Ceramic honeycomb body with improved resistance to pressure

摘要

Honeycomb body consists of a ceramic material having first and second front surfaces and a cylindrical casing with channels running from one front surface to the other. The channels have walls and are arranged in a regular grid over the cross-section of the body. An outer edge zone of the body has a thickness of several channel diameters and surrounds a central region. The ceramic material of the casing and the channel walls is reinforced by applying one or more inorganic materials to increase the mechanical stability. Independent claims are also included for: (a) a process for the production of a ceramic honeycomb body comprising applying an aqueous or organic preparation of the inorganic materials by immersing, pumping or sucking into the ceramic material of the channel walls of the outer edge zone; and converting the green body by calcining in the honeycomb body; and (b) a monolithic coating catalyst containing a catalytically active coating on a honeycomb body made from ceramic material.