CN105413854B - Beneficiation method for high-oxidation-rate copper-molybdenum paragenic ore - Google Patents
Beneficiation method for high-oxidation-rate copper-molybdenum paragenic ore Download PDFInfo
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- CN105413854B CN105413854B CN201510978109.7A CN201510978109A CN105413854B CN 105413854 B CN105413854 B CN 105413854B CN 201510978109 A CN201510978109 A CN 201510978109A CN 105413854 B CN105413854 B CN 105413854B
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/014—Organic compounds containing phosphorus
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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
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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Abstract
The invention discloses a beneficiation method of high-oxidation-rate copper-molybdenum paragenic ore, which comprises the following steps: (1) crushing: crushing and screening raw ores by a crusher, and returning and crushing the raw ores with the grain size of +3mm until the grain sizes of all the raw ores reach the grade of-3 mm; (2) grinding: adding crushed-3 mm raw ore into raw ore grinding equipment to perform closed circuit grinding operation, and simultaneously adding 1000-3000 g/t of activating agent and 250-900 g/t of vulcanizing agent into a grinding machine to grind the raw ore to the content of 55-80% of-0.075 mm; (3) performing flotation roughing operation; (4) performing flotation scavenging operation; (5) flotation and fine selection operation; (6) and (5) performing strong magnetic separation. By adopting the method, the copper oxide minerals and the molybdenum oxide minerals in the copper-molybdenum paragenic ore with high oxidation rate can be subjected to beneficiation, enrichment and recovery to obtain high-quality qualified copper concentrate and a relatively enriched molybdenum middling, and the molybdenum middling can be used as a raw material for producing ammonium molybdate products by chemical wet leaching, so that molybdenum oxide resources in the ore can be recycled.
Description
Technical field
The present invention relates to the beneficiation enrichment technology field of cupric oxide molybdenum symbiotic ore, especially a kind of high oxidation rate copper-molybdenum
The beneficiation method of mineral intergrowth, the present invention are applied to the beneficiation enrichment of various high oxidation rate cupric oxide molybdenum symbiotic ores.
Background technology
China's copper, molybdenum ore resource very abundant, ended for the end of the year 2014, copper ore resource amount reaches 91,110,000 tons, Mo resource storage
Amount reaches 28,260,000 tons, is the Dominant Mineral Resources in China.Utilization of the China to mineral resources generally follow after getting rich first it is poor,
Easy first and difficult later principle, with the high speed development of modern industry, limited easily selects copper sulfide, molybdenum ore resource to peter out,
Remaining copper, molybdenum ore be mostly oxygenation efficiency it is higher be difficult enrichment ore resource.
The industrial more principles according to " oxygen after first sulphur " of cupric oxide ore and oxidizing molybdenum ore for partial oxidation, first ore flotation
Copper sulfide and molybdenum sulfide in stone, then the method for flotation after the oxide ore vulcanization in mine tailing is reclaimed to it.
The copper-molybdenum mineral intergrowth of high oxidation rate, the molybdenite and chalcopyrite for referring to symbiosis experienced in very long geological epoch
Erode, drench with rain, the top of Cu-Mo separation or selective oxidation after sunshine, molybdenum sulfide is partially or mostly oxidized to molybdine molybdite or molybdic acid
Salt ore, copper sulfide are partially or mostly oxidized to secondary copper sulfide or cupric oxide ore.
Handled more using floatation and chemical method for cupric oxide ore, floatation is to handle the main side of cupric oxide ore
Method, property uncomplicated cupric oxide ore simple suitable for mineral composition, its focus studied concentrate on the most efficient flotation reagents
Selection and the control of sulfidation；Floatation should not be used or using the poor cupric oxide ore of floatation process index, it is use more
Chemical Treatment, such as Publication No. 103128004A, publication date discloses one kind for the Chinese patent literature on June 5th, 2013
Vulcanize the method for copper-molybdenum bulk concentrate floatation FLOTATION SEPARATION, it is carried out according to the following steps：（1）The choosing of copper-molybdenum bulk concentrate floatation
Take, size mixing；（2）Adjustment inhibitor waterglass is sequentially added in ore pulp, the high efficiency selected inhibitor hydroxamic acid of copper forms sediment
Powder, vulcanized sodium, molybdenum sulfide mineral collector kerosene, foaming agent 2# oil（Terpenic oil）Molybdenum roughing operation is carried out, obtains molybdenum rough concentrate
With molybdenum rougher tailings, rougher tailings adds kerosene and 2# oil carries out molybdenum and scanned, and scans number as 1~3 time, obtains molybdenum flotation tailing
As copper concentrate, scavenger concentrate order are back to last flotation operation；（3）Molybdenum rough concentrate adds copper mineral inhibitor hydroxamic acid
Starch and vulcanized sodium, concentration times are 5~9 times, obtain molybdenum concntrate, and the selected chats order of molybdenum is back to last flotation operation.
This method be applied to disseminated grain size is thin, cupric is low, argillization is serious, ore structures and composition change greatly, vulcanize it is difficult the features such as oxygen
Change Copper Ores.
Handled as much using floatation and chemical method for molybdenum oxide ore, floatation is applied to mineral composition letter
Single, the uncomplicated molybdenum oxide ore based on molybdine molybdite of property, and chemical method is applied to the poor molybdine molybdite class mineral of flotation effect
With with molybdenum oxide mineral existing for the molybdic acid salt mineral forms such as molybdenum calcium ore deposit, wulfenite, molybdic acid iron ore, such ore is due to can not
It is enriched with using floatation, directly uses chemical method wet-leaching more, then output ammonium molybdate or molybdenum oxide product.Should
Technique considerably increases consumption and waste residue and the waste liquid of the raw material such as soda acid due to the direct Chemical Leaching without beneficiation enrichment
Generation, add production cost, reduce the productivity effect of enterprise, while easily bring serious pollution to environment.
The content of the invention
For the mineral composition of the type high oxidation rate copper-molybdenum mineral intergrowth is complicated, copper-molybdenum oxygenation efficiency is high and molybdenum is mainly with molybdenum calcium ore deposit
Form exists and causes to be difficult to the technical barrier being enriched with by floatation process, and the present invention proposes one kind and is directed to the type high oxidation
The beneficiation method of rate copper-molybdenum mineral intergrowth, can be to the copper oxide mineral in the type high oxidation rate copper-molybdenum mineral intergrowth using this method
Beneficiation enrichment recovery is carried out with molybdenum oxide mineral, obtains the qualified copper concentrate of high-quality and the molybdenum chats of a relative enrichment,
The molybdenum chats can leach the raw material of production ammonium molybdate product as wet chemical, the oxidation Mo resource in ore is recycled profit
With.
The present invention is realized by using following technical proposals：
A kind of beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth, it is characterised in that step is as follows：
（1）It is broken：Using disintegrating machine by crushing raw ore and screening ,+3mm grades raw ore, which returns, to be crushed, until all raw ores
Granularity reaches -3mm ranks；
（2）Ore grinding：To -3mm the raw ores crushed, add and closed circuit grinding operation is carried out in raw ore grinding attachment, while
1000 ~ 3000g/t of activator, 250 ~ 900g/t of vulcanizing agent are added in grinding machine, raw ore is milled to -0.075mm contents 55 ~ 80%；
（3）Roughing flotation operation；
（4）Operation is scanned in flotation；
（5）The selected operation of flotation；
（6）High intensity magnetic separation operation.
Described（3）Roughing flotation operation specifically refers to：To the primary sample by ore grinding, stirring first is sized mixing, and controls ore deposit
Starch concentration 25 ~ 40%, after gradually add 700 ~ 1200g/t of waterglass, 100 ~ 250g/t of collecting agent, 10 ~ 30g/t of foaming agent, floating
The operation of roughing I is carried out in optional equipment, the operation obtains the concentrate of roughing I and the mine tailing of roughing I, and the mine tailing of roughing I is added to roughing flotation
In II operation, stirring is sized mixing, same to add 50 ~ 100g/t of collecting agent, 5 ~ 15g/t of foaming agent, is carried out the operation of roughing flotation II, is obtained
To the concentrate of roughing II and the mine tailing of roughing II, the concentrate of roughing II and the concentrate of roughing I are combined into the selected operation of flotation, the mine tailing of roughing II
Operation is scanned into flotation.
Described（4）Flotation is scanned operation and specifically referred to：Working materials are scanned using the mine tailing of roughing II as molybdenum flotation, are added
Carry out scanning operation into scavenger flotation cell, stirring is sized mixing first, and adds 25 ~ 60g/t of collecting agent, 0 ~ 10g/t of foaming agent, is swept
I operation is selected, I is scanned and obtains scanning I concentrate and scan I mine tailing, scan I concentrate and return in roughing operation, scan the addition of I mine tailing
To scanning in II operation, stirring is sized mixing, same to add 10 ~ 30g/t of collecting agent, 0 ~ 10g/t of foaming agent, carries out scanning II operation,
Scan II to obtain scanning II concentrate and scan II mine tailing, scan II concentrate and return to and scan in I operation, scan II mine tailing enter it is strong
Magnetic concentration working.
Described（5）The selected operation of flotation specifically refers to：Using the concentrate of roughing I and the concentrate of roughing II as raw material, stir first
Mix and size mixing, and add 100 ~ 300g/t of waterglass, carry out selected I operation, selected I operation obtains selected I concentrate and selected I tail
Ore deposit, raw material of selected I concentrate as selected II operation, selected I mine tailing return to roughing flotation operation；Selected I concentrate enters essence
II operation is selected, stirring first is sized mixing, and being added without any medicament, to enter line blank selected, obtains selected II concentrate and selected II mine tailing,
Wherein selected II mine tailing returns to selected I operation；The selected final copper concentrate of II concentrate.
Described（6）High intensity magnetic separation operation specifically refers to：Operation mine tailing is scanned as raw material using flotation, carries out high intensity magnetic separation operation；
The condition of high intensity magnetic separation operation is：Magnetic field intensity 0.8-1.8T, ore pulp mass percentage concentration 20-35%, high intensity magnetic separation operation obtains non-magnetic
The high intensity magnetic separation concentrate of property and the high intensity magnetic separation mine tailing of weak magnetic, wherein, high intensity magnetic separation concentrate is final molybdenum chats product, high intensity magnetic separation tail
Ore deposit is true tailings.
Described high oxidation rate copper-molybdenum mineral intergrowth refers to copper, molybdenum oxygenation efficiency more than 80%, and molybdenum oxide is mainly with molybdenum calcium
Copper-molybdenum ore existing for the forms such as ore deposit, wulfenite, wulfenite.
Described disintegrating machine refer to the coarse crushings such as the various jaw crushers, double-roll crusher, high-pressure roller mill of industrial type,
In broken, fine crushing device one or more kinds of equipment therein combinations.
Described raw ore grinding attachment refers to that the various autogenous tumbling mills of industrial type, semi-autogenous mill, rod mill, ball mill etc. are set
The combination of standby one or more kinds of equipment therein.
Described floatation equipment refers to one or both of floatation equipments such as the flotation device of various industrial types, flotation column
The combination of above equipment.
The equipment of the high intensity magnetic separation operation is Wet-type strong magnetic separator.It is strong to be specifically as follows flat ring formula intensity magnetic separator, vertical ring type
The group of one or both of magnetic separator, flat ring formula High gradient high intensity magnetic separator or vertical ring type High gradient high intensity magnetic separator above equipment
Close.
Described activator refers to ammonium sulfate, ammonium chloride, ammonium hydrogen carbonate, ethylenediamine phosphate, dithiol thio biphosphole, benzo
Triazole, triethanolamine one or more kinds of medicaments combination.
Described vulcanizing agent refers to the one or more kinds of medicaments of vulcanized sodium, NaHS, calcium sulfide, sodium polysulfide
Combination.
Described collecting agent refers to oxide mineral collector with sulfide mineral collector by 1:1~2 ratio combines, oxide ore
Collecting agent is primarily referred to as five or nine hydroximic acids, benzyl hydroximic acid, Salicyl Hydroximic Acid, enuatrol, oxidized paraffin wax soap, aphthenic acids or benzene second
Alkenyl phosphoric acid；Sulfide mineral collector be primarily referred to as butyl xanthate, ethyl xanthate, isopropyl xanthate, isoamyl xanthate, butylamine black powder,
Diethyldithiocarbamate, second rosickyite urethane（Z-200）Or diethyldithiocarbamate propionitrile ester（Ester 105）.
Described foaming agent refers to 2#Oil, terpenic oil, mixed fatty alcohol, methyl isobutyl carbinol（MIBC）, ether alcohol class, phenol
The combination of the industrial foaming agent such as class one or more kinds of medicaments therein.
Compared with prior art, what the present invention was reached has the beneficial effect that：
（1）Due to the ore dressing new method of high oxidation rate copper-molybdenum mineral intergrowth proposed by the present invention, by -3mm raw ore ore grindings
During add vulcanizing agent, its mineral particle surface constantly newly dissociateed with ore grinding is contacted in time, hydrolyze to form it
HS-Or S2-Rapid absorption coats in mineral particle surface, presentation metal sulfide film, strengthens its hydrophobicity；Activator simultaneously
Addition can accelerate the speed of vulcanization reaction, promote the completeness of reaction, and improve the sulfide film of copper oxide mineral Surface Creation
Density, strengthen the stability of sulfide film.Addition of two kinds of medicaments in grinding machine can effectively reduce the oxidation of fine-grained gangue Mineral pairs
The covering of copper mineral and parcel, be advantageous to effective collecting of the collecting agent of postorder addition to copper oxide mineral, so as to obtain
The higher copper concentrate product of copper grade.
（2）Due to the ore dressing new method of high oxidation rate copper-molybdenum mineral intergrowth proposed by the present invention, strong magnetic is used to nominal group process
Select technique to reclaim molybdenum oxide mineral, can throw except a large amount of gangue minerals with weak magnetic, make mainly in the form of molybdenum calcium ore deposit etc. to exist
Molybdenum oxide mineral be enriched with non magnetic ore, the molybdenum chats product being effectively enriched with, reach effectively recovery oxidation
The purpose of molybdenum ore thing.
（3）It is straight by physical upgrading technique due to the ore dressing new method of high oxidation rate copper-molybdenum mineral intergrowth proposed by the present invention
Practice midwifery out qualified copper concentrate and the molybdenum chats of relative enrichment, the molybdenum chats can be used as wet chemical to leach and produce ammonium molybdate product
Raw material, can substantially reduce leaching operation enters leaching amount, reduces the raw materials consumptions such as soda acid, reduces production cost and metallurgical waste liquid
The generation of waste residue, there is very significant economic benefit and social benefit.
Brief description of the drawings
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein：
Fig. 1 is the process chart of the present invention.
Embodiment
Embodiment 1
Be 0.32% using Cu contents, the high oxidation rate copper-molybdenum symbiotic ore of Mo contents 0.25% as raw material, Cu oxygenation efficiency is
95.92%, Mo oxygenation efficiency are 87.50%.Using the technology of the present invention, following steps, such as Fig. 1 are carried out：
（1）It is broken：Using disintegrating machine by crushing raw ore and screening ,+3mm grades raw ore, which returns, to be crushed, until all raw ores
Granularity reaches -3mm ranks；
（2）Ore grinding：To -3mm the raw ores crushed, closed circuit grinding operation is carried out using rod mill or ball mill.Exist simultaneously
Ammonium sulfate 2000g/t, vulcanized sodium 500g/t are added in grinding machine, raw ore is milled to -0.075mm contents 65.0%；
（3）Roughing flotation operation；To by ore grinding primary sample, first stirring size mixing, control pulp density 35%, after by
Secondary addition waterglass 900g/t, five or nine hydroximic acid 75g/t, butyl xanthate 75g/t, 2#Oily 15g/t, carried out in floatation equipment thick
I operation is selected, the operation obtains the concentrate of roughing I and the mine tailing of roughing I, and the mine tailing of roughing I is added in the operation of roughing flotation II, and stirring is adjusted
Slurry, it is same to add five or nine hydroximic acid 40g/t, butyl xanthate 40g/t, 2#Oily 10g/t, the operation of roughing flotation II is carried out, obtained thick
II concentrate and the mine tailing of roughing II are selected, the concentrate of roughing II and the concentrate of roughing I are combined into the selected operation of flotation, and the mine tailing of roughing II enters
Operation is scanned in flotation；
（4）Operation is scanned in flotation；Working materials are scanned using the mine tailing of roughing II as molybdenum flotation, is added in scavenger flotation cell and carries out
Operation is scanned, stirring first is sized mixing, and adds five or nine hydroximic acid 20g/t, butyl xanthate 20g/t, 2#Oily 5g/t, carry out scanning I
Operation, scan I and obtain scanning I concentrate and scan I mine tailing, scan I concentrate and return in roughing operation, scan I mine tailing and be added to
Scan in II operation, stirring is sized mixing, same to add five or nine hydroximic acid 10g/t, butyl xanthate 10g/t, 2#Oily 3g/t, is scanned
II operation, scan II and obtain scanning II concentrate and scan II mine tailing, scan II concentrate and return to and scan in I operation, scan II tail
Ore deposit enters high intensity magnetic separation operation.
（5）The selected operation of flotation；Using the concentrate of roughing I and the concentrate of roughing II as raw material, stirring is sized mixing first, and adds water
Glass 150g/t, selected I operation is carried out, selected I operation obtains selected I concentrate and selected I mine tailing, and selected I concentrate is as selected
The raw material of II operation, selected I mine tailing return to roughing flotation operation.Selected I concentrate enters selected II operation, and stirring first is adjusted
Slurry, being added without any medicament, to enter line blank selected, selected II concentrate and selected II mine tailing is obtained, wherein selected II mine tailing returns to essence
Select I operation；The selected final copper concentrate of II concentrate.
（6）High intensity magnetic separation operation：Operation mine tailing is scanned as raw material using flotation, carries out high intensity magnetic separation operation.Control magnetic field intensity
1.5T, ore pulp mass percentage concentration 30%.High intensity magnetic separation operation obtains nonmagnetic high intensity magnetic separation concentrate and the high intensity magnetic separation tail of weak magnetic
Ore deposit, wherein, high intensity magnetic separation concentrate is final molybdenum chats, and high intensity magnetic separation mine tailing is true tailings.
Final copper concentrate Cu grades 21.37%, the Cu rate of recovery 74.81%；Molybdenum chats yield 21.83%, Mo grades 0.90%, Mo
The rate of recovery 78.59%.
Embodiment 2
Be 0.35% using Cu contents, the high oxidation rate copper-molybdenum symbiotic ore of Mo contents 0.22% as raw material, Cu oxygenation efficiency is
90.45%, Mo oxygenation efficiency are 85.37%.Using the technology of the present invention, following steps, such as Fig. 1 are carried out：
（1）It is broken：Using disintegrating machine by crushing raw ore and screening ,+3mm grades raw ore, which returns, to be crushed, until all raw ores
Granularity reaches -3mm ranks；
（2）Ore grinding：To -3mm the raw ores crushed, closed circuit grinding operation is carried out using rod mill or ball mill.Exist simultaneously
Ethylenediamine phosphate 2300g/t, sodium polysulfide 720g/t are added in grinding machine, raw ore is milled to -0.075mm contents 75.0%；
（3）Roughing flotation operation；To by ore grinding primary sample, first stirring size mixing, control pulp density 32%, after by
Secondary addition waterglass 1100g/t, benzyl hydroximic acid 90g/t, butylamine black powder 90g/t, 2#Oily 25g/t, carried out in floatation equipment
The operation of roughing I, the operation obtain the concentrate of roughing I and the mine tailing of roughing I, and the mine tailing of roughing I is added in the operation of roughing flotation II, stirring
Size mixing, it is same to add benzyl hydroximic acid 50g/t, butylamine black powder 50g/t, 2#Oily 15g/t, the operation of roughing flotation II is carried out, is obtained
The concentrate of roughing II and the mine tailing of roughing II, the concentrate of roughing II and the concentrate of roughing I are combined into the selected operation of flotation, and the mine tailing of roughing II enters
Enter flotation and scan operation；
（4）Operation is scanned in flotation；Working materials are scanned using the mine tailing of roughing II as molybdenum flotation, is added in scavenger flotation cell and carries out
Operation is scanned, stirring is sized mixing first, and adds benzyl hydroximic acid 30g/t, butylamine black powder 30g/t, 2#Oily 8g/t, carry out scanning I
Operation, scan I and obtain scanning I concentrate and scan I mine tailing, scan I concentrate and return in roughing operation, scan I mine tailing and be added to
Scan in II operation, stirring is sized mixing, same to add benzyl hydroximic acid 15g/t, butylamine black powder 15g/t, 2#Oily 5g/t, is scanned
II operation, scan II and obtain scanning II concentrate and scan II mine tailing, scan II concentrate and return to and scan in I operation, scan II tail
Ore deposit enters high intensity magnetic separation operation.
（5）The selected operation of flotation；Using the concentrate of roughing I and the concentrate of roughing II as raw material, stirring is sized mixing first, and adds water
Glass 200g/t, selected I operation is carried out, selected I operation obtains selected I concentrate and selected I mine tailing, and selected I concentrate is as selected
The raw material of II operation, selected I mine tailing return to roughing flotation operation.Selected I concentrate enters selected II operation, and stirring first is adjusted
Slurry, being added without any medicament, to enter line blank selected, selected II concentrate and selected II mine tailing is obtained, wherein selected II mine tailing returns to essence
Select I operation；The selected final copper concentrate of II concentrate.
（6）High intensity magnetic separation operation：Operation mine tailing is scanned as raw material using flotation, carries out high intensity magnetic separation operation.Control magnetic field intensity
1.5T, ore pulp mass percentage concentration 25%.High intensity magnetic separation operation obtains nonmagnetic high intensity magnetic separation concentrate and the high intensity magnetic separation tail of weak magnetic
Ore deposit, wherein, high intensity magnetic separation concentrate is final molybdenum chats, and high intensity magnetic separation mine tailing is true tailings.
Final copper concentrate Cu grades 22.56%, the Cu rate of recovery 75.92%；Molybdenum chats yield 20.45%, Mo grades 0.87%, Mo
The rate of recovery 80.87%.
Embodiment 3
Be 0.27% using Cu contents, the high oxidation rate copper-molybdenum symbiotic ore of Mo contents 0.21% as raw material, Cu oxygenation efficiency is
92.45%, Mo oxygenation efficiency are 89.97%.Using the technology of the present invention, following steps, such as Fig. 1 are carried out：
（1）It is broken：Using disintegrating machine by crushing raw ore and screening ,+3mm grades raw ore, which returns, to be crushed, until all raw ores
Granularity reaches -3mm ranks；
（2）Ore grinding：To -3mm the raw ores crushed, closed circuit grinding operation is carried out using rod mill or ball mill.Exist simultaneously
BTA 2000g/t, NaHS 500g/t are added in grinding machine, raw ore is milled to -0.075mm contents 70.0%；
（3）Roughing flotation operation；To by ore grinding primary sample, first stirring size mixing, control pulp density 38%, after by
Secondary addition waterglass 800g/t, Salicyl Hydroximic Acid 70g/t, diethyldithiocarbamate 70g/t, 2#Oily 25g/t, roughing is carried out in floatation equipment
I operation, the operation obtain the concentrate of roughing I and the mine tailing of roughing I, and the mine tailing of roughing I is added in the operation of roughing flotation II, and stirring is adjusted
Slurry, it is same to add Salicyl Hydroximic Acid 35g/t, diethyldithiocarbamate 35g/t, 2#Oily 15g/t, the operation of roughing flotation II is carried out, obtains roughing
II concentrate and the mine tailing of roughing II, the concentrate of roughing II and the concentrate of roughing I are combined into the selected operation of flotation, and the mine tailing of roughing II enters floating
Operation is scanned in choosing；
（4）Operation is scanned in flotation；Working materials are scanned using the mine tailing of roughing II as molybdenum flotation, is added in scavenger flotation cell and carries out
Operation is scanned, stirring is sized mixing first, and adds Salicyl Hydroximic Acid 18g/t, diethyldithiocarbamate 18g/t, 2#Oily 8g/t, carry out scanning I work
Industry, scan I and obtain scanning I concentrate and scan I mine tailing, scan I concentrate and return in roughing operation, scan I mine tailing and be added to and sweep
Select in II operation, stirring is sized mixing, same to add Salicyl Hydroximic Acid 10g/t, diethyldithiocarbamate 10g/t, 2#Oily 4g/t, carry out scanning II work
Industry, scan II and obtain scanning II concentrate and scan II mine tailing, scan II concentrate and return to and scan in I operation, scan II mine tailing and enter
Enter high intensity magnetic separation operation.
（5）The selected operation of flotation；Using the concentrate of roughing I and the concentrate of roughing II as raw material, stirring is sized mixing first, and adds water
Glass 120g/t, selected I operation is carried out, selected I operation obtains selected I concentrate and selected I mine tailing, and selected I concentrate is as selected
The raw material of II operation, selected I mine tailing return to roughing flotation operation.Selected I concentrate enters selected II operation, and stirring first is adjusted
Slurry, being added without any medicament, to enter line blank selected, selected II concentrate and selected II mine tailing is obtained, wherein selected II mine tailing returns to essence
Select I operation；The selected final copper concentrate of II concentrate.
（6）High intensity magnetic separation operation：Operation mine tailing is scanned as raw material using flotation, carries out high intensity magnetic separation operation.Control magnetic field intensity
1.3T, ore pulp mass percentage concentration 25%.High intensity magnetic separation operation obtains nonmagnetic high intensity magnetic separation concentrate and the high intensity magnetic separation tail of weak magnetic
Ore deposit, wherein, high intensity magnetic separation concentrate is final molybdenum chats, and high intensity magnetic separation mine tailing is true tailings.
Final copper concentrate Cu grades 20.97%, the Cu rate of recovery 73.64%；Molybdenum chats yield 21.52%, Mo grades 0.82%, Mo
The rate of recovery 84.03%.
Claims (9)
1. a kind of beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth, it is characterised in that step is as follows：
（1）It is broken：Using disintegrating machine by crushing raw ore and screening ,+3mm grades raw ore, which returns, to be crushed, until all original ore sizes
Reach -3mm ranks；
（2）Ore grinding：To -3mm the raw ores crushed, add and closed circuit grinding operation is carried out in raw ore grinding attachment, while in grinding machine
1000 ~ 3000g/t of middle addition activator, 250 ~ 900g/t of vulcanizing agent, -0.075mm contents 55 ~ 80% are milled to by raw ore；
（3）Roughing flotation operation；
（4）Operation is scanned in flotation；
（5）The selected operation of flotation；
（6）High intensity magnetic separation operation；
Described high oxidation rate copper-molybdenum mineral intergrowth refers to copper, molybdenum oxygenation efficiency more than 80%, and molybdenum oxide is mainly with molybdenum calcium ore deposit, molybdenum
Copper-molybdenum ore existing for the forms such as lead ore, wulfenite.
A kind of 2. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 1, it is characterised in that：Described
（3）Roughing flotation operation specifically refers to：To the primary sample by ore grinding, stirring first is sized mixing, and controls pulp density 25 ~ 40%, after
700 ~ 1200g/t of waterglass, 100 ~ 250g/t of collecting agent, 10 ~ 30g/t of foaming agent are gradually added, is carried out in floatation equipment thick
I operation is selected, the operation obtains the concentrate of roughing I and the mine tailing of roughing I, and the mine tailing of roughing I is added in the operation of roughing flotation II, and stirring is adjusted
Slurry, it is same to add 50 ~ 100g/t of collecting agent, 5 ~ 15g/t of foaming agent, carry out the operation of roughing flotation II, obtain the concentrate of roughing II and
The mine tailing of roughing II, the concentrate of roughing II and the concentrate of roughing I are combined into the selected operation of flotation, and the mine tailing of roughing II scans work into flotation
Industry.
A kind of 3. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 2, it is characterised in that：Described
（4）Flotation is scanned operation and specifically referred to：Working materials are scanned using the mine tailing of roughing II as molybdenum flotation, is added in scavenger flotation cell and carries out
Operation is scanned, stirring is sized mixing first, and adds 25 ~ 60g/t of collecting agent, 0 ~ 10g/t of foaming agent, is carried out scanning I operation, is scanned I
Obtain scanning I concentrate and scan I mine tailing, scan I concentrate and return in roughing operation, scan I mine tailing and be added to and scan II operation
In, stirring is sized mixing, same to add 10 ~ 30g/t of collecting agent, 0 ~ 10g/t of foaming agent, is carried out scanning II operation, is scanned II and swept
Select and II concentrate and scan II mine tailing, scan II concentrate and return to and scan in I operation, scan II mine tailing and enter high intensity magnetic separation operation.
A kind of 4. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 3, it is characterised in that：Described
（5）The selected operation of flotation specifically refers to：Using the concentrate of roughing I and the concentrate of roughing II as raw material, stirring is sized mixing first, and adds water
100 ~ 300g/t of glass, carries out selected I operation, and selected I operation obtains selected I concentrate and selected I mine tailing, selected I concentrate conduct
The raw material of selected II operation, selected I mine tailing return to roughing flotation operation；Selected I concentrate enters selected II operation, stirs first
Size mixing, being added without any medicament, to enter line blank selected, selected II concentrate and selected II mine tailing is obtained, wherein selected II mine tailing returns
Selected I operation；The selected final copper concentrate of II concentrate.
A kind of 5. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 4, it is characterised in that：Described
（6）High intensity magnetic separation operation specifically refers to：Operation mine tailing is scanned as raw material using flotation, carries out high intensity magnetic separation operation；The bar of high intensity magnetic separation operation
Part is：Magnetic field intensity 0.8-1.8T, ore pulp mass percentage concentration 20-35%, high intensity magnetic separation operation obtain nonmagnetic high intensity magnetic separation concentrate
With the high intensity magnetic separation mine tailing of weak magnetic, wherein, high intensity magnetic separation concentrate is final molybdenum chats product, and high intensity magnetic separation mine tailing is true tailings.
A kind of 6. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 5, it is characterised in that：Described is broken
Broken machine refers to the combination of one or both of jaw crusher, double-roll crusher, high-pressure roller mill above equipment.
A kind of 7. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 5, it is characterised in that：Described work
Agent refers to ammonium sulfate, ammonium chloride, ammonium hydrogen carbonate, ethylenediamine phosphate, dithiol thio biphosphole, BTA, triethanolamine
The combination of one or more kinds of medicaments.
A kind of 8. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 5, it is characterised in that：Described sulphur
Agent refer to vulcanized sodium, NaHS, calcium sulfide, sodium polysulfide one or more kinds of medicaments combination.
A kind of 9. beneficiation method of high oxidation rate copper-molybdenum mineral intergrowth according to claim 5, it is characterised in that：Described
Collecting agent refers to oxide mineral collector with sulfide mineral collector by 1:1~2 ratio is combined, and oxide mineral collector is primarily referred to as
Five or nine hydroximic acids, benzyl hydroximic acid, Salicyl Hydroximic Acid, enuatrol, oxidized paraffin wax soap, aphthenic acids or styrene phosphoric acid；Sulphide ore
Collecting agent is primarily referred to as butyl xanthate, ethyl xanthate, isopropyl xanthate, isoamyl xanthate, butylamine black powder, diethyldithiocarbamate, second rosickyite
Urethane or diethyldithiocarbamate propionitrile ester.
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