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Method for separating and preparing quartz sand concentrate from wind-laid sand in desert

A technology of desert aeolian sand and quartz sand is applied in the field of industrial utilization of desert aeolian sand, which can solve the problems of large difference in separation effect between feldspar and quartz, and achieve the effect of reducing production water consumption and saving production cost.

Active Publication Date: 2010-10-27
CHANGSHA RES INST OF MINING & METALLURGY +1
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  • Abstract
  • Description
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Problems solved by technology

The fluorine-free and acid-free method is to create a unique high-concentration pulp flotation environment through the reasonable deployment of anion and cation collectors under neutral or alkaline conditions, and preferentially float impurity minerals, but the separation effect of feldspar and quartz big different

Method used

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  • Method for separating and preparing quartz sand concentrate from wind-laid sand in desert
  • Method for separating and preparing quartz sand concentrate from wind-laid sand in desert
  • Method for separating and preparing quartz sand concentrate from wind-laid sand in desert

Examples

Experimental program
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Embodiment

[0034] The Mu Us Desert is located in the intersection area of ​​Inner Mongolia, Shaanxi and Ningxia. The desert covers an area of ​​more than 30,000 square kilometers and is one of the eight major deserts in my country. In this embodiment, the aeolian sand of the Mu Us Desert is used as raw material, by using figure 1 Shown beneficiation method of the present invention prepares and produces the quartz concentrate product (Fe 2 o 3 Content≤0.35%, and Al 2 o 3 content≤4.0%), the specific preparation method and process are as follows:

[0035] 1. Raw ore sample analysis

[0036] The desert aeolian sand raw ore sample selected in this example is in the shape of fine sand, and the particle size of the sand is mostly below 0.5 mm, which is relatively uniform; the overall color is earthy yellow to the naked eye, and a small amount of black particles can be seen in it.

[0037] 1.1 Chemical composition analysis of raw ore samples

[0038] The results of multi-element chemical c...

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Abstract

The invention belongs to an industrial utilization method for wind-laid sand in desert, and discloses a method for separating and preparing quartz sand concentrate from the wind-laid sand in desert. The method comprises an early-stage deironing process and a later-stage quartz separation process, wherein the early-stage deironing process comprises the following steps of: performing dry magnetic separation on the wind-laid sand in desert; performing gravity separation on the concentration after the dry magnetic separation; performing strong scrubbing and classification and desliming on the concentrate after the gravity separation; and performing wet magnetic separation; and the concentrate after the deironing is subjected to the later-stage quartz separation process to form the quartz sand concentrate product. The process saves water, reduces consumption, reduces cost, and can produce high-quality quartz sand concentrate by fully utilizing the wind-laid sand resources.

Description

technical field [0001] The invention relates to an industrial utilization method of desert aeolian sand, in particular to a method for preparing quartz concentrate by utilizing desert aeolian sand. Background technique [0002] In recent years, the global desertification area is expanding at a rate of more than 60,000 square kilometers per year, directly threatening the living environment of human beings. According to authoritative reports, Northwest China is advancing towards desertification at an astonishing rate of 2,000 square kilometers per year, causing economic losses of more than 50 billion yuan to my country every year. What is even more worrying is that the ecological environment here has been seriously damaged. . [0003] Desert aeolian sand is recognized as waste sand, disaster sand, and disaster sand, and few people study and utilize it. Over the years, humans have mainly planted trees and grass on the surface of the desert to control the aeolian sand in the de...

Claims

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Application Information

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IPC IPC(8): C01B33/12B03B7/00
Inventor 李小静姚智纯周岳远姚杰军刘根喜曹传辉
Owner CHANGSHA RES INST OF MINING & METALLURGY
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