Hydrothermal method for preparing creamy white attapulgite

Abstract

The invention discloses a method for converting brick-red attapulgite into creamy white attapulgite, belonging to the technical fields of deep processing and preparation of nanometer silicate materials. The method comprises the steps of uniformly dispersing brick-red attapulgite clay into a solution containing acid and sulfur compounds according to the solid-to-liquid mass ratio of 1:30 to 1:100; reacting at the temperature of 180-250 DEG C for 12-96 hours; and naturally cooling to the room temperature, centrifuging, washing, drying and crushing to obtain the creamy white attapulgite. According to the method, ferric iron in an attapulgite framework is reduced through the interaction between sulfur in the sulfur compounds and attapulgite in a hydrothermal environment, so that the color and luster of the brick-red attapulgite are converted; and meanwhile, the zeta potential of the attapulgite is improved through the hydrothermal process, so that the adsorption performance of the attapulgite is improved, and a novel approach for the high-value utilization of the brick-red attapulgite clay is opened.

Description

Technical field [0001] The present invention involves a method of transforming a brick -red bumps into beige bumps, especially a method that uses a reducing effect using sulfur -containing compounds to obtain rice white bumps in water and heat environment.Deep processing and preparation of materials. Background technique [0002] Bumpbuilding Stone clay (also known as slopes or slopes) is a natural nano -grade water -rich magnesium -rich and aluminum siliconic acid clay mineral with uneven rods as the main ingredient.The tunnel structure is used in many areas such as oiling off the color of oil, molecular sieve, composite materials, functional carriers, and environmental protection. [0003] my country first found large high -quality high -quality bumpy stone clay mines in Jiangsu and Anhui provinces. Later, a number of minerals (points) were successively found in Gansu, Sichuan, Guizhou, Henan, Shanxi, Inner Mongolia, Hubei, Hebei, and Yunnan. Resource prospects are very conside...

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Problems solved by technology

Studies have shown that dimethyl sulfoxide has serious toxic effects, interacts with protein hydrophobic groups, can lead to protein denaturation, has vascular toxicity and liver and kidney toxicity

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