Method of producing phosphorus-containing fertilizers

Details Method of producing phosphorus-containing fertilizers Method of producing phosphorus-containing fertilizers

1973-07-27

1976-03-30

Hart, Charles N.

Chemistry: fertilizers

Processes and products

Inorganic material

71 40, 71 41, 423319, 423320, C05B 1104, C05B 1108, C01B 2516

Patent

active

039472620

ABSTRACT:
A method of producing phosphorus-containing fertilizers, wherein the phosphate raw stock is treated with a mineral acid selected from the group, consisting of phosphoric acid, sulphuric acid and a mixture of both. The thus-obtained suspension of the phosphorus-containing fertilizers is acted upon by acoustic vibrations at a frequency of from 500 to 20,000 Hz and a second energy density of from 0.5 to 5 W/cm.sup.2, whereupon the end product is isolated.

REFERENCES:
patent: 2489768 (1949-11-01), Firth
patent: 2578377 (1951-12-01), Smith
patent: 3161466 (1964-12-01), Fallin
patent: 3165299 (1965-01-01), Balamuth et al.
patent: 3169013 (1965-02-01), Jones
patent: 3507641 (1970-04-01), Richmond et al.
patent: 3636859 (1972-01-01), Null

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