Patent ID: 7422719
Filing Date: 2008-09-09
Classification: C04B,F26B,F27B,F27D,Y02P

Abstract:
1. A method for forming a multicellular ceramic article, the method comprising: a. forming a mixture of components comprising inorganic ceramic powder materials, a binder, an aqueous solvent for the binder, and an oil-based component having a flash point; b. mixing and plasticizing the components to form a plasticized mixture; c. shaping the plasticized mixture into a green honeycomb article; d. drying the green honeycomb article; e. removing at least 70% of the oil-based component from the green honeycomb article by flowing a heated gas longitudinally through the green honeycomb article, wherein the heated gas is flowed at a rate of 0.2 to 8 standard cubic feet per minute (scfm) per 90 cubic inches of the green honeycomb article; and, f. firing the green honeycomb article having a portion of the oil-based component removed to form the multicellular ceramic article.