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Beneficiation method for eliminating radioaction of quartz feldspar concentrate

A beneficiation method and radioactive technology are applied in the field of mineral processing for removing the radioactivity of quartz feldspar concentrates, which can solve the problems of ineffective removal of radioactivity, unavailability, hidden dangers of regional environment, etc., so as to improve the comprehensive utilization rate of resources, purity and quality. , reducing the effect of radioactivity

Inactive Publication Date: 2019-02-01
内蒙古扎鲁特旗鲁安矿业有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the development of this strategic resource, due to the low grade of the original ore, a large amount of tailings will be produced, a considerable part of which is the enrichment of quartz feldspar, but the "three rare" resources often contain high radioactivity at the same time, resulting in This kind of quartz feldspar cannot be used due to radioactivity exceeding the standard. In addition, similar quartz feldspar enrichment will be produced in the process of uranium smelting. The long-term accumulation of such radioactive tailings will cause long-term hidden dangers to the regional environment.
[0003] At present, there are many purification methods for quartz feldspar, and the method of beneficiation and separation of quartz feldspar is also very mature, but there are few methods or related researches on the removal of radioactivity from quartz feldspar mixed concentrate, simply using water washing, acid washing, magnetic separation , flotation and other methods cannot effectively remove radioactive

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  • Beneficiation method for eliminating radioaction of quartz feldspar concentrate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The total ratio of radioactivity is 8.53×10 3 Bq / kg, internal exposure index I Ra =2.2, external exposure index I r =3.0, particle size-0.1mm accounts for 85%, and the radioactive quartz feldspar mixed concentrate with a purity of 96.30% is used as a raw material. The invention provides a mineral processing method for removing the radioactivity of the quartz feldspar concentrate, which includes the following steps:

[0030] (1) Strong magnetic separation: Grind 1kg of quartz feldspar mixed concentrate with excessive radioactivity, the particle size is -0.1mm>85%, and then mix the fine powder after grinding into pulp with a concentration of 10% for wet processing Strong magnetic separation, the strong magnetic separation includes a closed-circuit process consisting of one roughing and one sweeping. After roughing, a roughing concentrate and a roughing tailings are obtained, and the roughing tailings are subjected to a sweeping to obtain a sweeping Concentrated ore and ...

Embodiment 2

[0034] The total ratio of radioactivity is 7.78×10 3 Bq / kg, internal exposure index I Ra =1.8, external exposure index I r =2.8, particle size-0.1mm accounts for 80%, and the quartz feldspar mixed concentrate with radioactivity exceeding the standard of 94.35% is a raw material. The invention provides a kind of mineral processing method for removing the radioactivity of quartz feldspar concentrate, comprising the following steps:

[0035] (1) Strong magnetic separation: Grind 1kg of quartz feldspar mixed concentrate with excessive radioactivity, the particle size is -0.1mm>80%, and then mix the fine powder after grinding into a pulp with a concentration of 30% for wet processing Strong magnetic separation, the strong magnetic separation includes a closed-circuit process consisting of one roughing and one sweeping. After roughing, a roughing concentrate and a roughing tailings are obtained, and the roughing tailings are subjected to a sweeping to obtain a sweeping Concentrate...

Embodiment 3

[0039] Take the total ratio of radioactivity as 3.55×10 3 Bq / kg, internal exposure index I Ra =1.2, external exposure index I r =1.5, particle size-0.1mm accounts for 87%, and the quartz feldspar mixed concentrate with radioactivity exceeding the standard of 97.25% is a raw material. The invention provides a kind of mineral processing method for removing the radioactivity of quartz feldspar concentrate, comprising the following steps:

[0040] (1) Strong magnetic separation: Grind 1kg of quartz feldspar mixed concentrate with excessive radioactivity, the particle size is -0.1mm>87%, and then mix the fine powder after grinding into a pulp with a concentration of 20% for wet processing Strong magnetic separation, the strong magnetic separation includes a closed-circuit process consisting of one roughing and one sweeping. After roughing, a roughing concentrate and a roughing tailings are obtained, and the roughing tailings are subjected to a sweeping to obtain a sweeping Concen...

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Abstract

The invention belongs to the technical field of beneficiation, in particular to a beneficiation method for eliminating the radioaction of quartz feldspar concentrate. According to the beneficiation method, mixed quartz feldspar concentrate with the radioaction exceeding the standard is used as a raw material, and radioactive mineral substances in the mixed quartz feldspar concentrate are effectively removed through strong magnetic separation and two times of table se-separation, so that the radioaction of the quartz feldspar concentrate is greatly reduced, and the quartz feldspar concentrate meets the radioaction requirement for construction decoration materials; and meanwhile, the purity and quality of the quartz feldspar concentrate are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular to a mineral processing method for removing the radioactivity of quartz feldspar concentrate. Background technique [0002] On the way for my country to become a moderately developed country, it still needs the support of a large number of long-term resources. With the increasing scarcity of mineral resources, low-grade and associated resources have been listed as the main resources to be developed and utilized on a large scale, especially rare, rare earth, rare and scattered strategic resources. However, during the development of this strategic resource, due to the low grade of the original ore, a large amount of tailings will be produced, a considerable part of which is the enrichment of quartz feldspar, but the "three rare" resources often contain high radioactivity at the same time, resulting in This kind of quartz feldspar cannot be used due to radioactivity exceedi...

Claims

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Application Information

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IPC IPC(8): B03B9/00B03B9/06
CPCB03B9/00B03B9/06Y02W30/52
Inventor 李梅张栋梁高凯
Owner 内蒙古扎鲁特旗鲁安矿业有限公司
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