Sorting technique for valuable elements associated with gold

Abstract

The invention discloses a sorting technique for valuable elements associated with gold. The sorting technique comprises the steps of preparing a compound bacteria solution, removing sulfur, carbon and phosphorous, sorting and preparing bacterial manure. The invention further discloses bacterial manure capable of treating soil pollution. The technique is pollution-free, low in energy consumption and simple in operation technique, can be industrialized on large scale, and the bacterial manure can be prepared from waste bacteria liquid so as to change wastes into valuables while the valuable elements are sorted.

Description

[0001] technical field [0002] The invention belongs to the technical field of mineral processing, and in particular relates to a sorting process for valuable elements associated with gold. [0003] Background technique [0004] The associated gold reserves of non-ferrous metals in my country account for 44.3% of the total gold reserves, and more than half of the associated gold is produced from gold-bearing iron ore. However, there is still a large gap between the recovery of associated gold in iron ore in my country and developed countries. For example, the recovery rate of associated gold in the United States is 60% to 70%, and that in Russia is 70%. The average recovery rate of associated gold in my country is only 50% to 60%. %, resources have not been fully utilized comprehensively. At present, the beneficiation method of gold-bearing and iron-bearing ores in my country is to flotation the concentrate, so that gold can be enriched in the concentrate as much as possib...

AI Technical Summary

Problems solved by technology

[0009] However, due to the differences in the properties of ores in various mines, the effect of using new agents is not ideal. The main reasons are: 1. The effect of using new inhibitors on pyrite under low alkalinity conditions is not as good as using a large amount of lime

2. When using a new collector with a special ability to collect gold, if the collector has a strong selectivity and a weak ability to collect pyrite, the pyrite-wrapped gold and continuous gold will enter the tailings, resulting in The gold recovery rate is reduced; if the collector has a strong collection capacity, the pyrite will enter the concentrate, resulting in a decrease in the grade of the concentrate and making it difficult to sell

Although improving the grinding fineness is beneficial to the recovery rate of gold, due to the difference in particle size between gold and iron intercalation, increasing the grinding fineness will easily lead to a decrease in the recovery rate of iron, and over-grinding will easily occur, which will cause slurry muddying and cause harm to flotation. , and greatly increase the energy consumption of grinding

The improvement of the mineral processing process involves issues such as process connection and investment in improving the process, so the process improvement is complicated and the investment is large

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