Hydrothermal method for preparing creamy white attapulgite

A technology of attapulgite and attapulgite clay, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of protein denaturation, vascular toxicity, liver and kidney toxicity, etc. The effect of efficiency

Active Publication Date: 2015-01-07
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Studies have shown that dimethyl sulfoxide has serious toxic effects, interacts with protein hydrop

Method used

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  • Hydrothermal method for preparing creamy white attapulgite
  • Hydrothermal method for preparing creamy white attapulgite
  • Hydrothermal method for preparing creamy white attapulgite

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] Under stirring conditions, disperse 0.6g sulfuric acid and 0.3g sodium sulfide in 600 mL of water, add 8g brick red attapulgite clay and stir for 1 hour to disperse evenly, then place in a 1 L autoclave and react at a temperature of 180 ℃ After 48 hours, the temperature was naturally cooled to room temperature, centrifuged and washed with tap water, dried, crushed, and passed through a 200-mesh sieve to obtain reddish attapulgite. The attapulgite has an adsorption capacity of 105 mg / g for heavy metal copper ions.

Example Embodiment

[0022] Example 2

[0023] Under stirring conditions, disperse 1.5g glycine and 0.5g zinc sulfide in 600 mL of water, add 10g of brick red attapulgite clay and stir for 1 hour to disperse evenly, then place in a 1 L autoclave at 220 ℃ React for 48 h, cool down to room temperature naturally, centrifuge, wash with tap water, dry, and crush. Pass a 200-mesh sieve to obtain off-white attapulgite. The attapulgite has an adsorption capacity of 108 mg / g for heavy metal copper ions.

Example Embodiment

[0024] Example 3

[0025] Under stirring conditions, disperse 1.5g of acetic acid and 0.8g of ammonium sulfide in 600 mL of water, add 15g of brick red attapulgite clay and stir for 1 hour to disperse evenly, then place in a 1 L autoclave and react at a temperature of 200 ℃ After 72 hours, the temperature is naturally cooled to room temperature, centrifuged, washed with tap water, dried, crushed, and passed through a 200-mesh sieve to obtain off-white attapulgite. The attapulgite has an adsorption capacity of 112 mg / g for heavy metal copper ions.

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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...

Claims

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Application Information

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IPC IPC(8): C01B33/40
Inventor 王爱勤张志芳王文波牟斌康玉茹汪琴
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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