Method for purifying and processing attapulgite clay mineral

A technology of attapulgite clay and a processing method, applied in chemical instruments and methods, silicon compounds, inorganic chemistry, etc., can solve the problems of long production operation time, low production efficiency and high cost, and achieve stable product quality and high production efficiency. , the effect of low production cost
CN101214968AInactive Publication Date: 2008-07-09HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2008-07-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a purifying and processing method of attapulgite clay minerals, which belongs to the technical field of the wet separating technique of minerals. The specific steps comprise utilizing spiral classifier for primary purification, utilizing cyclone classifier for secondary purification, employing gravity separation equipment for three-stage purification, concentration, drying and disintegration, thereby preparing ultrafine powders of the purified attapulgite clay minerals with the average particle size of 0.93-2.0 micron, and particle size of the largest particle is 3.5-5.0 micron. The method employs spiral classifier to remove the partly impure minerals with bigger particles in raw ores in advance, reinforcing the dispersion effect and the difference of suspension property of the attapulgites and impure minerals by means of surfactants, increasing separation factor, utilizing gravity separation equipment to separate the impure minerals and the attapulgite clay minerals efficiently, thereby overcoming the shortcomings that the prior art is difficult to achieve industrial production and obtain qualified purification products.
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Description

technical field

[0001] The technical solution of the invention relates to the technical field of wet separation of minerals, in particular to the purification and processing method of attapulgite clay minerals. Background technique

[0002] Attapulgite, also known as palygorskite, known as "universal clay", is a sepiolite clay mineral, widely used in oil drilling, metallurgy, chemical industry, building materials, printing and dyeing, medicine, oil decolorization, pet breeding and animal husbandry and other industries with high economic value. Although the attapulgite clay mineral is one of the superior clay mineral resources in my country, the overall grade of its deposits is low, and the reserves of high-grade ores that can directly meet large-scale industrial utilization are limited. The ore grade, structure type and impurity types of attapulgite-containing clay minerals are also very different, which makes the performance of the product unstable and difficult to meet the...

Claims

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