Process method for separating talc and chalcopyrite through three-step method and collecting agent used in process method

Abstract

The invention provides a process method for separating talc and chalcopyrite through a three-step method and a collecting agent used in the process method. The method comprises the steps of carrying out ore grinding, carrying out first-step roughing, carrying out second-step concentration, and carrying out third-step table reselection and regrinding operation. The process method aims at separationof the talc and the chalcopyrite, the preferential copper separation technological process is adopted for the first time under the condition that a special-effect talc inhibitor is not added, and effective separation of the talc and the chalcopyrite is achieved. According to the process method, the collecting agent TB-1 formed by mixing isobutyl xanthate propionitrile ester, N-allyl-O-alkyl thiocarbamate and Spans type sorbitan ester is adopted to strengthen flotation of the chalcopyrite, the thickness of a foam layer is adjusted through the defoaming performance of the collecting agent TB-1,and the relative floating speed of the talc and the chalcopyrite is changed; and the flotation and reselection combined technological process is adopted, and effective separation of talc and chalcopyrite is achieved through three steps. The flotation reagent adopted in the process method has the characteristics of low toxicity or no toxicity, environment friendliness, good effect and the like, and an environment-friendly and high-efficiency process method for separating the talc and the chalcopyrite is provided.

Description

technical field [0001] The invention relates to the technical field of mineral processing engineering, in particular to a process for separating talc and chalcopyrite and a used collector. Background technique [0002] The separation of talc and chalcopyrite is a recognized technical problem in the field of mineral processing. Due to the low hardness of talc and its natural buoyancy, there is a large amount of easily floatable slime in the flotation pulp, which is produced together with the concentrate, resulting in Decrease in concentrate grade. At the same time, the proportion of talc-type copper sulfide minerals is increasing, and the smelting industry has increasingly high requirements for concentrate quality, which makes it important to realize the efficient separation and recovery of talc and chalcopyrite. [0003] At present, there are two main methods for the separation of talc and chalcopyrite: one is to use the physical properties and flotation characteristics of ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a three-step process for separating talc and chalcopyrite, to solve the technical problem of beneficiation that talc and copper sulfide minerals cannot be effectively separated

Images