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Collecting agent for refractory gold ores

A technology for collectors and gold ore, applied in flotation, solid separation and other directions, can solve the problems of loss of metal content, fine particle size, distribution and dispersion of gold minerals, and achieve the improvement of concentrate grade and recovery rate, and mineral floating. High speed and stable effect of flotation foam

Active Publication Date: 2015-04-22
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbonaceous silicate-type gold ores have high quartz content, and the gold minerals are finely distributed and dispersed, and some gold minerals are wrapped in gangue minerals and other minerals in the form of fine particles, so it is difficult to be effectively recovered; some of the ore The carbonaceous substance adsorbs chemicals during the flotation process, which affects the collection of gold minerals by chemicals, resulting in a certain degree of loss of metal content; resulting in unsatisfactory beneficiation results, low gold concentrate grade and recovery rate, and a waste of mineral resources , bring losses to enterprises and society

Method used

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Examples

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Effect test

preparation example Construction

[0015] The preparation of refractory gold ore collector of the present invention: will take by weight thiazonitrile ester, 25 # Add black medicine, liquid butyl ammonium black medicine and black medicine acid into a stirring tank, stir and mix under normal temperature and pressure for 0.5 to 1 hour, and the product is obtained.

[0016] Thiazepam (ester-105) is a collector with foaming properties, mainly used for flotation of copper, nickel and other sulfide ores, polymetallic sulfide ores and associated gold and silver; 25 # Black medicine has collecting and foaming properties, and can be used for flotation of copper, lead, zinc, bismuth sulfide minerals. It can be used together with black medicine acid to enrich gold, silver and other precious metals; liquid butyl ammonium Black medicine has good selectivity and foaming ability, and can float gold, copper or lead at a low pH value. 25 # Black medicine has collecting and foaming properties, and can be used for flotation of ...

Embodiment 1

[0019] By weight, take respectively 20 parts, 25 parts of thiazonitrile ester # 15 parts of black medicine, 60 parts of liquid butylammonium black medicine and 5 parts of black medicine acid were stirred and mixed for 0.5 hour under normal temperature and pressure to prepare a collector for refractory gold ore. When flotation of carbonaceous silicate-type gold ore with raw ore grade of 4.80 g / t, using this collector, the yield of Au coarse concentrate is 17.5%, the grade of Au coarse concentrate is 22.64 g / t, and the recovery rate of Au is 81.94% .

Embodiment 2

[0023] In parts by weight, take 25 parts, 25 parts of thiazonitrile ester respectively # 20 parts of black medicine, 40 parts of liquid butyl ammonium black medicine and 15 parts of black medicine acid were stirred and mixed for 1 hour under normal temperature and pressure to prepare a refractory gold ore collector. When flotation of carbonaceous silicate-type gold ore with raw ore grade of 4.80 g / t, using this collector, the yield of Au coarse concentrate is 18.80%, the grade of Au coarse concentrate is 21.20 g / t, and the recovery rate of Au is 83.07% .

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PUM

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Abstract

The invention provides a collecting agent for refractory gold ores. The collecting agent comprises components in parts by weight as follows: 20-40 parts of cyanoethyl diethyl dithionocarbamate, 10-20 parts of a 25# black catching agent, 30-60 parts of liquid ammonium dibutyl dithiophosphate and 5-15 parts of a black catching agent acid. The collecting agent has dual attributes of collecting and bubbling, the selectivity is good, the collecting capability is high, the flotation froth is stable, the mineral floating speed is high, and the concentrate grade and the recovery rate can be effectively increased.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation, and relates to a flotation reagent used for gold ore flotation, in particular to a refractory gold ore collector. Background technique [0002] In addition to leaching, the enrichment method of gold minerals, most of the dressing plants still use the flotation method to recover gold minerals during production. At present, the collectors with good collection effect on gold minerals include aniline ammonium black medicine, butyl ammonium black medicine, gold trapping agent, Y-89, M16, QF and other flotation agents. The ability is strong, but the selectivity is poor, there are problems of low gold recovery rate and large index fluctuation, the flotation effect is not ideal, the resource utilization rate is low, and it is difficult to realize the economical and efficient development and utilization of mineral resources. [0003] In recent years, great progress has been made in the research...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/014B03D101/02B03D101/04
Inventor 刘守信周涛师伟红余江鸿吴斌顾小玲高彦平张红白守元
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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