Ineos USA LLC

Thomas L Szabo

Christos Paparizos

Muin S Haddad

Mark A Toft

Kenneth Keckler

Bhagya Chandra Sutradhar

Albert R Shuki

Lina K Bodiwala

Thomas L Bowman

The present invention comprises a method for preparing a mixed oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutene by ammoxidation in a gaseous phase via methods of heating or calcining precursor solid mixture to obtain mixed metal oxide catalyst compositions that exhibit catalytic activity.

Method of making mixed metal oxide catalysts for ammoxidation and/or oxidation of lower alkane hydrocarbons

A process for the recovery of unreacted ammonia from the effluent from a reaction zone used to produce acrylonitrile or methacrylonitrile comprising quenching the reactor effluent with an aqueous solution of ammonium phosphate in at least two stages, thereby capturing the ammonia component of the effluent. The captured ammonia may be recovered by heating the aqueous ammonium phosphate, which then may be recycled. Contaminants present in the aqueous ammonium phosphate may be removed, for example by solvent extraction or wet oxidation, prior to recycle.

Process for recovery and recycle of ammonia from a vapor stream

Growing community of inventors

Schaumburg, IL, United States of America

Thomas L Szabo