Solutia Incorporated

Other

Ascend Performance Materials LLC

Valerie S Monical

Gregory J Ward

Scott G Moffatt

Bryan C Blanchard

Richard D Murphy

Balshekar Ramchandran

Daniel Eric Steinmeyer

Mikhail I Khramov

Natalya Koryabkina

A process for the ammoxidation of an alcohol feed, such as methanol, or a nitrile feed, such as propionitrile, or a mixture thereof, to form hydrogen cyanide uses a modified Mn&#x2014;P catalyst having the following empirical formula:MnPAOwhere A=one or more of K, Ca, Mo, Zn, Fe or mixtures thereof; a=1 to 1.5; b=0.01 to 1.0 and x is a total number of oxygen atoms determined by the oxidation states of the other elements present.

Process of catalytic ammoxidation for hydrogen cyanide production

Acrolein is removed from a process stream such as a process stream generated in the manufacture of acrylonitrile. The process includes reacting the acrolein with a compound containing a reactable thiol or hydroxyl moiety in the presence of an acid catalyst. The present process provides for a refined process stream that contains no more than 5 ppm by weight unreacted acrolein.

Process for removal of acrolein from acrylonitrile product streams

A non-catalytic process for reducing nitrogen oxide (NO) emissions in the combustion effluent of a stationary combustion apparatus is provided comprising contacting, in the combustion zone of the combustion apparatus, an effective amount of at least one nitrile compound with a waste stream, an auxiliary fuel stream, and air at a temperature sufficient to reduce the NOemissions in the combustion effluent.

Process for reducing nitrogen oxide emissions

A process is described for the recovery of acrylonitrile from an ammoxidation reactor effluent stream containing acrylonitrile, water, and organic impurities. The process includes the steps of (a) quenching an ammoxidation reactor effluent stream that includes acrylonitrile, water, and organic impurities with an aqueous quench stream, thereby producing a cooled reactor effluent stream; (b) passing the cooled reactor effluent stream through an absorption column, thereby generating an absorber bottoms stream that includes water, acrylonitrile, and organic impurities; and (c) passing the absorber bottoms stream through a single recovery/stripper column, generating an acrylonitrile-rich overhead stream, a lean water side stream, and a recovery/stripper bottoms stream that includes organic impurities. The acrylonitrile-rich overhead stream can be passed through a decanter to separate water from acrylonitrile. The lean water side stream can be recycled for use in the absorption column.

Process for recovery of olefinically unsaturated nitriles

The fouling rate of quench systems in acrylonitrile manufacturing processes is reduced by maintaining a low level of highboiling organic compounds in aqueous recycle streams to the quench systems.

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Houston, TX, United States of America

Valerie S Monical