Special gold dissolving agent for gold ore

Abstract

The invention provides a special gold dissolving agent for a gold ore. The special gold dissolving agent is prepared by reacting and mixing carbonate or bicarbonate, hydroxide, permanganate, perchlorate, persulphate, ammonium salt, sodium ferrocyanide or potassium ferrocyanide. The gold dissolving agent has the advantages of rapidly dissolving metal gold, selectively leaching gold from various gold ores, being low in toxicity and the like.

Description

technical field [0001] The invention relates to an ore dressing agent, in particular to a special gold dissolving agent for gold ore. Background technique [0002] Gold is a rare metal, the element abundance in the earth is 0.8×10 -6 , only one ten millionth of iron, one 23rd of silver. Gold is an inert metal that often exists as a single substance. After long-term mining, gold in nature is becoming rarer and rarer, and there are fewer and fewer mines with bright gold. The gold mines that have been explored recently are almost all microscopic gold, submicroscopic gold, and sub-electron diffraction gold. It exists in the form of oxidation, sulfide or other alloys. Fine-grained gold is distributed in the ore, which increases the difficulty of gold extraction, and the cost of gold mining also increases year by year. For fine-grained gold, gold that exists in the form of oxidation, sulfide or other alloys, chemical extraction is often used. Cyanide is one of the main method...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned cyanide-free leaching gold dressing agent is not only effective for gold, but also effective for metals such as copper and silver that often coexist with gold. The amount of dressing agent is relatively large, and the leachate contains various heavy metals, thus increasing the subsequent gold purification process and cost.