Beneficiation method for high armangite

A technology for high arsenic manganese ore and manganese ore, which is applied in chemical instruments and methods, wet separation, improvement of process efficiency, etc., can solve the problems that affect the development and utilization of manganese ore resources, and no published documents on beneficiation of high arsenic manganese ore have been found. The effect of good economic benefits, saving production water and simple process flow

Inactive Publication Date: 2011-09-07
广西壮族自治区地质矿产测试研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the arsenic content in the manganese ore concentrate cannot be effectively reduced, it will directly affect the development and utilization of the manganese ore resources
[0003] After searching, we did not find any public literature on beneficiation of high arsenic manganese ore

Method used

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  • Beneficiation method for high armangite
  • Beneficiation method for high armangite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The Algerian high-arsenic manganese ore containing 37.09% by weight of manganese and 4.92% by weight of arsenic is subjected to dry strong magnetic separation under the technological conditions of a magnetic field strength of 13,000 Oersted, and the raw manganese ore selected is then ground into After the particle size of 60% is -0.074mm, under the technological condition that the magnetic field strength is 9000 Oersted, carry out wet strong magnetic separation, and then use the sulfuric acid with the concentration of 98% of the ore in an amount of 360Kg / t and the H of the ore in an amount of 1Kg / t 2 o 2 , carry out the wet chemical leaching reaction, the reaction time is 3 hours, the leachate in the upper layer of the reaction liquid precipitation is reused, the manganese slag is treated with calcium salt to achieve discharge, the reaction liquid precipitate is neutralized with lime milk solution, and the pH value is controlled at 7 to obtain manganese Concentrate prod...

Embodiment 2

[0031] The high-arsenic manganese ore containing 36.27% by weight of manganese and 5.03% by weight of arsenic is subjected to dry strong magnetic separation under the technological conditions of a magnetic field strength of 12000 Oersted. After the particle size of % is -0.074mm, under the process condition that the magnetic field intensity is 8500 Oersted, carry out wet strong magnetic separation, and then use the sulfuric acid with the concentration of 98% of the ore in the amount of 355Kg / t and the concentration of the ore in the amount of 0.9Kg / t h 2 o 2 , carry out the wet chemical leaching reaction, the reaction time is 2.5 hours, the leaching solution of the upper layer of the reaction liquid precipitation is reused, the manganese slag is treated with calcium salt to achieve discharge, and the reaction liquid precipitate is neutralized with lime milk solution, and the pH value is controlled at 6.6 to obtain manganese Concentrate products.

[0032] In this example, a m...

Embodiment 3

[0034] The Algerian high-arsenic manganese ore containing 38.15% by weight of manganese and 5.11% by weight of arsenic is subjected to dry strong magnetic separation under the technological conditions of a magnetic field strength of 13600 Oersted, and the raw manganese ore selected is then ground into After 60% of the particle size is -0.074mm, use a magnetic field strength of 9500 Oersted to carry out wet strong magnetic separation, and then use 365Kg / t of sulfuric acid with an ore concentration of 98% and 1.1Kg / t of ore H 2 o 2 , carry out the wet chemical leaching reaction, the reaction time is 3.5 hours, the leaching solution of the upper layer of the reaction liquid precipitation is reused, the manganese slag is treated with calcium salt to achieve discharge, and the reaction liquid precipitate is neutralized with lime milk solution, and the pH value is controlled at 7.6 to obtain manganese Concentrate products.

[0035] In this example, a manganese concentrate product ...

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Abstract

The invention discloses a beneficiation method for high armangite. The method comprises the following steps of: performing dry-type strong magnetic separation with the magnetic field intensity of 12,000 to 14,000 oersted on the high armangite which comprises 35 to 39 weight percent of manganese and 4 to 6 weight percent of arsenic and serves as a raw material; finely grinding until 60 weight percent of high armangite has the particle size of -0.074 mm by using a ball mill; performing wet-type strong magnetic separation with the magnetic field intensity of 8,000 to 10,000 oersted; performing awet-type chemical extraction reaction by using acid for 2 to 4 hours; and performing neutralization treatment on precipitates by using alkali liquor to obtain a manganese concentrate product which comprises more than or equal to 53.81 weight percent of manganese and less than or equal to 0.35 weight percent of arsenic, wherein the total recovery rate of the manganese is more than or equal to 80 percent. The technology is simple in process flows, and the method is applied to the treatment of minerals similar to tilasite CaMg (F / AsO4); operation wastewater is returned to ore grinding operation for recycling, so that water used during production is saved; leaching residues are treated by calcium salt to meet the emission standard, so that the method is environment-friendly; and the method isrelatively high in economic benefits, social benefits and ecological benefits.

Description

technical field [0001] The invention belongs to the technical field of manganese ore beneficiation, and relates to a method for beneficiating high-arsenic manganese silicate ore containing fluorine-arsenic-magnesite. Background technique [0002] Algeria (Guettara) manganese ore is a high-arsenic manganese ore, which contains 35-39% manganese and 4-6% arsenic. It has two very special features: First, it is not a common manganese oxide or manganese carbonate ore in China, but a manganese silicate Mn 6 (O 8 / SiO 4 ) ore; the second is that it contains extremely high arsenic minerals. This arsenic mineral is not a common arsenic sulfide mineral in China, such as arsenopyrite, realgar, orpiment, etc., but a rare fluoroarsenite CaMg ( F / AsO 4 ), and the distribution of arsenic minerals is extremely fine. If the arsenic content in the manganese ore concentrate cannot be effectively reduced, the development and utilization of the manganese ore resources will be directly affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/00C22B3/06C22B47/00C22B30/04B03B7/00
CPCY02P10/20
Inventor 陈剑锋吕俊程阳国运杜杰陈安元赵晶
Owner 广西壮族自治区地质矿产测试研究中心
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