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Method for preparing cobalt blue hybrid pigment by using quartz removed in natural mineral purification process

A technology of natural minerals and quartz, which is applied in the field of preparation of cobalt blue hybrid pigments, can solve problems such as easy generation of waste water, achieve the effects of improving reactivity, low temperature, and improving comprehensive utilization

Active Publication Date: 2021-12-31
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

However, the requirements for the reagents and raw materials involved are relatively high, and its co-precipitation preparation technology is prone to waste water in the preparation and subsequent washing processes

Method used

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  • Method for preparing cobalt blue hybrid pigment by using quartz removed in natural mineral purification process
  • Method for preparing cobalt blue hybrid pigment by using quartz removed in natural mineral purification process
  • Method for preparing cobalt blue hybrid pigment by using quartz removed in natural mineral purification process

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Effect test

Embodiment 1

[0025] Mix 0.582 g of cobalt nitrate, 1.500 g of aluminum nitrate, 0.212 g of quartz and 0.750 g of heavy calcium carbonate, put them into a 50 mL zirconia grinding jar, add 30 g of zirconia balls with a diameter of 2 mm, and the ball-to-material ratio is 10; put it in a mill and grind it at 400rpm for 180 min to obtain a precursor; then calcinate the precursor at 1000ºC for 60 min to obtain a cobalt blue / quartz hybrid pigment, marked as H-1, which L * , a * , b * See Table 1 for color parameters.

Embodiment 2

[0027] 0.482 g Co 3 o 4 , 1.500 g of aluminum nitrate, 0.283 g of quartz and 0.700 g of calcite are mixed, put into a 50 mL zirconia grinding jar, add 60 g of zirconia balls with a diameter of 2 mm, and the ball-to-material ratio is 20; The precursor was prepared by grinding at 500 rpm for 120 min; then the precursor was calcined at 900ºC for 120 min to obtain a cobalt blue / quartz hybrid pigment, labeled as H-2, which L * , a * , b * See Table 1 for color parameters.

Embodiment 3

[0029] 0.315 g Co 2 o 3 , 0.408 g of aluminum nitrate, 0.141 g of quartz and 0.445 g of calcium hydroxide are mixed, put into a 50 mL zirconia grinding tank, add 50 g of zirconia balls with a diameter of 2 mm, and the ball-to-material ratio is 40; The precursor was prepared by grinding at 500 rpm for 240 min; then the precursor was calcined at 1000ºC for 120 min to obtain a cobalt blue / quartz hybrid pigment, labeled as H-3, which L * , a * , b * See Table 1 for color parameters.

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Abstract

The invention discloses a method for preparing cobalt blue hybrid pigments by using quartz removed in the purification process of natural minerals. The quartz produced in the wet purification process of natural minerals is mixed with cobalt sources, aluminum sources and calcium sources and then put into the planet Grinding in the grinding mill, the reactive precursor is obtained through mechanochemical coordination with calcium ion doping, and then the precursor is directly placed in the muffle furnace for calcination to obtain a high-performance cobalt blue / quartz hybrid with adjustable chromaticity. chemical pigments. The present invention combines quartz and calcium ions from different sources in the process of mineral processing to successfully prepare cobalt blue / quartz hybrid pigments with different blue color systems through mechanochemical method. It can directly meet the individual needs of cobalt blue color in different fields; at the same time, the introduction of quartz and calcium sources improves the agglomeration of cobalt blue nanoparticles, greatly reduces the cost of cobalt blue pigment preparation, and improves the comprehensiveness of mineral resources in the process of mineral processing utilization rate.

Description

technical field [0001] The invention relates to a preparation method of a cobalt blue hybrid pigment, in particular to a method for preparing a cobalt blue hybrid pigment by using quartz removed in the purification process of natural minerals, which belongs to the preparation of nano spinel hybrid pigment and non-metallic mineral solid Waste resource utilization technology field. Background technique [0002] As we all know, natural minerals are often accompanied by impurity minerals such as quartz, feldspar, mica, carbonate cuttings, etc., especially the high content of quartz (up to 40%). In order to realize the high value utilization of natural minerals, it must be purified. Compared with the traditional dry purification process, wet purification can ensure key indicators such as product purity and batch stability. At the same time, in the wet purification process of natural minerals, the separation and removal of quartz is very important to the properties of subsequent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00
CPCC09C1/0081C01P2006/62C01P2006/63C01P2006/64
Inventor 王爱勤牟斌杨浩王晓雯汪琴许江康玉茹
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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