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Method of recovering fine-grained antimony oxide ore

An antimony oxide ore, antimony oxide technology, applied in chemical instruments and methods, wet separation, solid separation and other directions, can solve the problems of low recovery rate, waste of resources, difficult to recover, etc., and achieve significant economic benefits and environmental friendliness. Effect

Inactive Publication Date: 2018-08-17
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional fine-grained antimony oxide ore (antimonite, yellow antimony and yellow antimony ore) is generally recovered by shaking table, and the recovery rate is very low, resulting in a serious waste of resources
However, fine-grained antimonite, yellow antimony and yellow antimony ore are easy to be crushed due to their low hardness, and they are easy to muddy when exposed to water. In addition, their zero-electric point is almost the same as that of quartz, that is, the flotation behavior of the two is very similar. , and antimonite, yellow antimony and yellow antimonite minerals can be hydrolyzed in water to form a trace amount of hydrophilic surface compound HSbO 2 or HSbO 3 , making it difficult to recover directly by flotation

Method used

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  • Method of recovering fine-grained antimony oxide ore
  • Method of recovering fine-grained antimony oxide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] An antimony oxide ore containing 1.21 wt % of Sb, the antimony minerals mainly include pyrite, antimony and yellow antimony, and the gangue mainly includes calcite, limestone, barite, gypsum, mica and the like. The antimony oxide ore is mixed with water to obtain a mixed slurry with a mass concentration of 68wt%, which is sent to a ball mill for ball milling to obtain a fine-grained antimony oxide ore slurry with a particle size of not more than 0.074mm and a proportion of 50-90%. Centrifugal concentrator carries out gravity separation of fine-grained antimony oxide ore pulp to obtain heavy mineral pulp and tailings. Diiodomethane is put into the obtained heavy mineral pulp for heavy liquid separation to obtain antimony coarse concentrate and flotation ore. The antimony rough concentrate was removed under the magnetic field of 1.3T to remove the magnetic minerals, and the antimony concentrate was obtained with a grade of 24.11%, and the recovery rate was 42.01%. Compared...

Embodiment 2

[0050] An antimony oxide ore containing Sb 3.22wt%, the antimony mineral is mainly pyrite, the gangue mainly includes calcite and quartz, and a small amount of clay ore and iron minerals. The antimony oxide ore is mixed with water to obtain a mixed slurry with a mass concentration of 65wt%, and it is sent to a ball mill for ball milling to obtain a fine-grained antimony oxide ore slurry with a particle size not greater than 0.074mm and accounting for 50-90%, and then using Centrifugal concentrator carries out gravity separation of fine-grained antimony oxide ore pulp to obtain heavy mineral pulp and tailings. Diiodomethane is put into the obtained heavy mineral pulp for heavy liquid separation to obtain antimony coarse concentrate and flotation ore. The antimony coarse concentrate was removed under the magnetic field of 1.2T to remove the magnetic minerals, and the antimony concentrate with a grade of 28.17% was obtained, and the recovery rate was 40.05%. Compared with the 10% ...

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Abstract

The invention discloses a method of recovering fine-grained antimony oxide ore. The method comprises the steps that (1) the antimony oxide ore and water are mixed so that mixed ore pulp can be obtained; (2) ball milling is conducted on the mixed ore pulp so that fine-grained antimony oxide ore pulp can be obtained; (3) gravity separation is conducted on the fine-grained antimony oxide ore pulp sothat heavy mineral pulp and tailings can be obtained; (4) the heavy mineral pulp and heavy liquid are mixed to be separated so that antimony rough concentrate and floatation ore can be obtained; and (5) magnetic separation is conducted on the antimony rough concentrate so that antimony concentrate and magnetic separation mineral can be obtained. By the adoption of the method, the antimony concentrate with the grade larger than 24% can be obtained, the recovery rate of antimony is larger than 40%, and compared with the situation that in the prior art, the recovery rate is smaller than or equalto 10%, the method has the advantage of achieving the remarkable economic benefit.

Description

technical field [0001] The invention belongs to the field of antimony oxide ore treatment, and in particular, the invention relates to a method for recovering fine-grained antimony oxide ore. Background technique [0002] Over the years, domestic and foreign scientific researchers have carried out a lot of research on the flotation recovery of fine-grained antimony, yellow antimony and yellow antimony, but have not found an effective method for beneficiation. The traditional fine-grained antimony oxide ore (antimony, yellow antimony and yellow antimony) is generally recovered by shaking table, and the recovery rate is very low, resulting in a serious waste of resources. The fine-grained antimony, yellow antimony and yellow antimony are easy to be crushed by grinding due to their low hardness, and easy to sludge when exposed to water. In addition, their zero electric point is almost the same as that of quartz, that is, the flotation behavior of the two is very similar. , and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/00
CPCB03B7/00B03B9/00
Inventor 于传兵王传龙刘志国宋磊郭素红
Owner CHINA ENFI ENGINEERING CORPORATION