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WO2019006889A1 - Procédé de flottation bizone pour minerai de sulfure de cuivre-cobalt utilisé dans le cadre d'une production industrielle - Google Patents

Procédé de flottation bizone pour minerai de sulfure de cuivre-cobalt utilisé dans le cadre d'une production industrielle Download PDF

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Publication number
WO2019006889A1
WO2019006889A1 PCT/CN2017/102857 CN2017102857W WO2019006889A1 WO 2019006889 A1 WO2019006889 A1 WO 2019006889A1 CN 2017102857 W CN2017102857 W CN 2017102857W WO 2019006889 A1 WO2019006889 A1 WO 2019006889A1
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WIPO (PCT)
Prior art keywords
zone
slurry
flotation
enters
ore
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/102857
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English (en)
Chinese (zh)
Inventor
卢建安
王振堂
彭云奇
段建平
杨海瑞
段景文
张恩普
张倩
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WANBAO MINING Ltd
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WANBAO MINING Ltd
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Filing date
Publication date
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Priority to AU2017421972A priority Critical patent/AU2017421972B2/en
Publication of WO2019006889A1 publication Critical patent/WO2019006889A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • 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
    • 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
    • B03D1/14—Flotation machines
    • B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
    • 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
    • B03D2201/007—Modifying reagents for adjusting pH or conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/02—Collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/04—Frothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/06—Depressants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores

Definitions

  • the invention belongs to the technical field of mineral processing engineering, and particularly relates to a two-zone flotation method for copper sulfide cobalt ore used for industrial production.
  • the beneficiation of copper sulfide cobalt ore currently has few mature industrial applications in China.
  • the recovery rate and concentrate grade are two interrelated and contradictory indicators in the field of mineral processing. There is a problem that the grade and recovery rate are not easy to be separated and controlled.
  • the technical problem solved by the invention is to provide a two-zone flotation method for copper sulphide ore for industrial production, and realize efficient recovery of copper and cobalt elements in sulphide sulphide ore in the industrial production field.
  • the use of the dual-step flotation method effectively alleviates the contradiction between the recovery rate and the concentrate grade in the field, and improves the efficiency of quality control.
  • the recovery efficiency and the optimization efficiency of the concentrate index are greatly improved, and the relative separation control of the grade and the recovery rate is realized.
  • a two-zone flotation method for copper sulfide cobalt ore for industrial production comprising the following steps
  • the ore from the automobile is directly poured into the mine bin through the original ore sieve, and transported to the jaw crusher through the heavy plate feeder, and the coarsely crushed product is transported to the intermediate heap through the belt conveyor;
  • the intermediate ore pile is set as the supply buffer for the sorting process
  • the ore of the intermediate heap is transported by belt to a semi-autogenous mill for grinding.
  • the material under the sieve enters the grinding pump pool and is sent to the hydrocyclone for classification by the slurry pump.
  • the sediment enters the ball mill for grinding, and the ball mill grinds the product. After entering the grinding pump pool, it is sent to the hydrocyclone by the slurry pump, and the overflow product is sent to the flotation, and the sediment continues to enter the ball mill for grinding;
  • Step 4 Flotation
  • Zone I is mainly used for concentrate index control
  • Zone II is used for recovery rate control
  • Zone I and Zone II have two mixing buckets, one for each. Bucket and 2# mixing tank, each of the two areas produces a concentrate product, namely concentrate 1 and concentrate 2;
  • the I-zone flotation operation adopts the process of two coarse one sweeping three fines
  • the coarse selection of the first zone is added to the 1# mixing tank.
  • the hydrocyclone overflows the slurry into the 1# mixing tank, that is, the starting point of the I zone, after the slurry is fully stirred, it enters the rough selection operation flotation tank.
  • the crude material of the I zone is added to the mixing tank of 1#, wherein the pH adjuster lime dosage is 600g/t, the pulp pH is guaranteed to be 9.5 ⁇ 10.0, the inhibitor sodium humate dosage is 150g/t, and the foaming agent 2# oil
  • the dosage is 70g/t, and the dosage of the collector butyl yellow is 60g/t.
  • the type and amount of the added agent in the rough selection operation of the I zone is: the amount of the inhibitor sodium humate is 70 g/t, Foaming agent 2# oil dosage 24g / t, collector butyl yellow dosage 35g / t.
  • the I zone sweeping operation only adds the collector butyl xanthate in an amount of 25 g/t.
  • the I zone selection operation only adds the inhibitor sodium humate in an amount of 40 g/t.
  • the selected I operation of the I zone only added the inhibitor sodium humate in an amount of 20 g/t.
  • Zone II The flotation operation in Zone II is a rough two-sweeping process
  • the chemicals in the rough selection of Zone II are added to the 2# mixing tank. After the slurry is fully mixed, it enters the rough selection and flotation tank. The slurry of the rough selection operation enters the sweeping and selection operation, and the slurry enters the selected operation area of Zone II.
  • the slurry of one operation enters the second cleaning operation, the foam returns to the rough selection operation, the second operation does not add the flotation reagent, the second slurry is selected to enter the tailings pond, and is transported to the tailings thickener through the slurry pump;
  • the operation is divided into three selections, one selected job foam enters the selected two operations, the slurry is returned to the rough selection operation, the selected two operation foams are entered into the selection three, and the selected two and the selected three operations are sequentially returned to the fine. Select one and select two, the three selected foam is the concentrate 2 product.
  • the agent for rough selection in the II region is a collector butyl xanthate and an inhibitor sodium humate in amounts of 20 g/t and 30 g/t, respectively.
  • the II zone sweeping operation only adds the collector butyl xanthate in an amount of 10 g/t.
  • the selected and selected two of the II zone were only added with inhibitor sodium humate in amounts of 15 g/t and 10 g/t, respectively.
  • the sulphide-copper-cobalt ore beneficiation method has a simple pharmacy system, but the sorting effect is good under the optimized process and the ratio of the medicaments, and the beneficiation process of the method is applied in a copper-cobalt mine.
  • Flotation Zone 1 pays attention to controlling product indicators.
  • Flotation Zone 2 mainly optimizes product recovery rate. By partitioning flotation and dividing tasks, it is a good way to alleviate the contradiction between recovery rate and grade in the ordinary beneficiation process.
  • the target solution is divided to facilitate the control of the indicator.
  • 1 is a diagram showing the relationship between the equipment of the two-zone flotation method of the copper sulfide cobalt ore according to the present invention
  • FIG. 2 is a simplified diagram of a two-zone flotation step of a copper-copper sulfide ore according to the present invention
  • FIG. 3 is a flow chart of a two-zone flotation process of copper sulfide ore according to the present invention
  • the main ore types targeted are mainly copper sulfide cobalt ore, in which the average grade of copper is 1.5%; the average grade of cobalt is 0.5%.
  • the mineralogical characteristics are: the copper mineral in the ore is mainly chalcopyrite, followed by the porphyrite, the chalcopyrite, the rare amount of natural copper and copper blue, etc.; the cobalt mineral is sulphur copper-cobalt ore; other sulfide minerals are mainly Pyrite, etc.; gangue minerals mainly include dolomite, quartz, mica, etc.; ore contains a small amount of carbonaceous matter.
  • the grinding uses a semi-autogenous grinding + ball milling SAB process.
  • the sorting process adopts a flotation process, in which the flotation process adopts district flotation, which is divided into two zones, one zone is mainly used for concentrate index control, and the second zone is used for recovery rate control.
  • the main main processes are as follows:
  • the ore density is 2.73t/m 3 , the looseness coefficient is 1.5-1.7, and the ore moisture content is 2-5%.
  • the coarse crushing station is arranged in the open air as a whole, and the ore from the automobile transportation is directly poured into the mining bin through the original ore sieve.
  • the 1500X8000mm heavy-duty plate feeder is fed into the jaw crusher.
  • the size of the crusher feed port is 850 ⁇ 1100mm, the feed size is 0-750mm, and the maximum product size is 150mm; the coarsely crushed product is transported to the intermediate pile by the 1# belt conveyor;
  • the intermediate ore heap is set as the supply buffer for the sorting process
  • the discharge end is provided with a double-layer cylindrical sieve (the inner sieve size is 20 ⁇ 40mm, and the outer sieve size is 6 ⁇ 15mm).
  • the material under the sieve enters the grinding pump pool and is sent to the hydrocyclone for classification by the slurry pump.
  • the stream product is sent to the flotation, and the sediment is passed into a ball mill for grinding.
  • the cylinder speed is 13r/min and the rotation rate is 75%.
  • the ball mill grinding product enters the grinding pump pool (shared with the semi-self-grinding pumping tank) and is sent to the hydrocyclone by the slurry pump.
  • the overflow product is sent to the flotation, and the sediment is sent to the ball mill for grinding.
  • the hydrocyclone group specification is ⁇ 500x10, the ore slurry volume is 335.7m3/h (considering the fluctuation coefficient), the overflow weight concentration is 30%, and the overflow fineness -0.074mm accounts for 80%.
  • Zone 1 and Zone 2 The flotation operation is divided into two working areas: Zone 1 and Zone 2.
  • the two operating zones each have a mixing tank, which is a 1# mixing drum and a 2# mixing drum.
  • the two zones each produce a concentrate product, respectively.
  • the specific process flow is as follows.
  • Zone 1 The flotation operation in Zone 1 is the process of two coarse and three sweeps.
  • the hydrocyclone overflow slurry enters the 1# mixing tank, which is the starting point of Zone 1.
  • the types and dosages of the added drugs in the rough selection operation were as follows: the inhibitor sodium sulfonate dosage 70g/t, the foaming agent 2# oil dosage 24g/t, and the collector butyl yellow dosage 35g/t.
  • the rough selection of the second working slurry enters the sweeping operation, and the rough selection of the operation and the rough selection of the two operations of the foam enters the selected operation area of Zone 1;
  • the sweeping operation only adds the collector butyl xanthate, the dosage is 25g/t, the foam of the sweeping operation returns to the rough selection operation, and the slurry enters the starting position of the 2nd zone 2# mixing tank;
  • the selected work in Zone 1 is divided into three selections.
  • Select 2 also added only the inhibitor sodium humate in an amount of 20 g/t, and the selected two foams entered the selected three operations.
  • the selected three operations do not add pharmacy, and the selected two and three selected granules are returned to the selected one and the second selected in sequence, and the selected three working foam is the concentrate 1 product.
  • the 2-zone flotation operation is a rough two-sweeping process.
  • the agent in the roughing operation in Zone 2 is added to the 2# mixing tank.
  • the added agent is the collector butyl xanthate and the inhibitor sodium humate, the dosages are 20g/t and 30g/t respectively, and the slurry is fully stirred and then enters. Roughly select a flotation cell.
  • the slurry of the rough selection operation enters the sweeping and selection operation, and the slurry enters the selected operation area of Zone 2.
  • the slurry from the sweeping operation enters the sweeping operation and the foam is returned to the roughing operation.
  • the second cleaning operation does not add flotation reagents, sweeps the second slurry into the tailings pond, and transports it to the tailings thickener through the slurry pump.
  • the selected work in Zone 2 is divided into three selections.
  • a selected operating foam enters the selected two operations, and the slurry is returned to the roughing operation. Both the selected one and the selected two were only added with the inhibitor sodium humate in amounts of 15 g/t and 10 g/t, respectively.
  • the selected two working foams enter the selected three, and the selected two and selected three jobs are returned sequentially. To select one and select two.
  • the three selected foams are concentrate 2 products.
  • the production indicators are as follows:
  • this method is used to achieve efficient separation of copper sulphide ore.
  • the reform process can also optimize the pharmaceutical system, and can also carry out mixed sorting of copper sulfide cobalt ore and copper oxide cobalt ore for the treatment of partial oxidation ore.
  • the treatment volume reaches 3000t/d, and when the average grade of the original ore is Cu1.5% and Co0.5%, it can produce copper sulfide with a Cu grade of 23% and a Co grade of 8%. Concentrate, Cu recovery rate of more than 90%, cobalt recovery rate of more than 80%.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne un procédé de flottation bizone pour un minerai de sulfure de cuivre-cobalt utilisé dans le cadre d'une production industrielle. Le processus de tri utilise un flux de processus de flottation, le processus de flottation utilisant la flottation dans des zones séparées, qui sont divisées en deux zones, la zone 1 étant principalement utilisée pour la régulation de l'indice du concentré, et la zone 2 pour la régulation du taux de récupération. Le procédé permet une récupération à haut rendement des éléments que sont tant le cuivre que le cobalt présents dans le minerai de sulfure de cuivre-cobalt dans le cadre d'une production industrielle, et en utilisant le procédé de flottation pas-à-pas bizone, remédie efficacement à la contradiction entre le taux de récupération et la qualité du concentré dans le domaine de la minéralurgie, améliore l'efficacité du contrôle qualité, améliore considérablement l'efficacité d'optimisation du taux de récupération et de l'indice du produit concentré, et permet une régulation relativement séparée de la qualité et du taux de récupération.
PCT/CN2017/102857 2017-07-06 2017-09-22 Procédé de flottation bizone pour minerai de sulfure de cuivre-cobalt utilisé dans le cadre d'une production industrielle Ceased WO2019006889A1 (fr)

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AU2017421972A AU2017421972B2 (en) 2017-07-06 2017-09-22 Double-region flotation method for copper-cobalt sulfide ore in industrial production

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CN201710547556.6A CN107398353B (zh) 2017-07-06 2017-07-06 一种用于工业生产的硫化铜钴矿双区浮选方法
CN2017105475566 2017-07-06

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CN113893952A (zh) * 2021-09-18 2022-01-07 金川集团股份有限公司 一种铜钴矿选矿方法
CN118807990A (zh) * 2024-08-09 2024-10-22 中南大学 高钙镁氧化铜钴矿的浮选方法

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CN108298595B (zh) * 2018-04-26 2020-03-24 浙江美都墨烯科技有限公司 一种制备硫化铜钴微米球的方法
CN109201320B (zh) * 2018-08-23 2020-04-21 北京矿冶科技集团有限公司 一种含易浮脉石铜钴矿的选矿方法
CN110935559A (zh) * 2019-11-14 2020-03-31 中国恩菲工程技术有限公司 综合处理铜钴矿的方法
CN111850295A (zh) * 2020-07-13 2020-10-30 浙江科菲科技股份有限公司 一种非洲低品位铜钴矿石的处理方法
CN115121365B (zh) * 2022-07-01 2023-04-04 阿巴嘎旗金地矿业有限责任公司 智能钼矿分选预抛工艺

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CN113893952A (zh) * 2021-09-18 2022-01-07 金川集团股份有限公司 一种铜钴矿选矿方法
CN118807990A (zh) * 2024-08-09 2024-10-22 中南大学 高钙镁氧化铜钴矿的浮选方法
CN118807990B (zh) * 2024-08-09 2025-09-12 中南大学 高钙镁氧化铜钴矿的浮选方法

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