CN108837949A - A method of improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate - Google Patents
A method of improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate Download PDFInfo
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- CN108837949A CN108837949A CN201810554274.3A CN201810554274A CN108837949A CN 108837949 A CN108837949 A CN 108837949A CN 201810554274 A CN201810554274 A CN 201810554274A CN 108837949 A CN108837949 A CN 108837949A
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- copper
- molybdenum
- ore
- sulfur
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- WUUZKBJEUBFVMV-UHFFFAOYSA-N copper molybdenum Chemical compound [Cu].[Mo] WUUZKBJEUBFVMV-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000005188 flotation Methods 0.000 title claims abstract description 50
- 239000012141 concentrate Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004575 stone Substances 0.000 title claims abstract description 35
- 239000011593 sulfur Substances 0.000 title claims abstract description 32
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 32
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 39
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 39
- 239000004571 lime Substances 0.000 claims abstract description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 37
- 239000011733 molybdenum Substances 0.000 claims abstract description 37
- -1 alkyl dithiocarbonate Chemical compound 0.000 claims abstract description 22
- 239000003350 kerosene Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 22
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 claims abstract description 20
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000227 grinding Methods 0.000 claims abstract description 17
- 125000006229 isopropoxyethyl group Chemical group [H]C([H])([H])C([H])(OC([H])([H])C([H])([H])*)C([H])([H])[H] 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000010408 sweeping Methods 0.000 claims description 13
- 238000003801 milling Methods 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 claims 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052961 molybdenite Inorganic materials 0.000 abstract description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 abstract description 6
- RYTYSMSQNNBZDP-UHFFFAOYSA-N cobalt copper Chemical compound [Co].[Cu] RYTYSMSQNNBZDP-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 229910052569 sulfide mineral Inorganic materials 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- BGPJLYIFDLICMR-UHFFFAOYSA-N 1,4,2,3-dioxadithiolan-5-one Chemical compound O=C1OSSO1 BGPJLYIFDLICMR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
- B03B1/04—Conditioning for facilitating separation by altering physical properties of the matter to be treated by additives
-
- 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
- B03D1/012—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
- 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
- B03D2201/06—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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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of methods of copper-molybdenum grade in raising high-sulfur horn stone copper-molybdenum ore flotation concentrate, belong to mineral manufacture field copper-cobalt ore method.High-sulfur horn stone copper-molybdenum ore is placed in ore grinding in ball mill；Kerosene is put into the ball mill of ore grinding, pulp density 30% into flotation device, and is put into lime, alkyl dithiocarbonate is added in stirring, and isopropoxyethyl radicals sulphur ammonium rouge is added, stirring, starts to carry out roughing operation in flotation device, and triple cleaning is carried out after roughing operation and is scanned three times.By the present invention in that being passivated molybdenite surface with kerosene, eliminate influence of the lime to molybdenum, then addition lime inhibits troilite, improve the grade of copper in bulk concentrate, it is used cooperatively using two types collecting agent, ensure that the flotation of copper and molybdenum, while being added to lime during triple cleaning again respectively, troilite is inhibited, the grade of copper and molybdenum in bulk concentrate is further improved.
Description
Technical field
The present invention relates to mineral manufacture field copper-cobalt ore method more particularly to a kind of raising high-sulfur horn stone copper-molybdenum ore are floating
The method of copper-molybdenum grade in concentrate selection.
Background technique
Copper-molybdenum ore reserves is very big in the world, and the copper-molybdenum in China is in the high_speed development stage, at present for copper-molybdenum ore
Main sorting process be copper-molybdenum bulk flotation-copper-cobalt ore process, copper-cobalt ore is realized using floating molybdenum suppression process for copper, this
Require that copper grade is qualified in bulk flotation concentrate.For high-sulfur horn stone copper-molybdenum ore, using conventional bulk flotation process
It is lower to will lead to bulk concentrate copper, molybdenum grade with medicament, can not normal sale, this is because troilite is difficult in floatation process
Inhibit, if thinking, bulk flotation concentrate copper grade qualification just must add large quantities of lime in flotation and prevent troilite from floating, however
Lime-crushed stone pile is excessive and understands the flotation of serious molybdenite, and the grade of molybdenum is extremely low in bulk concentrate, leads to subsequent bulk concentrate copper
Molybdenum separation loses meaning.Developing one kind to high-sulfur horn stone copper-molybdenum ore for this prevents troilite from floating, while improving bulk concentrate
The method of copper, molybdenum grade, it will effectively to recycle copper in the type ore and molybdenum opens up a new direction.
Summary of the invention
The present invention provides a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate, and this method is floating
Strengthen during choosing and inhibit iron sulfide ore, while improving copper in bulk concentrate, molybdenum grade and the rate of recovery.
The technical solution adopted by the present invention is that：Include the following steps：
A. the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill；It is put into the ball mill of ore grinding
Kerosene, -0.074mm content is 68%~72% in obtained ore milling product, and pulp density is 28~32%；
B. the ore milling product obtained in step a enters in flotation device, and is put into lime, stirs 5~7min；
C. alkyl dithiocarbonate is added in the ore pulp formed in step b, stirs 2~4min；
D. isopropoxyethyl radicals sulphur ammonium rouge is added in ore pulp obtained in step c, stirs 2~4min；
E. the ore pulp in step d starts to carry out roughing operation in flotation device, and triple cleaning and three is carried out after roughing operation
It is secondary to scan, obtain copper-molybdenum bulk concentrate and tailing.
Kerosene additive amount described in step a of the present invention is 35g/t~45g/t.
For the lime being added in step b of the present invention as pyritic inhibitor, dosage is 1450g/t~1550g/
t。
The alkyl dithiocarbonate being added in step c of the present invention is used as copper, the first collecting agent of molybdenum flotation
Amount is 28g/t~32g/t.
The isopropoxyethyl radicals sulphur ammonium rouge being added in step d of the present invention is used as copper, second of collecting agent of molybdenum flotation
Amount is 58g/t~62g/t；
Selected preceding addition lime in step e of the present invention, single-minded operation lime consumption is 730g/t~770g/t, essence
Two operation lime consumption 350g/t~390g/t, smart three operation dosages are 170g/t~190g/t；Kerosene, alkyl are added before scanning
Dithiocarbonate and isopropoxyethyl radicals sulphur ammonium rouge, sweep an operation dosage be respectively 18g/t~22g/t, 14g/t~16g/t and
28~32g/t, sweeping two operation dosages is respectively 9g/t~11g/t, 7g/t~9g/t and 14g/t~16g/t, sweeps three operation dosages
Respectively 4g/t~6g/t, 3g/t~5g/t and 7/t~9g/t.
Methodological science of the invention is reasonable, easy to operate, it is easy to accomplish, it has the following advantages that compared with prior art：
1. the present invention effectively increases the grade of copper and molybdenum in bulk concentrate in high-sulfur horn stone copper-molybdenum ore floatation process, especially
While it is the copper grade in guaranteeing bulk concentrate, the grade of molybdenum in bulk concentrate is further taken into account, to mix in next step
Concentrate carries out copper-cobalt ore and creates condition.There are a large amount of iron sulfide mineral, iron sulfide minerals in high-sulfur horn stone copper-molybdenum ore
The more difficult inhibition in floatation process need to add a large amount of lime adjusting pH values of pulp and inhibit to 13-14 to it, but work as pH>
When 12, the flotation of molybdenite also will receive serious inhibition.The objective that this method improves the grade of copper, molybdenum in bulk concentrate is first to make
It is passivated molybdenite surface with kerosene, eliminates influence of the lime to molybdenum, lime is then added and inhibits troilite, it is mixed to realize raising
Close the grade of copper in concentrate.Kerosene is added in this method in grinding process, kerosene can be adsorbed on brightness molybdenum in grinding process
Mine surface generates passivation to molybdenite, will not have an impact to molybdenum grade in bulk concentrate after subsequent addition lime, simultaneously
Lime inhibits troilite to further improve the percentage composition of copper in mixing gold mine, realizes the mesh for improving copper grade in bulk concentrate
's.
2. present invention employs two types collecting agents to be used cooperatively, alkyl dithiocarbonate is in collecting ore
Gold, silver and a small amount of copper-molybdenum, but main purpose is to prevent the loss of Jin Heyin.Another middle collecting agent is isopropoxyethyl radicals sulphur ammonium
Rouge, such collecting agent are stronger to the collecting effect of chalcopyrite and vitreous copper, but it does not float iron sulfide mineral, the dosage of 60g/t
The flotation of copper and molybdenum has been fully ensured that while cannot not ensure that floatingly troilite.
3. causing to bring into rougher concentration few due to being added to a small amount of alkyl dithiocarbonate in roughing operation
The troilite of amount, rougher concentration is added to lime during triple cleaning again respectively thus, inhibits to troilite, into
One step improves the grade of copper and molybdenum in bulk concentrate.Operation is scanned three times adds kerosene, alkyl dithiocarbonic acids again respectively
Salt and isopropoxyethyl radicals sulphur ammonium rouge effectively raise the rate of recovery of copper and molybdenum in floatation process.
Specific embodiment
Embodiment 1
Include the following steps：
A. the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill；It is put into the ball mill of ore grinding
Kerosene, -0.074mm content is 68% in obtained ore milling product, pulp density 28%；
B. the ore milling product obtained in step a enters in flotation device, and is put into lime, stirs 5min；
C. alkyl dithiocarbonate is added in the ore pulp formed in step b, stirs 2min；
D. isopropoxyethyl radicals sulphur ammonium rouge is added in ore pulp obtained in step c, stirs 2min；
E. the ore pulp in step d starts to carry out roughing operation in flotation device, and triple cleaning and three is carried out after roughing operation
It is secondary to scan, obtain copper-molybdenum bulk concentrate and tailing；
Kerosene additive amount described in step a of the present invention is 35g/t；
The lime being added in step b of the present invention is as pyritic inhibitor, dosage 1450g/t；
The alkyl dithiocarbonate being added in step c of the present invention is used as copper, the first collecting agent of molybdenum flotation
Amount is 28g/t；
The isopropoxyethyl radicals sulphur ammonium rouge being added in step d of the present invention is used as copper, second of collecting agent of molybdenum flotation
Amount is 58g/t；
Selected preceding addition lime in step e of the present invention, single-minded operation lime consumption is 730g/t, smart two operation stones
Grey dosage 350g/t, smart three operation dosages are 170g/t；Kerosene, alkyl dithiocarbonate and isopropoxyethyl radicals are added before scanning
Sulphur ammonium rouge, sweeping an operation dosage is respectively 18g/t, 14g/t and 28g/t, and sweeping two operation dosages is respectively 9g/t, 7g/t and 14g/
T, sweeping three operation dosages is respectively 4g/t, 3g/t and 7/t.
Embodiment 2
Include the following steps：
A. the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill；It is put into the ball mill of ore grinding
Kerosene, -0.074mm content is 70% in obtained ore milling product, pulp density 30%；
B. the ore milling product obtained in step a enters in flotation device, and is put into lime, stirs 6min；
C. alkyl dithiocarbonate is added in the ore pulp formed in step b, stirs 3min；
D. isopropoxyethyl radicals sulphur ammonium rouge is added in ore pulp obtained in step c, stirs 3min；
E. the ore pulp in step d starts to carry out roughing operation in flotation device, and triple cleaning and three is carried out after roughing operation
It is secondary to scan, obtain copper-molybdenum bulk concentrate and tailing；
Kerosene additive amount described in step a of the present invention is 40g/t；
The lime being added in step b of the present invention is as pyritic inhibitor, dosage 1500g/t；
The alkyl dithiocarbonate being added in step c of the present invention is used as copper, the first collecting agent of molybdenum flotation
Amount is 30g/t；
The isopropoxyethyl radicals sulphur ammonium rouge being added in step d of the present invention is used as copper, second of collecting agent of molybdenum flotation
Amount is 60g/t；
Selected preceding addition lime in step e of the present invention, single-minded operation lime consumption is 750g/t, smart two operation stones
Grey dosage 370g/t, smart three operation dosages are 180g/t；Kerosene, alkyl dithiocarbonate and isopropoxyethyl radicals are added before scanning
Sulphur ammonium rouge, sweeping an operation dosage is respectively 20g/t, 15g/t and 30g/t, sweep two operation dosages be respectively 10g/t, 8g/t and
15g/t, sweeping three operation dosages is respectively 5g/t, 4g/t and 8g/t.
Embodiment 3
Include the following steps：
A. the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill；It is put into the ball mill of ore grinding
Kerosene, -0.074mm content is 72% in obtained ore milling product, pulp density 32%；
B. the ore milling product obtained in step a enters in flotation device, and is put into lime, stirs 7min；
C. alkyl dithiocarbonate is added in the ore pulp formed in step b, stirs 4min；
D. isopropoxyethyl radicals sulphur ammonium rouge is added in ore pulp obtained in step c, stirs 4min；
E. the ore pulp in step d starts to carry out roughing operation in flotation device, and triple cleaning and three is carried out after roughing operation
It is secondary to scan, obtain copper-molybdenum bulk concentrate and tailing；
Kerosene additive amount described in step a of the present invention is 45g/t；
The lime being added in step b of the present invention is as pyritic inhibitor, dosage 1550g/t；
The alkyl dithiocarbonate being added in step c of the present invention is used as copper, the first collecting agent of molybdenum flotation
Amount is 32g/t；
The isopropoxyethyl radicals sulphur ammonium rouge being added in step d of the present invention is used as copper, second of collecting agent of molybdenum flotation
Amount is 62g/t；
Selected preceding addition lime in step e of the present invention, single-minded operation lime consumption is 770g/t, smart two operation stones
Grey dosage 390g/t, smart three operation dosages are 190g/t；Kerosene, alkyl dithiocarbonate and isopropoxyethyl radicals are added before scanning
Sulphur ammonium rouge, sweeping an operation dosage is respectively 22g/t, 16g/t and 32g/t, sweep two operation dosages be respectively 11g/t, 9g/t and
16g/t, sweeping three operation dosages is respectively 6g/t, 5g/t and 9g/t.
Following connected applications example and comparison example further illustrate effect of the invention.
Certain high-sulfur horn stone copper-molybdenum ore raw ore multielement analysis the results are shown in Table 1.
1 mixed ore multielement analysis result of table
Application example：
Include the following steps：
(1), the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill；It is put in the ball mill of ore grinding
Enter kerosene, dosage 40g/t, it is 70% that ore, which is milled to -0.074mm content, pulp density 30%；
(2), the ore milling product obtained in step (1) enters in flotation device, and is put into lime, and dosage 1500g/t is stirred
Mix 6min；
(3), alkyl dithiocarbonate is added in the ore pulp formed in step (2), dosage 30g/t stirs 3min；
(4), isopropoxyethyl radicals sulphur ammonium rouge is added in the ore pulp obtained in step (3), dosage 60g/t stirs 3min；
(5), the ore pulp in step (4) starts to carry out roughing operation in flotation device, carries out triple cleaning after roughing operation
It scans three times, lime is added before selected, single-minded operation lime consumption is 750g/t, two operation lime consumption 370g/t of essence, essence
Three operation dosages are 180g/t；Kerosene, alkyl dithiocarbonate and isopropoxyethyl radicals sulphur ammonium rouge are added before scanning, sweeps an operation
Dosage is respectively 20g/t, 15g/t and 30g/t, and sweeping two operation dosages is respectively 10g/t, 8g/t and 15g/t, sweeps three operation dosages
Respectively 5g/t, 4g/t and 8g/t obtain copper-molybdenum bulk concentrate and tailing.
Table 2 is using present invention processing high-sulfur horn stone copper-molybdenum ore closed-circuit test as a result, test result shows to high-sulfur angle
Rock copper-molybdenum ore use the method for the present invention can get copper grade be 22.91%, molybdenum grade be 0.838% bulk concentrate, copper with
The rate of recovery of molybdenum is respectively 88.87% and 65.08%, and test result is ideal.
2 present invention processing high-sulfur horn stone copper-molybdenum ore closed-circuit test result of table
Comparison example：
Using high-sulfur horn stone copper-molybdenum ore in table 1 as object, using the conventional flotation method flotation copper-molybdenum ore, specifically include
Following steps：
(1) the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill, ore is milled to -0.074mm
Content is 70%, pulp density 30%；
(2) ore milling product obtained in step (1) enters in flotation device, and is put into lime, and dosage 1500g/t is stirred
Mix 6min；
(3) alkyl dithiocarbonate is added in the ore pulp formed in step (2), dosage 60g/t stirs 3min；
(4) dibutyl dithio ammonium sulfate is added in ore pulp obtained in step (3), dosage 30g/t stirs 3min；
(5) terpenic oil is added in ore pulp obtained in step (4), dosage 40g/t stirs 3min；
(6) ore pulp in step (5) start in flotation device carry out roughing operation, after roughing operation carry out triple cleaning and
It scans three times, medicament is not added in selected operation；Scan operation be added alkyl dithiocarbonate, dibutyl dithio ammonium sulfate and
Terpenic oil, sweeping an operation dosage is respectively 30g/t, 15g/t and 20g/t, sweep two operation dosages be respectively 15g/t, 8g/t and
10g/t, sweeping three operation dosages is respectively that 8g/t, 4g/t and 5g/t obtain copper-molybdenum bulk concentrate and tailing.
Table 3 is to handle high-sulfur horn stone copper-molybdenum ore closed-circuit test result using conventional flotation method.Test result shows pair
High-sulfur horn stone copper-molybdenum ore use conventional flotation method obtain copper grade be 5.15%, molybdenum grade for 0.12% mixing
The rate of recovery of concentrate, copper and molybdenum is respectively 95.33% and 79.20%, although the rate of recovery of copper and molybdenum is higher, the product of copper and molybdenum
Position is serious unqualified, and copper grade distance sale grade 18% differs greatly, and sale is much not achieved and requires, shows in floatation process
Troilite is not restrained, and troilite enters in concentrate product.Simultaneously because joined large quantities of lime in rougher process, in flotation
Preceding molybdenite is suppressed, and leads in bulk concentrate that molybdenum grade is extremely low, is lost bulk concentrate and is carried out next step copper-cobalt ore
Meaning causes the metal loss of molybdenum.
Table 3 handles high-sulfur horn stone copper-molybdenum ore closed-circuit test result using conventional flotation method
Two examples are compared as it can be seen that can obviously improve bulk concentrate matter using the present invention for high-sulfur horn stone copper-molybdenum ore
Amount improves the grade of copper and molybdenum in bulk concentrate.
Claims (6)
1. a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate, which is characterized in that including following step
Suddenly：
A, the high-sulfur horn stone copper-molybdenum ore that granularity is -2mm is placed in ore grinding in ball mill；Coal is put into the ball mill of ore grinding
Oil, -0.074mm content is 68%~72% in obtained ore milling product, and pulp density is 28%~32%；
B, the ore milling product obtained in step a enters in flotation device, and is put into lime, stirs 5~7min；
C, alkyl dithiocarbonate is added in the ore pulp formed in step b, stirs 2~4min；
D, isopropoxyethyl radicals sulphur ammonium rouge is added in ore pulp obtained in step c, stirs 2~4min；
E, the ore pulp in step d starts to carry out roughing operation in flotation device, and triple cleaning is carried out after roughing operation and is swept three times
Choosing, obtains copper-molybdenum bulk concentrate and tailing.
2. a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate according to claim 1,
It is characterized in that：Kerosene additive amount described in step a is 35g/t~45g/t.
3. a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate according to claim 1,
It is characterized in that：For the lime being added in the step b as pyritic inhibitor, dosage is 1450g/t~1550g/t.
4. a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate according to claim 1,
It is characterized in that：The alkyl dithiocarbonate being added in the step c is as copper, the first collecting agent of molybdenum flotation, dosage
28g/t~32g/t.
5. a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate according to claim 1,
It is characterized in that：The isopropoxyethyl radicals sulphur ammonium rouge being added in the step d is as copper, second of collecting agent of molybdenum flotation, dosage
58g/t~62g/t.
6. a kind of method for improving copper-molybdenum grade in high-sulfur horn stone copper-molybdenum ore flotation concentrate according to claim 1,
It is characterized in that：Selected preceding addition lime in the step e, single-minded operation lime consumption is 730g/t~770g/t, and essence two is made
Industry lime consumption 350g/t~390g/t, smart three operation dosages are 170g/t~190g/t；Kerosene, two sulphur of alkyl are added before scanning
For carbonate and isopropoxyethyl radicals sulphur ammonium rouge, sweeping an operation dosage is respectively 18g/t~22g/t, 14g/t~16g/t and 28g/t
~32g/t, sweeping two operation dosages is respectively 9g/t~11g/t, 7g/t~9g/t and 14g/t~16g/t, sweeps three operation dosages point
It Wei not 4g/t~6g/t, 3g/t~5g/t and 7/t~9g/t.
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