Process for directly separating chalcopyrite from molybdenite through superconducting magnetic separation

Abstract

The invention discloses a process for directly separating chalcopyrite from molybdenite through superconducting magnetic separation, and aims at solving technical problems that a large number of inhibitors need to be used in existing copper-molybdenum separation of the chalcopyrite and the molybdenite, selectivity is poor, and severe pollution is easily caused to environment. A rough process of the technology comprises the steps that firstly, under a condition of low magnetic field intensity, a superconducting magnetic separator is used for carrying out superconducting low-intensity magnetic separation on mixed concentrate of the chalcopyrite and the molybdenite, and strong magnetic minerals are removed; and then under the condition of high magnetic field intensity, the superconducting magnetic separator is used for carrying out superconducting high-intensity magnetic separation, and realizing direct separation of the chalcopyrite and the molybdenite. According to the technology, a superconducting low-intensity magnetic separation-superconducting high-intensity magnetic separation combined technology is used in a breakthrough mode, separation precision and efficiency are greatly improved, and meanwhile, chemicalsdo not need to be added, a technological process is energy-saving and environmentally friendly, ecological and economic comprehensive benefits are achieved, a resourcerecycling rate is high, and separation of the chalcopyrite and the molybdenite is directly completed.

Description

technical field [0001] The invention belongs to the technical field of mineral separation, in particular to a method for separating chalcopyrite and molybdenite, in particular to a process for directly separating chalcopyrite and molybdenite through superconducting magnetic separation. Background technique [0002] Chalcopyrite is a relatively common copper mineral that can be formed in almost different environments, but it is mainly the product of hydrothermal action and contact metasomatism, and can often form deposits of a certain scale; its production areas are all over the world. In industry, it is the main raw material for copper smelting. Molybdenite is the most widely distributed molybdenum mineral, and it is the main mineral raw material for extracting molybdenum. In the concentrate obtained from the separation of some ore materials, chalcopyrite and molybdenite are often mixed together because of their relatively close floatability, but the floatability of chalcop...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a process for directly separating chalcopyrite and molybdenite by superconducting magnetic separation. A large number of inhibitors are required, which not only has poor selectivity, but also easily causes serious pollution to the environment; this process uses a breakthrough combination of superconducting weak magnetic separation and superconducting strong magnetic separation, which greatly improves the selection accuracy and efficiency, and the separation index is good and stable, which reduces the production cost; at the same time, there is no need to add any chemicals. Separation of molybdenite