Preparation and applications of copper sulphide ore high efficiency composite collecting agent

Abstract

The invention relates to preparation and applications of a copper sulphide ore high efficiency composite collecting agent. The preparation method comprises following steps: ethylene propylene thiamine, diethylin dithio formate cyanide ethyl ester, and sodium n-butylxanthate ae subjected to organic dissolving defoaming and magnetic stirring, and are reacted at 15 to 30 DEG C so as to obtain T-02; T-02 is applied in flotation separation of associated gold containing high sulfur copper sulphide ore as a copper sulphide ore high efficiency composite collecting agent. Appropriate amounts of the copper sulphide ore high efficiency composite collecting agent are added in a step of coarse roughing, a step of scavenging, and a step of secondary refining. The components are widely available and cheap; the preparation method is simple; advantage complementation of the components is achieved; the collecting capacity is excellent; selectivity is high; medicine consuming amount is low; production cost is low; and associated gold recovery rate is high; and the copper sulphide ore high efficiency composite collecting agent is especially suitable for flotation separation of associated gold containing high sulfur copper sulphide ore.

Description

technical field [0001] The invention relates to the preparation and application of a high-efficiency composite collector for copper sulfide ore, which is especially suitable for the flotation application of high-sulfur gold-containing copper sulfide minerals. Background technique [0002] The main copper-bearing minerals in copper ore resources are called chalcopyrite. Due to the dense symbiosis of chalcopyrite and pyrite, and the ionized copper ions in chalcopyrite water have a strong activation effect on them, resulting in the difficulty of copper-sulfur flotation separation, so the high-alkali flotation process is generally used at home and abroad to achieve Copper and sulfur are separated, but the high alkali environment not only causes the recovery rate of copper in the copper concentrate to be low, but also makes some associated metals such as gold and silver be suppressed and enter the sulfur concentrate, resulting in insufficient comprehensive recovery of these rare ...

AI Technical Summary

Problems solved by technology

Due to the dense symbiosis of chalcopyrite and pyrite, and the ionized copper ions in chalcopyrite water have a strong activation effect on them, resulting in the difficulty of copper-sulfur flotation separation, so the high-alkali flotation process is generally used at home and abroad to achieve Copper and sulfur are separated, but the high alkali environment not only causes the recovery rate of copper in the copper concentrate to be low, but also makes some associated metals such as gold and silver be suppressed and enter the sulfur concentrate, resulting in insufficient comprehensive recovery of these rare and precious metals use

[0003] The traditional effective collectors for copper sulfide ore include xanthate and black medicine, etc. Xanthate collectors have the advantages of high surface activity, easy storage, low cost, and strong collection ability, but their selectivity is poor; The selectivity of the drug collector is better, but it has almost no selectivity to pyrite, and the collection capacity is weak

In order to find suitable collectors, in recent years, people in the industry have developed a series of new copper sulfide collectors in the direction of high efficiency, low toxicity, low consumption, and low cost, such as Y-89 series, ester 105, Z-200 , QA-02, PAC, BK-404, etc. However, in practical industrial applications, low-cost collectors with both selectivity and collection capacity have not yet appeared

[0004] Chinese patent application CN201510868601.0 discloses "a low-grade copper sulfide collector and its preparation method". The components contain thiourethane and kerosene, but there are many components, complicated preparation process, high price, and no Involving the recovery of associated gold and other deficiencies; the invention of Chinese patent application CN20121055836.9 discloses "a high-efficiency composite collector for copper sulfide minerals and its use". , but there are deficiencies such as complex components, high price, weak selectivity, and inability to recover associated gold; Chinese patent application CN201410103314.4 discloses "a high-efficiency copper sulfide collector", which involves high efficiency and environmental protection. However, the selectivity to copper sulfide minerals is limited, the collection ability is not strong, and the associated gold cannot be recovered; Chinese patent application CN02128018. Collector", which can be used in the flotation of copper sulfide ore efficiently and environmentally friendly, but the components are complex, the preparation process is long, the selectivity to copper sulfide minerals is limited, the collection capacity is not strong, and the associated gold cannot be recovered

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