Previously, there were still many shortcomings in the preparation of cesium tungstate nanopowder for transparent thermal insulation material. In this regard, experts proposed a method for preparing nanometer cesium tungstate. The cesium tungstate nanopowder prepared by the method has a small degree of agglomeration, high production efficiency and low cost, and can overcome the disadvantages existing before.
More details, please visit:
http://www.tungsten-powder.com/cesium-tungsten-bronze-chinatungsten.html
A method for preparing cesium tungstate nano powder, the steps are as follows:
1.0 Dissolve a reaction amount of ammonium paratungstate and cesium carbonate in methanol solvent. The above solution is dried to obtain powder, and the obtained powder is further pulverized to obtain a mixture of tungsten and cesium;
2.0 The mixture of tungsten and cesium powder is placed in a closed reaction vessel with stirring, a reaction solvent is added thereto, and the reaction is stirred at 350°C for 2-8 hours. Wherein, the reaction solvent is one of sorbitol, diethylene glycol, and triglyceride. The mass of the reaction solvent is 1-3 times the mass of the mixed powder of tungsten and cesium;
3.0 The reaction product in step 2.0 is separated and washed with deionized water or ethanol, dried, and pulverized by a jet mill to obtain nano cesium tungstate. The air pressure of the air bag of the crushing chamber of the jet mill is 0.6-1.1MPa, and the speed of the classifier of the jet mill is set to 1000r/min.
