Beneficiation inhibitor and purification method of molybdenum rough concentrate

A purification method and inhibitor technology, applied in flotation, solid separation, etc., can solve the problems of application limitation, phosphoknox is highly toxic, etc., achieve strong inhibition, reduce impurity content, and reduce the pressure of subsequent lead reduction Effect

Active Publication Date: 2020-07-31
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the sodium sulfide method and the phosphoknox method are widely used, which have a good inhibitory effect on lead and copper. However, with the increasingly stringent environmental requirements and the highly toxic phosphoknox method, the application is obviously limited.

Method used

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  • Beneficiation inhibitor and purification method of molybdenum rough concentrate
  • Beneficiation inhibitor and purification method of molybdenum rough concentrate

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Embodiment 1

[0030] The raw material is a molybdenum rough concentrate in Heilongjiang, which contains 10.25% molybdenum, 5.12% copper, and 2.13% lead. It also contains a certain amount of pyrite and gangues such as quartz, chalcedony and mica. Coarse concentrate weight is 100 grams.

[0031] The inhibitor is prepared from thioglycolic acid, sodium silicate and glucuronic acid as raw materials, and the weight ratio of the three is 40:500:1. Dissolve the three in water according to this ratio to make an aqueous solution with a weight concentration of 5%.

[0032] Such as figure 1 As shown, the present embodiment provides a method for purifying molybdenum rough concentrate, which specifically includes the following steps:

[0033] (1) Gravity separation: Use a fine-grained shaking table to carry out shaking table gravity separation of molybdenum coarse concentrate to obtain gravity separation concentrate and gravity separation tailings products mainly composed of lead impurities; The shak...

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Abstract

The invention discloses a beneficiation inhibitor that is prepared from mercaptoacetic acid, sodium silicate and glucuronic acid as raw materials, wherein the weight ratio of the three is (50-100): 1000-1200: 1-2. The invention further discloses a purification method of the molybdenum rough concentrate. The method comprises the steps of gravity separation, regrinding, rough separation, fine separation and scavenging. According to the invention, a part of lead minerals can be removed through pre-gravity separation operation, thus reducing subsequent lead reduction pressure; the galena is strongly inhibited due to strong hydrophilicity of glucuronic acid in the adopted inhibitor, inhibition of copper and sulfur is further ensured by adding mercaptoacetic acid, the sodium silicate is matched,so ore pulp can be effectively dispersed, a strong inhibition effect on lead copper and gangue minerals in the molybdenum rough concentrate is achieved, and the impurity content in the molybdenum concentrate can be effectively reduced.

Description

technical field [0001] The invention relates to the field of mineral processing, in particular to a mineral processing inhibitor and a method for purifying molybdenum rough concentrate. Background technique [0002] Molybdenum is a refractory rare metal with a small expansion coefficient, good high temperature resistance, thermal conductivity, electrical conductivity, lubricity, plasticity and chemical stability and many other excellent properties. It is widely used in the iron and steel industry, non-ferrous industry, chemical industry fields of industry and agriculture. With the development of science and technology, the demand for molybdenum is increasing, and it is an irreplaceable strategic resource in the national economy. Whether the resource can be sustained, sufficient and stable plays an important role in the sustainable development of the country. [0003] Molybdenum is one of the six dominant metal resources in my country. The proven reserves of molybdenum rank ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D1/02B03B9/00B03D101/06B03D103/02
CPCB03D1/018B03D1/02B03B9/00B03D2201/06B03D2203/02
Inventor 董艳红陈代雄杨建文肖骏胡波曾惠明朱雅卓谭超
Owner HUNAN RES INST FOR NONFERROUS METALS
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