E.i. Dupont De Nemours and Company

Dsm N.v.

Invista North America S.a.r.l.

Invista Technologies S.a.r.l.

Bruce Edwin Murphree

John Joseph Ostermaier

Ronnie Ozer

William J Tenn, Iii

Emilio Enrique Bunel

Thomas E Vos

Tseng H Chao

Ludovic Fodor

Larry E Moerbe

Samuel L Lane

Sudhir Aki

Willie Jon Barnette

Harold Stanley Bruner

James E McIntosh

David Paul Landray

James Marvin Rung

Michael W Wensing

Mark D Rogers

Charles Nelson Campbell, Ii

Mark Anstrom

Wyatte E Allen

William J Iii Tenn

Charles Nelson Ii Campbell

Wyatt E Allen

Mark A Anstrom

The present invention relates to a process for hydrocyanating 3-pentenenitrile. The process can include feeding 3-pentenenitrile and HCN to a hydrocyanation reaction zone that includes a Lewis acid promoter, nickel, and a phosphorus-containing ligand. In various embodiments, the process can also include controlling water concentration within the hydrocyanation reaction zone sufficient to maintain a high activity of the ligand catalyst complex while recycling at least a portion of the ligand catalyst complex.

Process for making nitriles

A process and apparatus for reacting deleterious impurities contained in adiponitrile (ADN) comprises feeding ADN and an ozone containing gas into a co-current plug flow reactor containing static mixer elements, to oxidize at least a portion of the impurities, thereby producing a reactor discharge, which is processed to produce an ozone-treated ADN product.

Process for improving adiponitrile quality

Process for oxidizing cyclohexane in which oxygen is contacted with cyclohexane at a pre-selected feed rate in a first reaction zone and unconsumed oxygen is contacted with cyclohexane in a second reaction zone in which the cyclohexane feed rate is lower than the pre-selected feed rate.

Process for oxidation of cyclohexane

A method of removing water from wet organoborane by dissolving the wet organoborane in an organic solvent in which water is incompletely soluble, decanting any insoluble water, and distilling the organic phase to remove water which may be contained therein.

Process for removing water from organoborane compounds

This invention provides a process for the preparation of adipic acid from pentenoic acids or esters of pentenoic acids by hydrocarboxylation of a reaction mixture in which gamma-valerolactone constitutes 30 to 70% by weight of the reaction mixture.

Manufacture of adipic acid

3-pentenoic acid or the R ester of pentenoic acid is produced by treating pentenoyl chloride in a reactive distillation zone with ROH where R is hydrogen or hydrocarbon of 1 to 6 carbon atoms. Butadiene may be reacted with HCl that is formed by the hydrolysis of pentenoyl chloride, and the butadiene converted to chlorobutene, and the chlorobutene reacted with carbon monoxide to form pentenoyl chloride.

Preparation of pentenoic acid

Palladium catalyst residue is recovered from still heels by treating the still heels with hydrochloric acid, converting the palladium component to crotyl palladium chloride, and using the crotyl palladium chloride as catalyst in the carbonylation of chlorobutene to 3-pentenoyl chloride.

Catalyst recovery in the carbonylation of chlorobutenes to pentenoyl

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Beaumont, TX, United States of America

Bruce Edwin Murphree