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Collecting agent for increasing beneficiation indicator of associated gold and silver

A collector and index technology, applied in flotation, solid separation, etc., can solve the problems of low index of associated gold and silver beneficiation, loss of enterprises and society, unsatisfactory beneficiation effect, etc., to achieve improved separation effect, strong adaptability, The effect of fast mineral floating speed

Inactive Publication Date: 2014-04-02
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In non-ferrous metal ores such as copper ore, copper-lead ore, copper-nickel ore, copper-lead-zinc ore, copper-zinc ore, copper-molybdenum ore and other non-ferrous metal ores, the distribution characteristics of some associated gold and silver minerals are more complicated, and some of the distribution of gold and silver minerals are fine, and the distribution is more complex. Scattered; some are wrapped in gangue minerals and other minerals in the form of fine particles, and some are produced in the form of cracked gold and inclusion gold, or in the form of cracked gold at the edge of chalcopyrite, which is difficult to obtain effectively Recycling will cause a certain degree of loss of metal content, resulting in unsatisfactory beneficiation effect, low beneficiation index of associated gold and silver, waste of mineral resources, and bring losses to enterprises and society

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In parts by weight, take 18 parts of n-butyl xanthate propionitrile, 32 parts of aniline black medicine, 25 parts # 45 parts of black medicine and 5 parts of black medicine acid were mixed under normal temperature and pressure for 0.5 hour to prepare the collector. When the copper ore with a Cu grade of 0.89% and an Au grade of 2.50g / t is used for flotation, the collector is used. The yield of copper concentrate in the laboratory closed circuit test is 4.21%, and the copper concentrate contains Cu18.91%, Cu The recovery rate is 88.31%; the copper concentrate contains Au40.15 g / t, and the Au recovery rate is 68.54%.

Embodiment 2

[0026] In parts by weight, take 15 parts of isobutyl xanthate propionitrile, 25 parts of aniline black medicine, 25 parts # 45 parts of black medicine and 15 parts of black medicine acid were mixed under normal temperature and pressure for 1 hour to prepare the collector. When flotation of copper-zinc ore with Cu grade of 0.55%, Zn grade of 3.90% and Au grade of 2.00g / t, this collector is used. The yield of copper concentrate in laboratory closed circuit test is 2.45%, and the copper concentrate contains Cu18 .58%, the Cu recovery rate is 82.35%; the copper concentrate contains Au50.53 g / t, and the Au recovery rate is 62.24%.

Embodiment 3

[0030] In parts by weight, take 15 parts of n-butyl xanthate propionitrile, 35 parts of aniline black medicine, 25 parts # 35 parts of black medicine and 15 parts of black medicine acid were mixed under normal temperature and pressure for 0.6 hours to prepare the collector. When flotation of copper-lead-zinc ore with Cu grade of 0.20%, Pb grade of 4.85%, Zn grade of 3.90%, Au grade of 1.10g / t, Ag113.20g / t in flotation, the collector is used, and the laboratory closed-circuit test copper Concentrate yield rate is 0.65%, copper concentrate contains Cu18.89%, Cu recovery rate is 63.84%, copper concentrate contains Au70.36 g / t, Au recovery rate is 40.37%; Pb concentrate yield rate is 6.29%, lead concentrate Containing Pb67.98%, Pb recovery rate is 88.21%, lead concentrate contains Ag1105.16 g / t, Ag recovery rate is 61.41%.

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Abstract

The invention provides a collecting agent for increasing the beneficiation indicator of associated gold and silver. The collecting agent consists of 15-20 parts by weight of alkyl propiontrile xanthate ester, 25-35 parts of dianilinodithiophosphoric acid, 30-45 parts of 25# dithiophosphate and 5-15 parts of dithiophosphate acid. The collecting agent has collecting and foaming properties and is high in selectivity and collecting capability, effective enrichment of nonferrous metal associated gold and silver can be realized in the pH value of 7-10, and the beneficiation recovery rate of the nonferrous metal associated gold and silver can be increased by 2-5 percent; meanwhile, the collecting agent has a better floatation effect on carrier minerals of the associated gold and silver, and is an efficient collecting agent with a wider application range for increasing the nonferrous metal associated gold and silver.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation, and relates to a flotation reagent for improving the beneficiation index of associated gold and silver, in particular to a collector for improving the beneficiation index of associated gold and silver of non-ferrous metal ore. Background technique [0002] There are many types of non-ferrous metal deposits in my country, rich in resources, and most of them are associated with gold and silver. Metal sulfide minerals are the main carrier minerals of gold, and almost all silver minerals are closely related to copper sulfide ore and galena, that is, copper sulfide ore and galena are used as carrier minerals. The recovery of gold and silver minerals associated with non-ferrous metals depends on the recovery of carrier minerals on the one hand. In this case, the recovery level of gold and silver minerals mainly depends on the characteristics of the carrier, while the characteristics of itself...

Claims

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Application Information

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IPC IPC(8): B03D1/016B03D101/02
Inventor 师伟红刘守信周涛顾小玲高彦萍吴斌林承伟吉鸿安高维荣
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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