a copper concentrate product; carrying out flotation scavenging on the copper roughing underflow to obtain copper scavenging foam and copper scavenging underflow, and returning the copper scavenging foam to the copper roughing operation in sequence;
s3: adding an inhibitor B and a collecting agent 25 into the copper scavenging underflow obtained in the step S2 # Black powder, carrying out primary lead roughing to obtain lead roughing foam 1 and lead roughing underflow 1;
the lead roughing foam 1 is subjected to blank concentration to obtain lead concentration foam 1 and lead concentration underflow 1, and the lead concentration foam 1 is lead concentrate 1;
performing secondary lead roughing on the lead roughing underflow 1 to obtain lead roughing foam 2 and lead roughing underflow 2, then performing scavenging on the lead roughing underflow 2 to obtain lead scavenging foam and lead scavenging underflow, and returning the lead scavenging foam to the secondary lead roughing operation in sequence;
s4: the lead concentration underflow 1 and the lead roughing foam 2 obtained in the step S3 are combined, ground after concentration until the granularity is-0.038 mm and accounts for 70-80%, water is added to adjust the concentration of the ore grinding pulp to 25-30%, and then inhibitor B and collector 25 are added # Carrying out secondary lead concentration on the black powder to obtain lead concentration foam 2, wherein the lead concentration foam 2 is lead concentrate 2;
combining the lead concentrate 1 and the lead concentrate 2 to obtain a lead concentrate product;
s5: adding an activating agent copper sulfate and a collecting agent butyl xanthate into the lead scavenging underflow obtained in the step S3, performing zinc-sulfur bulk flotation roughing and at least one scavenging to obtain zinc-sulfur bulk flotation roughing foam and flotation tailings, and performing blank concentration on the zinc-sulfur bulk flotation roughing foam to obtain zinc-sulfur bulk concentrate;
s6: adding inhibitor lime and a collecting agent butyl xanthate into the zinc-sulfur bulk concentrate, and performing zinc-sulfur separation roughing to obtain zinc-sulfur separation roughing foam and zinc-sulfur separation roughing underflow;
performing zinc concentration on the zinc-sulfur separation roughing foam to obtain zinc concentration foam, wherein the zinc concentration foam is a zinc concentrate product;
and concentrating the zinc-sulfur separation roughing underflow, grinding the concentrated zinc-sulfur separation roughing underflow until the granularity is-0.038 mm and accounts for 80-90%, and then performing zinc scavenging to obtain zinc scavenging foam and zinc scavenging underflow, wherein the zinc scavenging underflow is a sulfur concentrate product.
2. The method according to claim 1, characterized in that the pyrite content in the carbonate rock type high-sulfur cuprum-plumbum-zincite raw ore is more than 25% by mass.
3. The method according to claim 1 or 2, wherein in step S2, the inhibitor a is a combined inhibitor of carbonate gangue, preferably a mixture of aluminum sulfate, water glass and sodium hexametaphosphate in a mass ratio of (1-3): (3-5): (1-2) mixing the raw materials, wherein the dosage of the raw materials is 1000-2000 g of the raw materials added in each ton of carbonate rock type high-sulfur copper-lead-zinc ore;
the dosage of the sulfurous acid is 1000-3000 g added to each ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore.
4. The method according to claim 3, wherein in step S2, the amount of the butyl ammonium black drug is 25-50 g per ton of carbonate rock type high-sulfur copper lead zinc ore raw ore, and/or the amount of the pine oil is 10-20 g per ton of carbonate rock type high-sulfur copper lead zinc ore raw ore.
5. The method of claim 1 or 4, wherein in step S2, the starvation dosing regimen comprises: adding the ammonium nitrate black powder and the pine oil in batches, and performing flotation and foam scraping after adding; preferably, the addition is carried out in three batches, wherein the addition mass ratio of the three batches is 4.
6. The method according to claim 1, characterized in that in step S3, the inhibitor B is prepared from sodium sulfite, zinc sulfate and sodium humate in a mass ratio of (4-5): (4-6): (0.1-1), and the dosage is 1000-2500 g added in each ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore;
and/or, the collector 25 # The dosage of the black powder is 80-150 g added in each ton of carbonate rock type high-sulfur copper lead zinc ore raw ore.
7. The method according to claim 1, characterized in that in step S4, the inhibitor B is prepared from sodium sulfite, zinc sulfate and sodium humate in a mass ratio of (4-5): (4-6): (0.1-1), and the dosage of the raw ore is 100-500 g per ton of carbonate rock type high-sulfur copper-lead-zinc ore;
and/or, the collector 25 # The dosage of the black powder is 5-15 g of the black powder added to each ton of carbonate rock type high-sulfur copper-lead-zinc ore raw ore.
8. The method according to claim 1, wherein in the step S5, the dosage of the activator copper sulfate is 100-500 g per ton of the carbonate rock type high-sulfur cuprum plumbum and zincite raw ore, and/or the dosage of the collector butyl xanthate is 100-400 g per ton of the carbonate rock type high-sulfur cuprum and plumbum and zincite raw ore.
9. The method according to any one of claims 1 to 8, wherein in the step S6, the lime is added in an amount of 1000 to 2500g per ton of carbonate rock type high-sulfur cuprum plumbum and zincite raw ore, and/or the butyl xanthate serving as a collecting agent is added in an amount of 5 to 20g per ton of carbonate rock type high-sulfur cuprum plumbum and zincite raw ore.
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