Method for producing double metal oxide powder
AssigneeSumitomo Chemical Company, Limited
InventorKunio Saegusa
Life of this patent
Estimating the term…
Abstract
A method for producing a double metal oxide of the general formula: XMO.sub.3 in which X is Li, Na, K, Pb, Ba, Mg, Ca, Sr, La, Y or Bi, and M is Al, Mn, Ti, Zr, Sn, Mg, Zn, Fe, Co, Ni, Nb, Ta or W, which has a narrow particle size distribution and contains few agglomerates, by calcining a mixture of a simple oxide of metal X and a simple oxide of metal M; amorphous double metal oxide particles comprising X and M or their mixture; or metal oxide precursors which are converted to said simple metal oxides or said double metal oxide, in the presence of iodine or hydrogen iodide.
Claims7
A method for producing a double metal oxide of the general formula:
- XMO.sub.3
- wherein X is at least one metal element selected from the group consisting of Li, Na, K, Pb, Ba, Mg, Ca, Sr, La, Y and Bi, and M is at least one metal element selected from the group consisting of Al, Mn, Ti, Zr, Sn, Mg, Zn, Fe, Co, Ni, Nb, Ta and W, comprising calcining a mixture of a simple oxide of metal X and a simple oxide of metal M;
- amorphous double metal oxide particles comprising X and M or their mixture;
- or metal oxide precursors which are converted to said simple metal oxides or said double metal oxide, in the presence of iodine or hydrogen iodide.
Dependencies are inferred from the claim text.