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A kind of beneficiation inhibitor and the purification method of molybdenum rough concentrate

A purification method and inhibitor technology, applied in flotation, solid separation, etc., can solve the problems of phosphonox being highly toxic and application restrictions, and achieve strong inhibitory effect, reduce the pressure of lead reduction, and simple process

Active Publication Date: 2021-12-31
HUNAN RES INST FOR NONFERROUS METALS
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  • 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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  • A kind of beneficiation inhibitor and the purification method of molybdenum rough concentrate
  • A kind of beneficiation inhibitor and the 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 mineral processing inhibitor, which is prepared from thioglycolic acid, sodium silicate and glucuronic acid as raw materials, and the weight ratio of the three is 50-100:1000-1200:1-2. The invention also discloses A method for purifying rough molybdenum concentrate, including gravity separation, regrinding, rough separation, selection, and sweep selection. The pre-reelection operation of the present invention can remove a part of lead minerals, reduce the subsequent lead reduction pressure, and the inhibitor used is glucose. The strong hydrophilicity of uronic acid results in strong inhibition of galena. The addition of thioglycolic acid further ensures the inhibition of copper and sulfur. It can effectively disperse the slurry when combined with sodium silicate. The mineral has a strong inhibitory effect, which can effectively reduce the impurity content in molybdenum concentrate.

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 Patents(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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