Abb Lummus Crest, Inc.

Atef Shaban

George D Suciu

A process for producing bleached pulp from a fibrous plant material (e.g., wood), wherein the material is contacted with an alcohol solvent in a pulping zone to extract lignin from the fibrous plant material. The resulting pulp is then treated with a hydroperoxide or peroxide bleaching agent in a bleaching zone to form bleached pulp. Alcohol formed from the hydroperoxide or peroxide during the bleaching process may be recycled to the pulping zone. A preferred alcohol is tert-butyl alcohol, while a preferred hydroperoxide is tert-butyl hydroperoxide.

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Manalapan, NJ, United States of America

Atef Shaban