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Improved preparation method of zirconium dioxide micropowder
The invention relates to an improved preparation method of zirconium dioxide micropowder. By the novel technology, the technical problems that the zirconium dioxide (ZrO2) powder is easy to agglomerate and difficult to filter and wash during the production process of the ZrO2 powder are significantly solved. For the phenomenon of easiness in agglomeration of ZrO2, a certain ratio of isopropanol and glycerol are introduced into deionized water to prepare a solvent to dissolve ZrOCl2.8H2O crystals; in the aspect of filtration and washing, the suction-filtration and washing are performed by virtue of a porous ceramic filter plate coated with nano-zirconia modified aluminum oxide ceramic membrane so as to achieve the characteristics that the solid yield is high, no pollution is caused, the energy consumption is low, continuous production can be achieved, the efficiency is greatly improved and the like so that the production cost and efficiency of the powder are significantly superior to those of the traditional press filtration or vacuum press filtration and washing manners. By the improved method, the filtering and washing costs and the production cost of the ZrO2 powder are greatly reduced, the continuous production of the ZrO2 powder is achieved and the production efficiency of the ZrO2 powder is very greatly improved; and the prepared ZrO2 powder is free of agglomeration and has particle size less than or equal to 1mu m.
Improved preparation method of zirconium dioxide micropowder
The invention relates to an improved preparation method of zirconium dioxide micropowder. By the novel technology, the technical problems that the zirconium dioxide (ZrO2) powder is easy to agglomerate and difficult to filter and wash during the production process of the ZrO2 powder are significantly solved. For the phenomenon of easiness in agglomeration of ZrO2, a certain ratio of isopropanol and glycerol are introduced into deionized water to prepare a solvent to dissolve ZrOCl2.8H2O crystals; in the aspect of filtration and washing, the suction-filtration and washing are performed by virtue of a porous ceramic filter plate coated with nano-zirconia modified aluminum oxide ceramic membrane so as to achieve the characteristics that the solid yield is high, no pollution is caused, the energy consumption is low, continuous production can be achieved, the efficiency is greatly improved and the like so that the production cost and efficiency of the powder are significantly superior to those of the traditional press filtration or vacuum press filtration and washing manners. By the improved method, the filtering and washing costs and the production cost of the ZrO2 powder are greatly reduced, the continuous production of the ZrO2 powder is achieved and the production efficiency of the ZrO2 powder is very greatly improved; and the prepared ZrO2 powder is free of agglomeration and has particle size less than or equal to 1mu m.
Improved preparation method of zirconium dioxide micropowder
LUN WENSHAN (author) / XU ZEYUE (author) / YU NAIXIAO (author)
2015-04-29
Patent
Electronic Resource
English
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