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Method for preparing red hybridized pigment from red attapulgite clay

A technology of attapulgite clay and attapulgite, applied in the direction of fibrous fillers, etc., can solve the problems of high cost, complicated process, no utilization, etc., and achieve the effect of good stability, uniform particle size, and bright color

Active Publication Date: 2016-07-27
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the purification process is complex, costly, consumes water and energy, and the use of activators can also cause environmental pollution
Chinese patents CN101818000A and CN103803570A use the attapulgite whitening method to improve the color, thereby improving the whiteness and performance, but the cost is high, and the red attapulgite clay itself is not used.
However, there are no related research reports and application precedents for the preparation of red hybrid pigments from red attapulgite clay.

Method used

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  • Method for preparing red hybridized pigment from red attapulgite clay
  • Method for preparing red hybridized pigment from red attapulgite clay
  • Method for preparing red hybridized pigment from red attapulgite clay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix 10g of red attapulgite clay treated with high-pressure homogenization with 100g of ferric chloride, grind it evenly and disperse it into 800mL of water; add 0.01g of chloroacetic acid, stir well, and ultrasonicate for 10min; transfer it to a 1L hydrothermal reaction kettle, Adjust the pH to 2, react at a temperature of 150°C, and a pressure of 5MPa for 48 hours; then cool down to room temperature at a rate of 15°C / min, and the solid product is separated, washed, dried, and pulverized to obtain a red hybrid pigment (No. AR1) . See Table 1 for the L, a, and b color values ​​of the samples.

Embodiment 2

[0024] Mix 10g of ball-milled red attapulgite clay with 5g of ferric nitrate, grind it evenly and disperse it into 50mL of water; add 0.1g of peracetic acid, stir well, and ultrasonicate for 60min; transfer it into a 100mL hydrothermal reaction kettle, and adjust the pH To 1, react at a temperature of 280°C and a pressure of 2MPa for 48h; then cool down to room temperature at a rate of 15°C / min, and the solid product is separated, washed, dried, and pulverized to obtain a red hybrid pigment (code AR2). See Table 1 for the L, a, and b color values ​​of the samples.

Embodiment 3

[0026]Mix 10g of acidified red attapulgite clay with 150g of iron acetate and 50g of iron acetylacetonate, grind them evenly and disperse them into 600mL of water; add 0.1g of glycine, stir well, and ultrasonicate for 10min; transfer to a 1L hydrothermal reaction kettle , adjust the pH to 5, react at a temperature of 200°C, and a pressure of 5MPa for 24 hours, and then cool down to room temperature at a rate of 15°C / min. The solid product is separated, washed, dried, and pulverized to obtain a red hybrid pigment (code AR3 ). See Table 1 for the L, a, and b color values ​​of the samples.

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Abstract

The invention discloses a method for preparing red hybridized pigment from red attapulgite clay. The method comprises the following steps of: mixing pretreated red attapulgite clay ore with solid ferric salt, uniformly grinding, dispersing in water, adding an additive, stirring to disperse uniformly, performing ultrasonic treatment, further transferring into a hydrothermal reaction kettle for hydrothermal reaction, cooling to the room temperature, separating a solid product, washing, drying and crushing, thereby obtaining the red hybridized pigment. According to the method, the novel red hybridized pigment which takes silicon as a framework and is bright in color, good in stability and uniform in granularity can be prepared by virtue of the red of natural attapulgite clay self and crystal transfer of the ferric salt in the hydrothermal process, high-value utilization of the red ttapulgite clay resource is achieved, and red pigment with higher cost performance can be provided for multiple fields of pigment, paint, ceramic, restoration of cultural relics, coatings and the like.

Description

technical field [0001] The invention relates to a method for preparing a red hybrid pigment, in particular to a method for preparing a red hybrid pigment by using red attapulgite clay, and belongs to the technical field of deep processing of natural non-metallic minerals and preparation of nanometer materials. Background technique [0002] Attapulgite clay is a hydrous magnesium-aluminosilicate clay mineral with attapulgite as the main component. Due to its nano-rod crystal morphology and abundant nano-pore channels, it has a large specific surface area and excellent adsorption performance. In recent years, it has been widely used in the fields of composite materials, fine chemicals, functional carriers, petrochemicals and environmental protection. [0003] Attapulgite clay resources are abundant in my country. Large-scale high-quality attapulgite clay deposits were first discovered in the Jiangsu and Anhui regions. In recent years, a large number of deposits (points) have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/30C09C1/24
CPCC09C1/24C09C1/3018
Inventor 王爱勤王文波田光燕汪琴牟斌
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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