Copper-lead-zinc environment-friendly non-poisonous agent separation technology

Abstract

The invention discloses a copper-lead-zinc environment-friendly non-poisonous agent separation technology. The copper-lead-zinc environment-friendly non-poisonous agent separation technology comprisesthe steps of mineral separation, ore grinding, copper-lead bulk flotation, copper-lead separation and zinc ore separation; a copper-lead bulk flotation agent adopted during copper-lead bulk flotationcomprises sodium sulfite, zinc sulfate, PAC and 25# black powder; a copper-lead separation agent adopted during copper-lead separation comprises activated carbon, sodium sulphide, lime, sodium thioglycollate, ethyl thio carbamate and a lead collecting agent; and an agent adopted during zinc ore separation comprises copper sulfate, butyl xanthate, isopentyl xanthate and lime. The copper-lead-zincenvironment-friendly non-poisonous agent separation technology provided by the invention is good in copper-lead separation effect, short in operation procedure, convenient to operate and easy to achieve, and in addition, the selected agent is good in effect, small in poisonousness and low in environmental threat.

Description

technical field [0001] The invention relates to the field of non-ferrous metal beneficiation, in particular to a technology for separating copper, lead and zinc from environmentally friendly and non-toxic agents. Background technique [0002] At present, there are two schemes for the separation of copper and lead, one is floating copper to suppress lead, and the other is floating lead to suppress copper. The commonly used methods are as follows: (1) Dichromate method, using dichromate to suppress galena , to realize the suppression of lead and floating copper, but this method is poor to the galena activated by copper ions, and this method is more polluting to the environment; (2) cyanide method, the inhibition of cyanide to chalcopyrite It is strong, but it has almost no inhibitory effect on lead ore. Therefore, using this method can inhibit copper floating lead and obtain better results. However, because sodium cyanide or potassium cyanide is highly toxic, it is extremely h...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two schemes for the separation of copper and lead, one is floating copper to suppress lead, and the other is floating lead to suppress copper. The commonly used methods are as follows: (1) Dichromate method, using dichromate to suppress galena , to realize the suppression of lead and floating copper, but this method is poor to the galena activated by copper ions, and this method is more polluting to the environment; (2) cyanide method, the inhibition of cyanide to chalcopyrite It is strong, but it has almost no inhibitory effect on lead ore. Therefore, using this method can inhibit copper floating lead and obtain better results. However, because sodium cyanide or potassium cyanide is highly toxic, it is extremely harmful to the human body. , can easily lead to death, and sodium cyanide or potassium cyanide agents have great damage to the environment, large pollution, and can dissolve precious metals, resulting in inconvenient use