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Beneficiation method for efficiently recovering copper and molybdenum associated with gold and rhenium from porphyry type copper-molybdenum deposit

A beneficiation method and technology of copper-molybdenum ore, which is applied in the beneficiation of molybdenum and copper, can solve the problems of weak secondary enrichment effect of mineralized foam, many impurities entrained in foam, and poor separation precision of copper and molybdenum, so as to reduce the trough drop Loss risk, improvement of grinding efficiency, effect of reducing grinding load

Active Publication Date: 2019-10-29
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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  • Beneficiation method for efficiently recovering copper and molybdenum associated with gold and rhenium from porphyry type copper-molybdenum deposit
  • Beneficiation method for efficiently recovering copper and molybdenum associated with gold and rhenium from porphyry type copper-molybdenum deposit
  • Beneficiation method for efficiently recovering copper and molybdenum associated with gold and rhenium from porphyry type copper-molybdenum deposit

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Experimental program
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Effect test

specific Embodiment approach 1

[0026]A method for efficiently recovering copper and molybdenum associated with gold rhenium from porphyry copper-molybdenum ore, comprising the following steps:

[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...

specific Embodiment approach 2

[0047] A method for efficiently recovering copper and molybdenum associated with gold rhenium from porphyry copper-molybdenum ore, comprising the following steps:

[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 flota...

specific Embodiment approach 3

[0069] A method for efficiently recovering copper and molybdenum associated with gold rhenium from porphyry copper-molybdenum ore, comprising the following steps:

[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 ...

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Abstract

The invention discloses a beneficiation method for efficiently recovering copper and molybdenum associated with gold and rhenium from porphyry type copper-molybdenum deposit and belongs to the technical field of mineral processing. The method comprises the following steps: roughly grinding raw ore under the condition of low alkalinity, and carrying out primary mixed flotation roughing, secondary mixed flotation scavenging and tailing discarding to obtain mixed flotation roughing concentrate; finely grinding the mixed flotation roughing concentrate and then carrying out secondary mixed flotation concentrating, primary molybdenum roughing and secondary molybdenum scavenging to obtain copper concentrate with 30 percent or above of copper and molybdenum roughing concentrate; regrinding and sieving the molybdenum roughing concentrate to obtain first molybdenum concentrate; and carrying out molybdenum concentrating for five times on sieved tailings, and alternatively using an inhibitor and partially combining and returning ore in molybdenum to obtain second molybdenum concentrate, wherein the content of molybdenum in comprehensive molybdenum concentrate is 50 percent or above. The beneficiation method disclosed by the invention adopts a technical solution of rough grinding mixed flotation of raw ore, fine grinding recleaning of mixed flotation rough concentrate, regrinding and sieving graded ore grinding sorting of molybdenum concentrate and has the characteristics of simple reagent system, convenient operation and management, good separating effect, stable indexes, good reproducibility and the like.

Description

technical field [0001] The invention belongs to the technical field of mineral processing; in particular, it relates to a beneficiation method for efficiently 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...

Claims

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Application Information

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Patent Type & Authority Applications(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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