Patent ID: 6689716
Filing Date: 2004-02-10
Classification: B01J

Abstract:
A process for the manufacture of catalytic structures comprising:a. mixing an aqueous solution of a metal salt and a chemical control agent to form an intermediate solution; b. evaporating the intermediate solution to form an intermediate product wherein the evaporating is conducted in a controlled temperature process at a temperature higher than the boiling point of the solution but lower than the temperature where significant crystal growth occurs; c. mixing the intermediate product with a binder to form a mixture; d. drying the mixture to form a dried mixture; e. pressing the dried mixture into a desired shape; f. crystallizing by raising the temperature to a range between about 500Â° C. to about 1300Â° C. for a period of time from about 2 to about 24 h and thereafter by cooling to room temperature; and, g. washing the product of step f.