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Method for regulating color of cobalt blue/frame-shaped silicate hybrid pigment by metal ion doping

A framework silicate, metal ion technology, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., to improve color performance, reduce production costs, and prevent agglomeration.

Active Publication Date: 2017-08-18
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, there are no related reports on the preparation of cobalt blue hybrid pigments and the regulation of their color properties by combining frame silicate and metal ion doping

Method used

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  • Method for regulating color of cobalt blue/frame-shaped silicate hybrid pigment by metal ion doping
  • Method for regulating color of cobalt blue/frame-shaped silicate hybrid pigment by metal ion doping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 50g of quartz sand, 145.5g of cobalt nitrate and 375.1g of aluminum nitrate to 500mL of water, stir at high speed for 30min, then slowly add NaOH until the pH of the system is 10; In a type furnace, it was crystallized at 1100°C for 1 hour to obtain a blue-green hybrid pigment, sample number S1.

Embodiment 2

[0025] Add 50g of quartz sand, 116.4g of cobalt nitrate, 375.1g of aluminum nitrate and 10.1g of potassium nitrate into 500mL of water, stir at high speed for 30min, then slowly add NaOH until the pH of the system is 10; react for 1h, and the obtained solid product is centrifuged and washed After that, it was directly placed in a tube furnace and crystallized at 1000°C for 1 h to obtain a blue hybrid pigment, sample number S2.

Embodiment 3

[0027] Add 100g albite, 142.8g cobalt chloride, 450.1g aluminum nitrate and 22.2g calcium chloride to 1000mL water, stir at high speed for 30min, then slowly add NaOH until the pH of the system is 11; react for 1h, the obtained solid product is centrifuged, After washing, it was directly placed in a tube furnace, and crystallized at a high temperature of 1200 °C for 1.5 h to obtain a bright blue hybrid pigment, the sample number of which was S3.

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Abstract

The invention provides a method for regulating the color of a cobalt blue / frame-shaped silicate hybrid pigment by metal ion doping. The method comprises the steps: dispersing frame-shaped silicate, metal ions, Co (II) salt and Al (III) salt in water; adjusting the system pH value to alkaline; centrifugally washing products obtained from the reaction, then crystallizing with high temperature, and then obtaining different colors of the cobalt blue / frame-shaped silicate hybrid pigment. According to the method, by introducing different metal ions and substituting dopant ions for Co (II) in tetrahedral voids or Al (III) in octahedral voids, the color of the cobalt blue hybrid pigment can be effectively adjusted; by using the frame-shaped silicate and the different metal ions in a combined mode, the dosage of cobalt compounds is reduced in a minimum degree, and the production cost of the cobalt blue pigment is reduced; due to the synergistic effect of the frame-shaped silicate and the different metal ions, the color performance of the cobalt blue pigment is greatly enhanced, and the color system of the cobalt blue pigment is expanded; it is expected to achieve the high value utilization of non-metallic mineral resources and the widespread use of the cobalt blue pigment in related fields.

Description

technical field [0001] The invention relates to a method for regulating the color of cobalt blue hybrid pigments, in particular to a method for regulating the color of cobalt blue / frame silicate hybrid pigments by doping metal ions, which belongs to the category of nano spinel hybrid pigments Preparation technology field. Background technique [0002] Metal oxide mixed-phase pigments with spinel structure, that is, environmentally friendly color mixed-phase inorganic pigments, are environmentally friendly and non-toxic high-performance inorganic pigments produced by high-temperature solid-state reactions of various metal oxides. In the environment-friendly color mixed-phase inorganic pigments, metal ions enter the lattice of the basic crystal through thermal diffusion, forming a stable doped lattice structure during the calcination process, so this kind of pigment is also called "lattice pigment". ". Among them, cobalt blue pigment is the most famous, which plays an irrepl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/06
CPCC01P2006/62C01P2006/63C01P2006/64C09C1/40C09C3/06
Inventor 牟斌王爱勤汪琴王文波康玉茹宗莉朱永峰惠爱平
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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