Robert J. Mack
Engineering at Hollyhock Ave, Lima, OH

License number
Louisiana PE.0018944
Issued Date
Jul 22, 1980
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
2849 Hollyhock Ave, Lima, OH 45807
LicenseFiles verified this license of Dec 20, 2016 at the Louisiana Engineering Foundation.

Professional information

Robert Mack Photo 1

Method For Eliminating Nitriding During Acrylonitrile Production

US Patent:
5256810, Oct 26, 1993
Filed:
Oct 14, 1992
Appl. No.:
7/960653
Inventors:
Steven J. Rowe - Medina OH
John T. Shultz - Medina OH
Robert J. Mack - Elida OH
Susan L. Dio - Port Lavaca TX
Assignee:
The Standard Oil Company - Cleveland OH
International Classification:
C07C25326
US Classification:
558320
Abstract:
An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH. sub. 3 and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any monoatomic nitrogen can react with the conduit to form a nitride.

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