Bright blue metal ion doping cobalt blue/quartz sand hybrid pigment and preparation method thereof

A metal ion, quartz sand technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve problems such as poor acid resistance, achieve bright color, reduce usage, and excellent stability.

Active Publication Date: 2017-09-19
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, blue olivine-type cobalt orthosilicate can be prepared by high-temperature reaction using quartz and cobalt oxide as raw materials. Its cobalt content is higher than that of cobalt blue pigment, but its acid resistance is poor.
At present, there is no report on the preparation of brilliant blue cobalt blue hybrid pigments with low-grade quartz sand as the substrate

Method used

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  • Bright blue metal ion doping cobalt blue/quartz sand hybrid pigment and preparation method thereof
  • Bright blue metal ion doping cobalt blue/quartz sand hybrid pigment and preparation method thereof
  • Bright blue metal ion doping cobalt blue/quartz sand hybrid pigment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment one, Co 1-x Mg x al 2 o 4 / Preparation of quartz sand hybrid pigments (x=0, 0.1, 0.2, 0.4, 0.6 and 0.8)

[0028] Crush 10.0 g of quartz sand and disperse it in 200 mL of water under high-speed stirring, add 75.0 g of aluminum nitrate and stir to dissolve, then add cobalt nitrate and magnesium nitrate according to the stoichiometric ratio and stir to dissolve, stir to dissolve, slowly add 3M Sodium hydroxide solution until the pH of the system is about 8, continue to stir and react for 0.5h. The obtained solid product was centrifuged, washed, placed in a tube furnace, and crystallized at a high temperature of 1100 °C for 1 h to obtain a cobalt blue / quartz sand hybrid pigment doped with magnesium ions. The pigment was bright blue, but undoped The cobalt blue / quartz sand hybrid pigment is blue-green. Made Co 1-x Mg x al 2 o 4 / XRD spectrum of quartz sand (x=0.1~0.8) see figure 2 . Depend on figure 2 It can be seen that for Co 1-x Mg x al 2 o 4...

Embodiment 2

[0031] Embodiment two, Co 1-x Ba x al 2 o 4 / Preparation of quartz sand hybrid pigments (x=0.1, 0.2, 0.4, 0.6 and 0.8)

[0032] After pulverizing 10.0 g of quartz sand and dispersing it in 200 mL of water under high-speed stirring, add 48.3 g of aluminum chloride and stir to dissolve, then add cobalt sulfate and barium sulfate according to the stoichiometric ratio and stir to dissolve, then slowly add 3 M hydroxide Sodium solution until the pH of the system is about 9, and continue stirring for 1 h. The obtained solid product was centrifuged, washed, placed in a tube furnace, and crystallized at a high temperature of 1100 °C for 1.5 h to obtain a bright blue cobalt blue / quartz sand hybrid pigment doped with barium ions. co 1-x Ba x al 2 o 4 / XRD spectrum of quartz sand (x=0.1~0.8) see image 3 . Depend on image 3 found that when the dopant ion is Ba 2+ , with the increase of its doping amount, the XRD diffraction peak intensity of cobalt blue gradually weakens, a...

Embodiment 3

[0035] Embodiment three, Co 1-x Sr x al 2 o 4 / Preparation of quartz sand hybrid pigments (x=0.1, 0.2, 0.4, 0.6 and 0.8)

[0036] This example involves Co 1-x Sr x al 2 o 4 / Preparation of quartz sand hybrid pigments (x = 0.1, 0.2, 0.4, 0.6 and 0.8). After pulverizing 14.0g of quartz sand, disperse it in 200 mL of water under high-speed stirring, add 24.1g of aluminum chloride and 37.5g of aluminum bromide and stir to dissolve, then add cobalt chloride and strontium acetate according to the stoichiometric ratio and stir to dissolve, slowly add to 5M sodium hydroxide solution was added dropwise until the pH of the system was about 9, and the stirring reaction was continued. The obtained solid product was centrifuged and washed, then calcined in a tube furnace, and crystallized at 1200°C for 0.5 h to obtain a bright blue cobalt blue / quartz sand hybrid pigment doped with strontium ions. Table 5 shows different contents of Sr 2+ Doped cobalt blue / quartz sand hybrid pig...

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Abstract

The invention discloses a preparation method of a bright blue metal ion doping cobalt blue/quartz sand hybrid pigment. According to the method, quartz sand is crushed and is then stirred at a high speed to be dispersed into a water solution containing cobaltous salt, trivalent aluminum salts and doped metal ion salts; then, under the stirring condition, the system pH is regulated to 8 to 10 by a sodium hydroxide solution; the stirring is continuously performed for reaction for 0.5 to 2h; obtained solid products are subjected to centrifugation; after the washing, the materials are put into a tubular furnace; high-temperature crystallization is performed for 0.5 to 2h at 1000 to 1200 DEG C; the bright blue metal ion doping cobalt blue/quartz sand hybrid pigment is prepared. The metal ion doping is utilized; the color performance of the cobalt blue/quartz sand hybrid pigment can be obviously improved; the obtained hybrid pigment has bright and beautiful color and luster; excellent acid and alkali resistant and ultraviolet light resistant performance is realized; the application of the cobalt blue pigment is expanded. In addition, through the introduction of low-grade quartz sand and metal ions, the consumption of cobalt compounds and the production cost of the cobalt blue pigments can be reduced.

Description

technical field [0001] The invention relates to a method for preparing a bright blue cobalt blue hybrid pigment, especially a method for preparing a bright blue cobalt blue hybrid pigment by using low-grade quartz sand as a base material and doping with metal ions, which belongs to nano-tip The technical field of preparation of spar-type hybrid pigments. Background technique [0002] Cobalt blue is a spinel-type high-performance, environmentally friendly and non-toxic inorganic pigment, which can be used for coloring high-temperature-resistant coatings, ceramics, glass and high-temperature-resistant engineering plastics. However, due to the high preparation cost, the application field is severely limited. In recent years, base-type cobalt blue inorganic hybrid pigments have become a hot spot in the field of pigment research (CN102796404A, a method for coating inorganic nano-films on mica titanium to prepare colored composite materials; CN105199435A, a cobalt blue / clay miner...

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 牟斌王爱勤文立新汪琴王文波李华明朱永峰张安杰付燕
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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