PRODUCTION OF LANTHANUM-BASED PEROVSKITE-TYPE MULTIPLE OXIDE

PURPOSE:To obtain the subject homogeneous and highly active multiple oxide by homogeneously mixing a lanthanum alkoxyalcoholate and specific metal alkoxyalcoholate(s) with an organic solvent followed by heating and baking. CONSTITUTION:This lanthanum-based perovskite-type multiple oxide of formula I...

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Bibliographic Details
Main Authors MITATE CHIAKI, MATSUZAWA MASAMI, NAGAI AKIYOSHI, KANEKO MASAYOSHI, YOSHIDA KUNITOSHI
Format Patent
LanguageEnglish
Published 05.12.1995
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS THEREOF
CONCRETE
ELECTRICITY
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC CHEMISTRY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PURPOSE:To obtain the subject homogeneous and highly active multiple oxide by homogeneously mixing a lanthanum alkoxyalcoholate and specific metal alkoxyalcoholate(s) with an organic solvent followed by heating and baking. CONSTITUTION:This lanthanum-based perovskite-type multiple oxide of formula IV (0<(x)<=1) is obtained, without generating any offensive odor, by heating and baking a mixed solution, a mixture of (A) a lanthanum alkoxyalcoholate of formula I [IR is H or a lower alkyl; R is a lower alkyl; (a) is 1-3], (B) at least one kind of metal alkoxyalcoholate of formula II (B is Mg, Cr, Mn, Fe, Co, Ni, Cu or Zn), (C) an organic solvent, and, optionally, (D) another metal alkoxyalcoholate of formula III [A is Sc, Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ca, Sr or Ba; (s) is 2-3]}.
Bibliography:Application Number: JP19940111609