Summary of gold ore dressing process equipment on golden iron ore operations

This beneficiation process has a better enrichment effect on gold

According to the chemical multi-element analysis of the final concentrate and tailings by the industrial concentrator, the Au content of the flotation gold concentrate is 55.50g/t, the Ag content is 27g/t, and the As content is 5.67%, which is relatively high. Its effect on gold is mainly manifested in that it is easily dissolved in alkaline cyanide solution during cyanidation, consuming cyanide, oxygen and alkali, thereby reducing the dissolution rate of gold, and the products decomposed in alkaline pulp are all the same The surface of gold contacts, and a thin film is formed on the surface of gold, which hinders the interaction of gold, oxygen and cyanide, and the resultant is also serious to environmental pollution. Therefore, when oxidizing and leaching gold concentrate, the feed rate of the concentrate should be properly controlled to avoid excessively high dissolved arsenic concentration and affecting microbial activity.

It can be seen from the operation flow test of the gold mine beneficiation equipment that the gold content in the tailings is 0.68g/t, and the loss is small, indicating that the process and the reagent system have a better enrichment effect on gold.

The process conditions can meet the requirements of gold beneficiation

The semi-industrial verification test shows that the designed gold ore beneficiation equipment operation principle is basically reasonable in the process flow, and the process conditions can basically meet the requirements of gold beneficiation. The design is based on the nature of the ore, and the gold-bearing minerals are mainly pyrite, arsenopyrite and other sulfide minerals. The flotation process of one roughing, two beneficiation, and two sweeping is used for separation. During the process test of the semi-industrial beneficiation equipment, there were fluctuations in the amount of ore, the dosage of the chemical, and the concentration of the slurry, but the separation index was not affected. On the premise of not changing the principle process, the use of new collectors can increase the gold recovery rate, and is conducive to the stability of indicators and production operations. The final product indicators for semi-industrial concentrates are 5.77% yield, 55.5g/t gold, 83.35% gold recovery, and 0.68g/t gold in discarded tailings.

Keywords:gold ore beneficiation equipment ,gold ore dressing process,golden iron ore