JOHN EDWARD COLEMAN
Pilots at Windcrest Pl, Cleveland, TN

License number
Tennessee A0357074
Issued Date
Oct 2015
Expiration Date
Oct 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
381 Windcrest Pl NW, Cleveland, TN 37312

Professional information

John Coleman Photo 1

Production Of High Purity Stable Ferrate Salts

US Patent:
4500499, Feb 19, 1985
Filed:
Jun 1, 1983
Appl. No.:
6/500126
Inventors:
Jerry J. Kaczur - Cleveland TN
John E. Coleman - Cleveland TN
Assignee:
Olin Corporation - Cheshire CT
International Classification:
C01G 4900, C01D 1300
US Classification:
423139
Abstract:
An improved process for producing stable, high purity alkali metal or alkaline earth metal ferrate salt products is disclosed. In this process, crude ferrate salts, after being precipitated and separated from a chilled mother liquor, are purified first with a chilled anhydrous, water miscible extraction solvent to remove residual process contaminants therefrom followed by chilled oxidation resistant rinse solvent step, miscible with said extractant, followed by a drying step so as to produce a stable, purified ferrate product which can be safely stored without special provisions. Both batch and continuous modes of operation are disclosed.