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Preparation method of novel nano tungsten oxide dispersion liquid

A technology of nano-tungsten oxide and dispersion liquid, which is applied in the direction of tungsten oxide/tungsten hydroxide, nanotechnology, etc., can solve the problems of not obvious advantages in particle size, poor liquid uniformity, poor dispersion effect, etc., and achieve good transparency and uniform particle size , the effect of easy operation

Pending Publication Date: 2022-02-08
宣城市晶纳环保科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional process, it is necessary to mix the nano-tungsten trioxide powder and other materials evenly, the powder is easy to agglomerate, the dispersion effect is poor, the particle size advantage after agglomeration is not obvious, and the liquid uniformity is poor

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0017] A method for preparing a novel nano-tungsten oxide dispersion, comprising the following steps:

[0018] Precursor powder preparation: Weigh 50kg of nano-tungsten oxide powder, which is nano-tungsten oxide powder produced by Xuancheng Jingrui New Material Co., Ltd.;

[0019] Precursor liquid preparation: weigh 450kg of deionized water;

[0020] Preparation of nano-tungsten oxide liquid: Put the precursor liquid into the mixing tank, turn on the stirring, add the precursor powder into the mixing tank through vacuum feeding, the adding speed is 2-5kg / min, add carboxylate, multi-component Alcohols and new synthetic dispersants total 2kg, heat up to 40°C at a rate of 2-5°C / min, keep stirring for 2 hours, cool down to room temperature for later use;

[0021] Preparation of nano-tungsten oxide dispersion liquid: Bead mill the nano-tungsten oxide liquid through bead milling equipment, feed materials while bead milling, bead mill until liquid particle size D50=0.05-0.08μm, D100...

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Abstract

The invention discloses a preparation method of novel nano tungsten oxide dispersion liquid, which comprises the steps of: putting precursor liquid deionized water into a stirring cylinder, starting stirring, adding precursor powder nano tungsten oxide powder into the stirring cylinder through vacuum feeding, adding a dispersant, heating to 30-70 DEG C, keeping the temperature and stirring for 0.5-2 h, and cooling to a room temperature for later use; and carrying out bead milling on nano tungsten oxide liquid through bead milling equipment, feeding while carrying out bead milling, stopping bead milling until the particle size D50 of the liquid is 0.05-0.08 [mu]m and D100 is 0.18-0.2 [mu]m, and filtering into a closed plastic tank by using a stainless steel filter lined with ceramic, so as to obtain the nano tungsten oxide dispersion liquid. Compared with an existing method, the preparation method is easy and convenient to operate, short in process time, more uniform in particle size, good in transparency, free of liquid precipitation and layering and good in stability.

Description

technical field [0001] The invention relates to a preparation method of a novel nano-tungsten oxide dispersion liquid, belonging to the technical field of nano-material preparation. Background technique [0002] Nano tungsten trioxide, referred to as yellow tungsten, light yellow crystalline powder, tungsten trioxide is mainly used for calcination and reduction to produce tungsten powder and tungsten carbide powder, and then for the production of hard alloy products, such as the manufacture of knives and molds, and can also be used for Manufacture of pure tungsten products, tungsten bars, tungsten wires, tungsten electrodes, and a small amount of colorants used as yellow ceramics in industrial production. In the traditional process, the nano-tungsten trioxide powder needs to be mixed evenly with other materials, the powder is easy to agglomerate, the dispersion effect is poor, the particle size advantage after agglomeration is not obvious, and the liquid uniformity is poor. ...

Claims

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Application Information

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IPC IPC(8): C01G41/02B82Y40/00
CPCC01G41/02B82Y40/00
Inventor 徐勇徐新南
Owner 宣城市晶纳环保科技有限公司
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