CN110216018A - Beneficiation method for high-mud fine-grain copper oxide ore - Google Patents

Beneficiation method for high-mud fine-grain copper oxide ore Download PDF

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Publication number
CN110216018A
CN110216018A CN201910453701.3A CN201910453701A CN110216018A CN 110216018 A CN110216018 A CN 110216018A CN 201910453701 A CN201910453701 A CN 201910453701A CN 110216018 A CN110216018 A CN 110216018A
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Prior art keywords
copper oxide
product
mud
ore
desliming
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Chinese (zh)
Inventor
陈杜娟
王婷霞
郭海宁
刘剑
苗梁
王志丰
李健民
李福兰
苗培
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Northwest Research Institute of Mining and Metallurgy
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Northwest Research Institute of Mining and Metallurgy
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Priority to CN201910453701.3A priority Critical patent/CN110216018A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/018—Mixtures of inorganic and organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/02—Collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/04—Frothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • 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 invention discloses a beneficiation method of high-mud fine-grain copper oxide ore, belonging to the technical field of mineral processing. The method comprises the steps of carrying out desliming on raw ores after grinding, then carrying out flotation operation, returning non-mud products to roughing operation after desliming of middlings in flotation, combining desliming products obtained by two desliming operations, and carrying out agitation leaching. The method effectively solves the problems of serious argillization phenomenon and large loss of fine-grained useful minerals during the flotation recovery of the high-mud fine-grained copper oxide minerals, and has the characteristics of high recovery rate, low process cost and wide application range.

Description

A kind of beneficiation method of high mud fine-grained copper oxide mine
Technical field
The present invention relates to Non-ferrous minerals processing to sort field, and it is thin to be related to a kind of recycling shale content height, disseminated grain size Copper oxide mineral method.
Background technique
Copper oxide is that had for a long time by the underground water and biology that are rich in oxygen and carbon dioxide after copper sulfide deposit exposes earth's surface It is formed after the strong effect of machine matter, mineral composition, ore structures and construction features are all complex, washability and vulcanization Ore has very big difference, it is difficult to sort.A key factor for leading to copper oxide flotation effect difference is cupric oxide ore stone structure pine Dissipate frangible, aqueous more, especially for the ore of shale gangue content, argillization phenomenon is serious when ore grinding, the sludge meeting of generation Deteriorating flotation effect if copper oxide mineral disseminated grain size is thin, and will further increase flotation for the ore of this high cement content The difficulty of recycling.
Summary of the invention
The problem for the copper oxide mineral flotation effect difference that the present invention is high for shale content, disseminated grain size is thin, proposes one Kind recycles the beneficiation method of the mineral.
Technical solution of the present invention: a kind of beneficiation method of high mud fine-grained copper oxide mine includes the following steps:
1) ore grinding: wet-milling after crushing raw ore to fineness -0.074mm is accounted for 75% ~ 85%, ore milling concentration is 50% ~ 60%；
2) ore milling product desliming: carrying out sedimentation desliming for the resulting ore milling product of step 1), remove granularity < 0.01mm sludge, Obtain slime product 1 and non-mud product 1；
3) non-1 flotation of mud product: it is 30% ~ 35% that the ore pulp of the resulting non-mud product 1 of step 2, which is adjusted concentration, and activator is added 100 ~ 300g/t(of vulcanized sodium is in terms of raw ore), collecting agent 50 ~ 150g/t of amyl group xanthate, 30 ~ 60g/t of foaming agent are aoxidized Copper mineral roughing obtains rougher concentration, rougher tailings；Rougher concentration adjusts pulp density 10% ~ 25%, and dispersing agent waterglass is added 200 ~ 300g/t progress copper oxide is selected, obtains oxidation copper concentrate and selected chats；Rougher tailings adjust to pulp density 25% ~ 33%, 20 ~ 30g/t of activator vulcanized sodium is added, collecting agent 20 ~ 30g/t of amyl group xanthate, 5 ~ 15g/t of foaming agent carry out cupric oxide ore Object is scanned, and is obtained copper oxide and is scanned chats and tailing；
4) selected chats, copper oxide obtained by step 3) are scanned after chats merges and carries out sedimentation desliming, obtain slime product 2 and non- Mud product 2；
5) roughing by the resulting non-mud product 2 of step 4) as middling recurrence flotation operation next time；
By 2) resulting slime product 1 and 4) 6) slime product leaches: resulting slime product 2 carries out copper oxide mineral leaching, Obtain cupric immersion liquid and tailings.
Further, the step 6) copper oxide mineral, which leaches, uses leaching technique, and leaching liquid-solid ratio is 3:1 ~ 5: 1, leaching agent sulfuric acid dosage is 1 ~ 2.5mol/L, 4 ~ 6h of extraction time.
Further, foaming agent used in step 3) is the combination of terpenic oil and kerosene, and mass combination ratio is 2:1, is added suitable Sequence is first to add terpenic oil, adds kerosene afterwards.
Signified high mud fine-grained copper oxide of the invention has the following properties that feature: mineral gangue type is mainly carbonate mine Object, and shale gangue content is high, copper oxide mineral disseminated grain size is thin, generally in earth rubber shape or earthy, some in penetrate into gangue or The state of country rock, it is difficult to separate and recover.
After this method is mainly raw ore ore grinding, first carry out sedimentation desliming, non-mud product carry out respectively roughing, it is selected, scan, Selected chats carries out sedimentation desliming, and non-mud product returns to roughing, and the sludge and chats sludge after ore grinding carry out sulfuric acid leaching after merging Out, compared with conventional flotation-leaching process integration, the rate of recovery of copper has raising by a relatively large margin.
Beneficial effects of the present invention: this method will first carry out desliming and carry out flotation operation again after raw ore ore grinding, be effectively reduced Adverse effect of the sludge to flotation, returns again to roughing operation after flotation chats desliming, reduces the closed circuit examination of common process flotation When testing the sludge that does not remove of part chats aggregation and deteriorate the influence of flotation effect, the resulting desliming of desliming operation twice produces Product are stirred leaching, effectively reduce the loss of fine fraction copper oxide mineral, improve copper metal overall recovery.The present invention Argillization phenomenon is serious when effective solution high mud fine-grained copper oxide mineral floating recycling, and the loss of fine fraction valuable mineral is big to ask Topic.This method has the characteristics that the rate of recovery is high, process costs are low, wide adaptation range.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Embodiment 1
Test sample ore is Xinjiang cupric oxide ore, and raw ore copper grade 1.25%, main copper mineral is chessy copper, cuprite, and there are also few Cuprite and copper sulfide are measured, gangue mineral is mainly quartz, calcite, potassium feldspar, albite, allochite etc., vulcanisation copper mine Beyond the region of objective existence, other copper-bearing mineral disseminated grain sizes are thin, penetrate into gangue mineral in disseminated, ore is after weathering and illuviation, mine Cement content is higher.
The cupric oxide ore recovery process is as follows:
1) ore grinding: wet-milling after crushing raw ore to fineness -0.074mm is accounted for 80%, ore milling concentration 50%；
2) ore milling product desliming: resulting ore milling product is subjected to sedimentation desliming, granularity < 0.01mm sludge is removed, obtains mine Mud product 1 and non-mud product 1；
3) non-1 flotation of mud product: 2) it is 35% that resulting non-mud product, which is adjusted concentration, and activator vulcanized sodium 150g/t is added, catches Agent amyl group xanthate 80g/t is received, foaming agent 40g/t carries out copper oxide mineral roughing, and dispersing agent waterglass 200g/t is added and obtains slightly Concentrate selection and rougher tailings；Rougher concentration is adjusted to 25%, 20%, 10% respectively, obtains through triple cleaning, the pulp density of triple cleaning To oxidation copper concentrate and selected chats；Rougher tailings is adjusted to pulp density 33%, and activator vulcanized sodium 20g/t, collecting agent is added Amyl group xanthate 25g/t, foaming agent 10g/t carry out copper oxide mineral and scan, and obtain copper oxide and scan chats and tailing；Selected chats Sedimentation desliming is carried out after merging, obtains slime product 2 and non-mud product 2；When closed-circuit test, non-mud product 2 is used as middling recurrence The roughing of flotation operation next time；
By 2) resulting slime product 1 and 3) 4) slime product leaches: resulting slime product 2 carries out copper oxide mineral stirring leaching Out, leaching liquid-solid ratio is 3:1, and leaching agent sulfuric acid dosage is 1.5mol/L, and extraction time 4h obtains cupric immersion liquid and tailings.
Using process above, slime product leached tailings and flotation tailing contain copper grade and are down to 0.18%, and copper overall recovery is about Up to 85%.
Embodiment 2
Test sample ore is Shanxi cupric oxide ore, and sludge content is high, copper grade 1.92%, and copper mineral is mainly peacock in ore Stone, vitreous copper, chrysocolla and chessy copper, gangue mineral have quartz, feldspar, biotite, chlorite and kaolin etc.；Malachite Based on microfine, mainly it is filled in fine pulse-like in the crack of gangue and forms filling vein structure, other copper minerals are with thickness Equal granular embedding cloth does not form impregnation structure in gangue mineral.
The copper oxide recovery process is as follows:
1) ore grinding: wet-milling after crushing raw ore to fineness -0.074mm is accounted for 75%, ore milling concentration 55%；
2) ore milling product desliming: resulting ore milling product is subjected to sedimentation desliming, granularity < 0.01mm sludge is removed, obtains mine Mud product 1 and non-mud product 1；
3) non-1 flotation of mud product: 2) it is 33% that resulting non-mud product, which is adjusted concentration, and activator vulcanized sodium 200g/t is added, catches Agent amyl group xanthate 100g/t is received, foaming agent 50g/t carries out copper oxide mineral roughing, obtains rougher concentration and rougher tailings；Roughing For concentrate through triple cleaning, the pulp density of triple cleaning is adjusted to 25%, 20%, 15% respectively, and dispersing agent waterglass 250g/t is added and obtains To oxidation copper concentrate and selected chats；Rougher tailings is adjusted to pulp density 30%, and activator vulcanized sodium 25g/t, collecting agent is added Amyl group xanthate 25g/t, foaming agent 10g/t carry out copper oxide mineral and scan, and obtain copper oxide and scan chats and tailing；Selected chats Sedimentation desliming is carried out after merging, obtains slime product 2 and non-mud product 2；When closed-circuit test, non-mud product 2 is used as middling recurrence The roughing of flotation operation next time；
By 2) resulting slime product 1 and 3) 4) slime product leaches: resulting slime product 2 carries out copper oxide mineral stirring leaching Out, leaching liquid-solid ratio is 4:1, and leaching agent sulfuric acid dosage is 1.5mol/L, and extraction time 4h obtains cupric immersion liquid and tailings.
Using process above, slime product leached tailings and flotation tailing contain copper grade and are down to 0.20%, and copper overall recovery is about Up to 90%.
Embodiment 3
Test sample ore is Tibet cupric oxide ore, contains cement content up to 20% or more, copper grade 4.56%, copper mineral is mainly peacock Stone, chessy copper etc., there are also a small amount of chalcopyrite and native copper, gangue mineral is mainly clay mineral and feldspar, contains a small amount of thin,tough silk cloud Mother, muscovite, quartz and carbonate rock；Malachite, chessy copper disseminated grain size are thin, are mostly penetrated into gangue mineral with disseminated.
The copper oxide recovery process is as follows:
1) ore grinding: wet-milling after crushing raw ore to fineness -0.074mm is accounted for 80%, ore milling concentration 60%；
2) ore milling product desliming: resulting ore milling product is subjected to sedimentation desliming, granularity < 0.01mm sludge is removed, obtains mine Mud product 1 and non-mud product 1；
3) non-1 flotation of mud product: 2) it is 30% that resulting non-mud product, which is adjusted concentration, and activator vulcanized sodium 300g/t is added, catches Agent amyl group xanthate 150g/t is received, foaming agent 50g/t carries out copper oxide mineral roughing, obtains rougher concentration and rougher tailings；Roughing For concentrate through triple cleaning, the pulp density of triple cleaning is adjusted to 20%, 15%, 10% respectively, and dispersing agent waterglass 300g/t is added and obtains To oxidation copper concentrate and selected chats；Rougher tailings is adjusted to pulp density 25%, and activator vulcanized sodium 30g/t, collecting agent is added Amyl group xanthate 30g/t, foaming agent 15g/t carry out copper oxide mineral and scan, and obtain copper oxide and scan chats and tailing；Selected chats Sedimentation desliming is carried out after merging, obtains slime product 2 and non-mud product 2；When closed-circuit test, non-mud product 2 is used as middling recurrence The roughing of flotation operation next time；
By 2) resulting slime product 1 and 3) 4) slime product leaches: resulting slime product 2 carries out copper oxide mineral stirring leaching Out, leaching liquid-solid ratio is 5:1, and leaching agent sulfuric acid dosage is 2.5mol/L, and extraction time 6h obtains cupric immersion liquid and tailings.
Using process above, slime product leached tailings and flotation tailing contain copper grade and are down to 0.55%, and copper overall recovery is about Up to 92%.

Claims (4)

1. a kind of beneficiation method of high mud fine-grained copper oxide mine, it is characterised in that include the following steps:
1) ore grinding: wet-milling after crushing raw ore to fineness -0.074mm is accounted for 75% ~ 85%, ore milling concentration is 50% ~ 60%；
2) ore milling product desliming: carrying out sedimentation desliming for the resulting ore milling product of step 1), remove granularity < 0.01mm sludge, Obtain slime product 1 and non-mud product 1；
3) non-1 flotation of mud product: it is 30% ~ 35% that the ore pulp of the resulting non-mud product 1 of step 2, which is adjusted concentration, and activator is added 100 ~ 300g/t of vulcanized sodium, collecting agent 50 ~ 150g/t of amyl group xanthate, it is thick that 30 ~ 60g/t of foaming agent terpenic oil carries out copper oxide mineral Choosing, obtains rougher concentration, rougher tailings；Rougher concentration adjusting pulp density 10% ~ 25%, addition dispersing agent waterglass 200 ~ 300g/t progress copper oxide is selected, obtains oxidation copper concentrate and selected chats；Rougher tailings is adjusted to pulp density 25% ~ 33%, 20 ~ 30g/t of activator vulcanized sodium is added, collecting agent 20 ~ 30g/t of amyl group xanthate, 5 ~ 15g/t of foaming agent terpenic oil carry out copper oxide Mineral are scanned, and are obtained copper oxide and are scanned chats and tailing；
4) selected chats, copper oxide obtained by step 3) are scanned after chats merges and carries out sedimentation desliming, obtain slime product 2 and non- Mud product 2；
5) roughing by the resulting non-mud product 2 of step 4) as middling recurrence flotation operation next time；
By 2) resulting slime product 1 and 4) 6) slime product leaches: resulting slime product 2 carries out copper oxide mineral leaching, Obtain cupric immersion liquid and tailings.
2. a kind of beneficiation method of high mud fine-grained copper oxide mine according to claim 1, it is characterised in that step 6) oxidation Copper mineral, which leaches, uses leaching technique, and leaching liquid-solid ratio is 3:1 ~ 5:1, and leaching agent sulfuric acid dosage is 1 ~ 2.5mol/L, leaching 4 ~ 6h of time out.
3. a kind of beneficiation method of high mud fine-grained copper oxide mine according to claim 1, it is characterised in that used in step 3) Foaming agent is the combination of terpenic oil and kerosene.
4. a kind of beneficiation method of high mud fine-grained copper oxide mine according to claim 3, it is characterised in that terpenic oil and coal The mass combination ratio of oil is 2:1, and order of addition is first to add terpenic oil, adds kerosene afterwards.
CN201910453701.3A 2019-05-28 2019-05-28 Beneficiation method for high-mud fine-grain copper oxide ore Pending CN110216018A (en)

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Cited By (3)

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CN111451003A (en) * 2020-03-05 2020-07-28 铜陵有色金属集团股份有限公司 Beneficiation method for copper-containing talc-serpentine ore easy to argillize and float
CN114713378A (en) * 2022-03-10 2022-07-08 南方科技大学 Switch type flotation reagent, preparation method and application thereof
CN114713378B (en) * 2022-03-10 2023-08-22 南方科技大学 Switch-type flotation reagent, preparation method and application thereof

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