The Lion Fat and Oil Co. Ltd.

Mitsubishi Gas Chemical Company, Inc.

Noboru Hara

Sadao Toyoda

Kuniyoshi Takenouchi

Eiichi Yonemitsu

Chiharu Nishizawa

Shizuo Togo

Muneo Ito

Kenichiro Hashimoto

Fusao Kondo

Norihiro Ohno

A process for improving the properties of granular detergents, that is, caking preventability, fluidity and particle hardness, which comprises spray-coating a coating agent [I] consisting of the silicates, sulfates, carbonates and hydroxides of alkali metals and a coating agent [II] consisting of polyvalent metal sulfates separately onto a granular detergent obtained by the conventional spray granulating method, tumbling granulating method, piston granulating method, pressure granulating method and the like, under a condition in which the granular detergent is in a fluid state; causing a reaction on the surface of the granular detergent particles; and forming thereon a coating film of a water-insoluble or poorly water-soluble substance.

Process for improving granular detergents

A process for alkylating the ortho-position of a phenol compound which comprises bringing a phenol compound containing at least one hydrogen atom at its ortho-position and an alcohol into contact with a catalyst in the gaseous phase, said catalyst being selected from the group consisting of

Process for ortho-alkylation of phenol compounds

A method of manufacturing a granular detergent by spray drying a slurry of cleaning materials, which comprises: wetting the surfaces of the granules of detergent formed by spray drying; coating the thus wetted surfaces with 0.02 - 4 parts by weight of powdery builders per 1 part by weight of the granules of detergent; and drying it thereafter.

Method of manufacturing granular detergents

Growing community of inventors

Tokyo, Japan

Noboru Hara