Method for separating chalcopyrite from marcasite and pyrites in copper and sulphur ores

A separation method and chalcopyrite technology, applied in solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of low separation efficiency and poor separation effect, achieve low dosage, strong guiding significance and reference value, the effect of reducing floatability

Active Publication Date: 2016-05-25
TONGLING NON FERROUS METAL GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is that there are many disadvantages in the existing separation method of chalcopyrite, marcasite and pyrite, the separation effect is not good, and the separation efficiency is not high. Therefore, a kind of chalcopyrite and marcasite is provided. Separation method of ore and pyrite

Method used

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  • Method for separating chalcopyrite from marcasite and pyrites in copper and sulphur ores
  • Method for separating chalcopyrite from marcasite and pyrites in copper and sulphur ores

Examples

Experimental program
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Effect test

Embodiment 1

[0013] Example 1: (1), crushing and grinding: the raw ore is crushed and ground to a particle size of -0.074mm, which accounts for 70%; (2) aeration and stirring: the concentration of the ore pulp is adjusted to about 30wt%, put into the mixing tank, and inflated and stirred for 20 minutes, The aeration volume is 3L / min; (3) Rough separation: put the slurry after aeration and stirring into the flotation machine, add 40g / t of butyl xanthate and butyl ammonium black medicine, stir for 2 minutes, and perform aeration and flotation for 4 minutes to obtain Coarse concentrate and roughing tailings; (4) Primary sweeping: Add 20g / t of butyl yellow and butylammonium to the roughing tailings, stir for 2 minutes, and aerate flotation for 3 minutes to get middle ore 1 and first sweep tailings, middle ore 1 Return to roughing; (5) Secondary sweeping: add 10g / t of butyl yellow and butyl ammonium to the tailings of the first sweep, stir for 2 minutes, and float for 3 minutes to get the middle...

Embodiment 2

[0014] Example 2: (1), crushing and grinding: the raw ore is crushed and ground to a particle size of -0.074mm, accounting for 72%; (2) inflated and stirred: the pulp concentration is adjusted to about 33wt% and placed in a mixing tank, and inflated and stirred for 30 minutes. The aeration volume is 5L / min; (3) Rough separation: Put the slurry after aeration and stirring into the flotation machine, add 40g / t of butyl xanthate and butylammonium black medicine, stir for 3 minutes, and perform aeration and flotation for 6 minutes to obtain Coarse concentrate and roughing tailings; (4) Primary sweeping: Add 20g / t of butyl yellow and butylammonium to the roughing tailings, stir for 3 minutes, and aerate flotation for 5 minutes to obtain middle ore 1 and first sweep tailings, middle ore 1 Return to roughing; (5) Second sweeping: Add 10g / t of butyl yellow and butylammonium to the tailings of the first sweep, stir for 3 minutes, and aerate flotation for 5 minutes to obtain the middle o...

Embodiment 3

[0015] Example 3: (1), crushing and grinding: the raw ore is crushed and ground to a particle size of -0.074mm, accounting for 75%; (2) inflated and stirred: the pulp concentration is adjusted to about 35wt% and placed in a mixing tank, and inflated and stirred for 40 minutes. The aeration volume is 7L / min; (3) Rough separation: Put the slurry after aeration and agitation into the flotation machine, add 40g / t of butyl xanthate and butylammonium black medicine, stir for 4 minutes, and perform aeration flotation for 8 minutes to obtain Coarse concentrate and roughing tailings; (4) Primary sweeping: Add 20g / t of butyl yellow and butyl ammonium to the roughing tailings, stir for 4 minutes, and aerate flotation for 7 minutes to obtain middle ore 1 and first sweep tailings, middle ore 1 Return to roughing; (5) Secondary sweeping: add 10g / t of butyl yellow and butyl ammonium to the tailings of the first sweep, stir for 4 minutes, and aerate flotation for 7 minutes to obtain the middle...

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Abstract

The invention discloses a method for separating chalcopyrite from marcasite and pyrites in copper and sulphur ores, which comprises the following steps of: (1) carrying out crushing and grinding; (2) carrying out aerating agitation, i.e. regulating concentration of ore pulp to about 30 to 35 weight percent, placing the ore pulp into an agitator, and carrying out aerating agitation for 20 to 40min; (3) roughing to obtain rough concentrates and rougher tailings; (4) carrying out primary scavenging to obtain middlings 1 and primary scavenging tailings, and returning the middlings 1 to carry out roughing; (5) carrying out secondary scavenging to obtain middlings 2 and secondary scavenging tailings, and returning the middlings 2 to carry out primary scavenging; (6) carrying out copper tailing flotation to obtain the marcasite and total tailings; (7) carrying out primary concentration to obtain primary concentrated foam and primary concentrated tailings; (8) carrying out fine scavenging to obtain fine tailings 1 and the pyrites, and returning the fine tailings 1 to carry out primary concentration; (9) carrying out secondary concentration to obtain secondary concentrated foam and concentrated tailings 2, and returning the concentrated tailings 2 to carry out primary concentration; (10) tertiary concentration to obtain the marcasite and tailings 3, and returning the tailings 3 to carry out secondary concentration.

Description

technical field [0001] The invention relates to the field of non-ferrous metal beneficiation, in particular to a method for separating chalcopyrite, marcasite and pyrite. Background technique [0002] Minerals processed by a mine in Tongling Nonferrous Metals are mainly copper and sulfur ores. Copper minerals mainly exist in the form of chalcopyrite, most iron sulfide minerals are marcasite, and a small amount of pyrite. Both marcasite and pyrite belong to sulfide minerals. Although they are identical in chemical composition and coordination type, the degree of symmetry of the crystal structure is completely different. From the perspective of crystal structure, marcasite is orthorhombic, and pyrite is equiaxed. From the perspective of crystal morphology, marcasite is orthorhombic biconical crystals, and the crystal planes such as crystal plates, spearheads, and cockscombs are often curved and have thin stripes; In good condition, it is often in the form of cubes and pentag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 代献仁王周和赵红芬丁鹏彭时忠朱继生洪淦新闫德利万超李树兰柳红
Owner TONGLING NON FERROUS METAL GROUP CORP
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