Floating magnetic combined copper-molybdenum sorting-separation method

A separation method and technology of copper and molybdenum, applied in the directions of magnetic separation, flotation, solid separation, etc., can solve the problems of substandard copper content in molybdenum concentrate, poor separation effect of copper and molybdenum, and high molybdenum content in copper concentrate. The effect of improving the harvesting effect, reducing the content of magnetic impurities and reducing the loss of molybdenum

Active Publication Date: 2017-04-26
江苏旌凯中科超导高技术有限公司
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to solve the poor separation effect of copper and molybdenum in copper-molybdenum mixed concentrate and copper-molybdenum ore raw ore in the prior art, high production cost, copper content in the obtained molybdenum concentrate is not up to standard, and molybdenum in the obtained copper concentrate. The problem of high content provides a new floating magnetic combined copper and molybdenum sorting-separation method

Method used

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  • Floating magnetic combined copper-molybdenum sorting-separation method

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Embodiment

[0022] A porphyry-type copper-molybdenum mine in Inner Mongolia has a molybdenum grade of about 0.1% and a copper grade of about 0.02% in the raw ore. Metal minerals are mainly molybdenite (mineral content 0.12%), pyrite ((mineral content 1.12%)), chalcopyrite (mineral content 0.06%), followed by hematite, magnetite, pyrrhotite , also contains trace amounts of blue chalcocite, copper blue and bornite. The main gangue minerals are quartz, feldspar, biotite, sericite and clay minerals.

[0023] Conventional copper-molybdenum mixed flotation, copper-suppressed floating molybdenum separation process: the raw ore undergoes mixed flotation after a period of ball milling, and the mixed flotation process is "one-time roughing, three-time beneficiation, and three-time sweeping" to obtain mixed coarse concentrate and For tailings 1, the flotation agents are conventional kerosene and No. 2 oil. The mixed flotation rough concentrate is carried out for separation flotation, and the mixed...

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Abstract

The invention discloses a floating magnetic combined copper-molybdenum sorting-separation method. Copper-molybdenum bulk concentrate is adopted as fed ore, copper-inhibiting molybdenum-floating flotation separation is carried out, and a foam product generated after copper-inhibiting molybdenum-floating flotation separation is subjected to copper-molybdenum re-separation with a superconductive magnetic separator with the background magnetic field strength being 3,200 kA/m to 4,800 kA/ml; an obtained non-magnetic part is a molybdenum concentrate product, and an obtained magnetic part serves as middling and is returned to be subjected to copper-inhibiting molybdenum-floating flotation separation roughing work; and an underflow product obtained after copper-inhibiting molybdenum-floating flotation separation is subjected to copper ore flotation, and copper concentrate is obtained. Collection of the copper ore is reinforced in a superconductive magnetic separation manner, the separation effect of copper and molybdenum is further improved, the copper content in later molybdenum concentrate is reduced, and then the recovery rate of molybdenum and copper is increased.

Description

technical field [0001] The invention relates to the technical field of separation and separation of copper-molybdenum ore, in particular to a method for separation and separation of copper and molybdenum combined with floating magnetism. Background technique [0002] my country is rich in molybdenum resources, accounting for about 37% of the world's total. There are few single molybdenum deposits, and most of them come from porphyry copper-molybdenum deposits. At present, most copper-molybdenum mines adopt mixed flotation-copper-molybdenum separation process. Copper-molybdenum resources have more lean ore and less rich ore, severe co-occurrence, fine particle size, molybdenite and chalcopyrite are similar in buoyancy, and it is easy to obtain copper-molybdenum mixed concentrate, but in copper-molybdenum mixed concentrate It is difficult to separate copper minerals and molybdenum minerals in concentrates, which affects the indicators of final concentrate products. According...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03D1/02B03C1/00B03B1/00B03D103/02
CPCB03B1/00B03B9/00B03C1/00B03D1/02B03D2203/02
Inventor 马仲英
Owner 江苏旌凯中科超导高技术有限公司
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