Process for making base metal titanate catalytic device

Claim 1

A PROCESS FOR MAKING A BASE METAL TITANATE CATALYTIC DEVICE WHICH COMPRISES THE STEPS OF: A. PREPARING AN ACID-STABILIZED ALCOHOL SOLUTION CONSISTING ESSENTIALLY OF A LOWER ALKANOL, A WEAK ORGANIC ACID, AND ALCOHOL-SOLUBLE COMPOUNDS, SAID ALCOHOL-SOLUBLE COMPOUNDS INCLUDING A LOWER ALKOXIDE OF TITANIUM AND A SALT OF AT LEAST ONE OTHER METAL SELECTED FROM THE GROUP CONSISTING OF MN, CO, FE, CU, AL AND CR, AND SAID ALCOHOL-SOLUBLE COMPOUNDS BEING PRESENT IN PROPORTIONS CALCULATED TO YIELD, UPON PYROLYTIC CONVERSION TO THE METAL OXIDES, A COMPOSITION CONSISTING ESSENTIALLY, IN WEIGHT PERCENT, OF ABOUT 15-85% TIO2, 15-70% M"O, WHEREIN M" IS MN+2, CO+2, FE+2 OR CU+2, AND 0-60% M2''"03, WHEREIN M''" IS AL+3, FE+3, CR+3, MN+3 OR CO+3, B. CONTACTING A REFRACTORY CERAMIC SUPPORT STRUCTURE WITH SAID SOLUTION TO PRODUCE A SOLUTION-COATED SUPPORT STRUCTURE, C. CONTACTING SAID SOLUTION-COATED SUPPORT STRUCTURE WITH AN AMMONIACAL PRECIPITATING AGENT TO PRECIPITATE FROM SAID SOLUTION ONTO SAID SUPPORT STRUCTURE A COATING OF THE HYDROXIDES OF SAID TITANIUM AND OTHER METALS, AND THEREAFTER D. HEATING SAID STRUCTURE TO A TEMPERATURE IN THE RANGE OF ABOUT 600*-1200*C. FOR A TIME IN THERANGE OF ABOUT 1-4 HOURS TO CONVERT SAID COATING OF HYDROXIDES TO AN OXIDE COATING COMPRISING AT LEAST ONE TITANIFEROUS CRYSTAL PHASE SELECTED FROM THE GROUP CONSISTING OF: I. M2 "TIO4-M"M2''"O4 SOLID SOLUTIONS OF CUBIC OR PSEUDOCUBIC STRUCTURE, II. M"TIO3-M2''"O3 SOLID SOLUTIONS OF HEXAGONAL OR PSEUDOHEXAGONAL STRUCTURE, AND III. M"TI2O5-M2"''TIO5 SOLID SOLUTIONS OF ORTHORHOMBIC OR PSEUDO-ORTHORHOMBIC STRUCTURE.