Atmospheric emissions from wet-process phosphoric acid manufacture
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Growth of WetProcess Phosphoric Acid Industry in United
WETPROCESS PHOSPHORIC ACID MANUFACTURE
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calcium sulfate CD O O Chemical CM CM Control device control equipment cross-flow packed scrubber crystal diameter Diammonium phosphate dilute distilled duct feet per minute Figure filtration Florida fluorapatite fluoride concentration fluoride removal gallons per minute gas sample gas streams gaseous fluoride emissions gases grain per standard gypsum pond heat hydrogen fluoride impurities insoluble particulate fluoride isokinetic liquid milliliters nomograph P2O5 produced packed section packed tower particulate matter PgO5 phos phosphate rock PHOSPHORIC ACID MANUFACTURE phosphoric acid plants Plant number plants tested Prayon pressure drop Public Health Service range reactor rt rt sampling train scrubber efficiency Scrubber water scrubbing SiF4 silicon tetrafluoride slurry Spadns spray chamber Spray cross-flow packed spray towers stack standard cubic foot sulfuric acid sump Tables A-l tank temperature Total particulate triple superphosphate type of scrubber vacuum evaporators velocity vents venturi scrubber wet-process acid wet-process phosphoric acid