Method of producing composite metal oxide, metal oxide sintered body, and rotary kiln

摘要

Provided is a method of producing a composite metal oxide including, to calcine a composition containing an alkali metal and obtain a composite metal oxide, calcining the composition while being arranged on a mount a part of which in contact with the composition is formed of a metal oxide component. The metal oxide component has a content of K atoms ranging from 5 to 13 parts by weight in terms of K2O with respect to 100 parts by weight of the metal oxide component, and a total content of Al atoms, Zr atoms, Mg atoms, and Ce atoms ranging from 15 to 70 parts by weight in terms of oxides with respect to 100 parts by weight of the metal oxide component. The present invention thus provides a method of producing a composite metal oxide containing an alkali metal with reduced production costs.

主权项

1. A method of producing K2O.n (TiO2) (n=4 to 8), the method comprising:
to calcine a composition containing an alkali metal and obtain K2O.n (TiO2) (n=4 to 8), calcining the composition while being arranged on a mount a part of which in contact with the composition is formed of a metal oxide component, wherein the metal oxide component has a content of K atoms ranging from 5 to 13 parts by weight in terms of K2O with respect to 100 parts by weight of the metal oxide component in terms of oxides, and a total content of Al atoms, Zr atoms, Mg atoms, and Ce atoms ranging from 15 to 70 parts by weight in terms of oxides with respect to 100 parts by weight of the metal oxide component in terms of oxides.