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A kind of beneficiation method of recovering copper and molybdenum associated with gold rhenium from porphyry type copper-molybdenum ore

A beneficiation method and copper-molybdenum ore technology, applied in the beneficiation of molybdenum and copper, can solve the problems of weak secondary enrichment of mineralized foam, many impurities entrained in foam, poor separation accuracy of copper and molybdenum, etc. Risk of loss, improved grinding efficiency, and the effect of reducing grinding load

Active Publication Date: 2021-02-12
HEILONGJIANG DUOBAOSHAN COPPER LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mixed concentrate contains a large amount of residual collectors, and the foam is thick and difficult to merge. The "secondary enrichment effect" of the mineralized foam is weak, and there are more impurities in the foam, and the amount of inhibitor is large, and the selectivity is poor. Unenvironmental protection and other factors lead to poor separation accuracy of copper and molybdenum, excessive mutual content, and high operating costs

Method used

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  • A kind of beneficiation method of recovering copper and molybdenum associated with gold rhenium from porphyry type copper-molybdenum ore
  • A kind of beneficiation method of recovering copper and molybdenum associated with gold rhenium from porphyry type copper-molybdenum ore
  • A kind of beneficiation method of recovering copper and molybdenum associated with gold rhenium from porphyry type copper-molybdenum ore

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Experimental program
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Effect test

specific Embodiment approach 1

[0026] A method for beneficiating copper and molybdenum that reclaims associated gold rhenium from porphyry type copper-molybdenum ore, comprising the steps of:

[0027] Step 1. Crush the raw ore and grind it finely with a ball mill. The content of the grinding fineness of -0.074mm particle size grade accounts for 55% of the total weight of the ore. During the grinding process, add 500g / t of lime, add water to adjust the slurry until the pH of the ore is 7. Obtain the ore grinding slurry for use;

[0028] Step 2. Add 100g / t of water glass, 80g / t of butyl xanthate, 10g / t of sulfonated kerosene, and 20g / t of methyl isobutyl carbinol to the grinding pulp obtained in step 1 in order to carry out copper-molybdenum mixing. Flotation roughing, copper molybdenum mixed flotation roughing time 3 ~ 6min, get copper molybdenum mixed flotation rougher concentrate and copper molybdenum mixed flotation rougher tailings, stand-by;

[0029] Step 3, grind the copper-molybdenum mixed flotation ro...

specific Embodiment approach 2

[0047] A method for beneficiating copper and molybdenum that reclaims associated gold rhenium from porphyry type copper-molybdenum ore, comprising the steps of:

[0048] Step 1. Crush the raw ore and grind it finely with a ball mill. The content of the grinding fineness -0.074mm particle size grade accounts for 60% of the total weight of the ore. During the grinding process, add 800g / t of lime, add water to adjust the slurry until the pH of the slurry is 8. Obtain the ore grinding slurry for use;

[0049] Step 2. Add 200g / t of water glass, 100g / t of butyl xanthate, 15g / t of sulfonated kerosene, and 30g / t of methyl isobutyl carbinol to the grinding slurry obtained in step 1 in order to carry out copper-molybdenum mixing. Flotation roughing, copper molybdenum mixed flotation roughing time 3 ~ 6min, get copper molybdenum mixed flotation rougher concentrate and copper molybdenum mixed flotation rougher tailings, stand-by;

[0050] Step 3. Grind the copper-molybdenum mixed flotati...

specific Embodiment approach 3

[0069] A method for beneficiating copper and molybdenum that reclaims associated gold rhenium from porphyry type copper-molybdenum ore, comprising the steps of:

[0070] Step 1. Crush the raw ore and grind it finely with a ball mill. The content of the grinding fineness -0.074mm particle size grade accounts for 55-60% of the total weight of the ore. During the grinding process, add lime 500-800g / t, add water to adjust the slurry Until the pH of the pulp is 7-8, the grinding pulp is obtained and set aside;

[0071] Step 2. Add water glass 100-200g / t, butyl xanthate 80-100g / t, sulfonated kerosene 10-15g / t, methyl isobutyl carbinol 20- 30g / t, carry out copper-molybdenum mixed flotation roughing, copper-molybdenum mixed flotation roughing time 3 ~ 6min, get copper-molybdenum mixed flotation roughing concentrate and copper-molybdenum mixed flotation roughing tailings, stand-by;

[0072] Step 3, using a ball mill to grind the copper-molybdenum mixed flotation rougher concentrate ob...

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Abstract

The invention discloses an ore dressing method for efficiently recovering copper and molybdenum associated with gold rhenium from porphyry type copper-molybdenum ore, which belongs to the technical field of mineral processing. In the method of the invention, the raw ore is coarsely ground under the condition of low alkalinity, and the tailing is carried out through the first mixed flotation roughing and the second mixed flotation sweeping to obtain the mixed flotation roughing concentrate; Secondary mixing and flotation concentration, primary molybdenum roughing, and secondary molybdenum sweeping to obtain copper concentrate and molybdenum roughing concentrate containing more than 30% copper; molybdenum roughing concentrate is reground and screened to obtain the first molybdenum concentrate, screened The tailings are separated by five times of molybdenum concentration, and the inhibitors are used alternately. Part of the molybdenum middle ore is merged and returned to obtain the second molybdenum concentrate. The comprehensive molybdenum concentrate contains more than 50% molybdenum. The technical ideas of the present invention are raw ore coarse grinding mixed floating-mixed floating coarse concentrate fine grinding re-selection-molybdenum coarse fine regrinding screening sub-step grinding ore separation, which has simple medicament system, convenient operation and management, good separation effect and stable index and good reproducibility.

Description

technical field [0001] The invention belongs to the technical field of mineral processing; in particular, it relates to a beneficiation method for recovering copper and molybdenum associated with gold rhenium from porphyry-type copper-molybdenum ore. Background technique [0002] For the flotation of porphyry-type copper-molybdenum ores with copper as the main and associated molybdenum, there are generally three schemes: (1) Priority flotation, which is suitable for processing copper-molybdenum ores with less sulfide content in the raw ore. The advantage of this scheme is that the dosage of reagents is small, but it is difficult to reactivate the suppressed copper or molybdenum ore, and the process is complicated, the flotation index is poor, and it is rarely used in production practice. (2) Equal flotation-copper-molybdenum separation-enhanced copper separation, suitable for processing copper-molybdenum ores with high molybdenum content in raw ores. This scheme can effecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03B9/00B03B1/00B03D1/02B03D103/04
CPCB03B1/00B03B7/00B03B9/00B03D1/025B03D2203/04
Inventor 刘春龙赖桂华李广甘永刚鲁军魏转花吴双桥李国尧黄子令何小民
Owner HEILONGJIANG DUOBAOSHAN COPPER LTD
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