Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing zirconium oxide
The invention discloses a method for preparing zirconium oxide. The method for preparing the zirconium oxide is characterized in that the zirconium oxide is prepared by reacting zirconium oxychloride and sodium hydroxide in the ion liquid-sodium trifluoromethanesulfonate under normal pressure. The method comprises the following steps: adding the zirconium oxychloride and sodium hydroxide into the ion liquid-sodium trifluoromethanesulfonate to react, wherein the reacting temperature is 260-300 DEG C, the operation pressure is normal pressure and the reaction time is 4-20h, after finishing reaction, washing the reaction product by deionized water, centrifuging and separating, and treating the obtained solid object at high temperature to obtain the zirconium oxide powder. The separated mother solution is treated and the ion liquid-sodium trifluoromethanesulfonate is recovered and recycled. By adopting the method, a high-tension apparatus is not needed, the reaction condition is mild and the treatment of plenty of industrial cleaning waste water is not needed in the process. The zirconium oxide powder prepared by the method is excellent in performance without agglomeration phenomenon. Various zirconium oxide composite powders containing a stabilizer can be produced by additionally adding the stabilizer.
Method for preparing zirconium oxide
The invention discloses a method for preparing zirconium oxide. The method for preparing the zirconium oxide is characterized in that the zirconium oxide is prepared by reacting zirconium oxychloride and sodium hydroxide in the ion liquid-sodium trifluoromethanesulfonate under normal pressure. The method comprises the following steps: adding the zirconium oxychloride and sodium hydroxide into the ion liquid-sodium trifluoromethanesulfonate to react, wherein the reacting temperature is 260-300 DEG C, the operation pressure is normal pressure and the reaction time is 4-20h, after finishing reaction, washing the reaction product by deionized water, centrifuging and separating, and treating the obtained solid object at high temperature to obtain the zirconium oxide powder. The separated mother solution is treated and the ion liquid-sodium trifluoromethanesulfonate is recovered and recycled. By adopting the method, a high-tension apparatus is not needed, the reaction condition is mild and the treatment of plenty of industrial cleaning waste water is not needed in the process. The zirconium oxide powder prepared by the method is excellent in performance without agglomeration phenomenon. Various zirconium oxide composite powders containing a stabilizer can be produced by additionally adding the stabilizer.
Method for preparing zirconium oxide
XING CHANGSHENG (Autor:in) / HUANG YONG (Autor:in) / ZOU XIANMING (Autor:in) / CHEN XIANGYU (Autor:in)
22.07.2015
Patent
Elektronische Ressource
Englisch
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