Method of improving siliceous filter aid dispersion in wet proce

Details Method of improving siliceous filter aid dispersion in wet proce Method of improving siliceous filter aid dispersion in wet proce

1980-03-17

1981-07-14

McCarthy, Helen M.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423320, 423321R, C01B 2516

Patent

active

042786487

ABSTRACT:
A process is disclosed for improving the dispersability of siliceous (preferably diatomite) filter aid particles in hot (i.e., 140.degree. F. or higher) aqueous acid systems used in the "wet process" formation of orthophosphoric acid from phosphate rock. In this process the filter aid particles are prewetted with water to cause the adsorption of 15 to 75 weight percent of water on the filter aid prior to dispersing the prewetted filter aid in the acid system.

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