Loading patent…
AssigneeW. R. Grace & Co.-Conn.
InventorsJames G. Miller, Michael J. Wax, Richard F. Wormsbecher, Leo B. Aller, Donald R. Durham, Alan B. Chmurny
Estimating the term…
Porous bodies are produced which are suitable for use as supports for catalysts, including living cells, such as bacteria and which are upset resistant to acids and bases. The bodies have a significantly large average pore diameter of about 0.5 to 100 microns, (i.e. 5,000 to 1,000,000 .ANG.) and a total pore volume of about 0.1 to 1.5 cc/g with the large pores contributing a pore volume of from about 0.1 to 1.0 cc/g. The bodies are made by preparing a mixture of ultimate particles containing a zeolite and one or more optional ingredients such as inorganic binders, extrusion or forming aids, burnout agents, or a forming liquid, such as water. In a preferred embodiment, the ultimate particles are formed by spray drying.
A macroporous, upset resistant, inorganic oxide catalyst support, which support comprises at least one zeolite particle having a particle size from 1 to 1000 microns and an inorganic binder which binds said zeolite particles together in a manner such that macropores are formed throughout the catalyst support, wherein said catalyst support has a total pore volume of 0.1 to 1.5 cc/g;
A method of making a macroporous, upset resistant, inorganic oxide catalyst support comprising:
Dependencies are inferred from the claim text.