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Microbial deferrization process for quartz sand

A quartz sand and microorganism technology, applied in the directions of silica and silica, can solve problems such as unsatisfactory, and achieve the effects of increasing hydrophilicity, shortening leaching time, and facilitating contact

Inactive Publication Date: 2014-03-26
成都兴能新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the magnetic separation process in the prior art can only remove the magnetic minerals including the intergrowth particles, such as impurity minerals such as hematite, limonite, biotite, ilmenite, pyrite and garnet, However, the removal effect of thin film iron or impregnated iron on the surface of quartz sand particles is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A microbial iron removal process for quartz sand, characterized in that it comprises the following steps:

[0027] a. Crush the quartz sand ore to a particle size of 0.4-0.1 mm, then add water to prepare a pulp A containing 10% to 20% of the mass fraction of quartz sand particles;

[0028] b. add 0.005 ~ 0.01% surfactant tridecyl isomer alcohol ether of pulp A quality in described pulp A, be mixed with pulp B;

[0029] c. adding Aspergillus niger bacterial liquid to the described ore pulp B to obtain mixture A;

[0030] d. The operation of stirring and leaching the mixture A: continuously adding the mixed gas of oxygen and carbon dioxide, and stirring at the same time;

[0031] e. Wash the quartz sand after the leaching and stirring with water and separate the solid and liquid to obtain the iron-free quartz sand.

Embodiment 2

[0033] A microbial iron removal process for quartz sand, characterized in that it comprises the following steps:

[0034] a. Crush the quartz sand ore to a particle size of 0.4-0.1mm, then add water to make slurry A;

[0035] b. add 0.005 ~ 0.01% surfactant polyoxyethylene ether of pulp A quality to described pulp A, be mixed with pulp B;

[0036] c. Add the Aspergillus niger bacterial liquid to the ore pulp B to obtain a mixture A: the concentration of the Aspergillus niger bacterial liquid is OD=0.4~0.6; the mixture A contains 0.05~0.1 The aspergillus niger bacterium liquid of % mass fraction;

[0037] d. The operation of stirring and leaching the mixture A: continuously adding the mixed gas of oxygen and carbon dioxide, and stirring at the same time;

[0038] e. Wash the quartz sand after the leaching and stirring with water and separate the solid and liquid to obtain the iron-free quartz sand.

Embodiment 3

[0040] A microbial iron removal process for quartz sand, characterized in that it comprises the following steps:

[0041] a. Crush the quartz sand ore to a particle size of 0.4-0.1mm, then add water to prepare pulp A, and prepare pulp A containing quartz sand particles with a mass fraction of 10% to 20%;

[0042] b. add 0.005 ~ 0.01% surfactant sodium fatty acid of pulp A quality in described pulp A, be mixed with pulp B;

[0043] c. Add Aspergillus niger bacteria liquid to the ore pulp B to obtain mixture A: the concentration of the added Aspergillus niger bacteria liquid is OD=0.4~0.6; the mixture A contains 0.05~0.1% The aspergillus niger bacterium liquid of mass fraction;

[0044] d. The operation of stirring and leaching the mixture A: continuously adding a mixed gas of oxygen and carbon dioxide (according to the volume ratio, oxygen: carbon dioxide = 4:1) to the mixture A, and stirring at the same time;

[0045] e. Wash the quartz sand after the leaching an...

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PUM

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Abstract

The invention provides a microbial deferrization process for quartz sand, and belongs to the field of mineral separation processes for quartz sand. According to the invention, the leaching-out deferrization on the shattered quartz sand is performed by utilizing aspergillus niger rhzomorph, all leaching-out parameters are optimized, and film ferrum or impregnated ferrum on the surfaces of quartz sand particles can be removed, as a result, the removal ratio of Fe2O3 is 76 percent above, and the grade of the Fe2O3 in the refined quartz sand reaches a low level of 0.006 percent.

Description

technical field [0001] The invention belongs to the beneficiation process of quartz sand, in particular to a microbial iron removal process of quartz sand. Background technique [0002] Quartz sand is a non-metallic mineral. It is a hard, wear-resistant, and chemically stable silicate mineral. Its main mineral component is SiO2. The color of quartz sand is milky white, or colorless and translucent, and its hardness is 7. , Quartz sand is an important industrial mineral raw material, non-chemical dangerous goods, widely used in glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical flux, [0003] Gold, construction, chemical, plastic, rubber, abrasive and other industries. [0004] With the advancement of science and technology, high-tech industries such as optical power supply, electronics industry, optical communication, SiO2 thin film materials, large-scale and ultra-large-scale integrated circuits, lasers, aerospace, military industry a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12
Inventor 王维利范末峰
Owner 成都兴能新材料股份有限公司