Rogelio Serge Ribas - Decatur GA John D. Nickerson - Atlanta GA
Assignee:
United States Steel Corporation - Pittsburgh PA
International Classification:
C01B 2516
US Classification:
423319
Abstract:
An improved process for preparing wet process phosphoric acid by calcining a phosphate source at a temperature in the range of 1600. degree. - 2200. degree. F. The phosphate source may be wet or dry mined phosphate matrix, phosphate slimes, phosphate pebble or other phosphate source.