Production of suspension fertilizers from orthophorphoric acid

Details Production of suspension fertilizers from orthophorphoric acid Production of suspension fertilizers from orthophorphoric acid

1979-03-19

1983-03-08

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Inorganic material

71 43, 71 6408, 423310, 423313, C05B 700

Patent

active

043759807

ABSTRACT:
An improved process for the production of concentrated, high-grade, nitrogen-phosphate (N--P.sub.2 O.sub.5) base suspension fertilizer from wet-process or other phosphoric acids and ammonia. The process involves addition of small proportions of fluosilicic acid during preparation of the suspension to cause modification of monoammonium phosphate crystals to shapes and sizes that do not settle during vibration such as occurs during shipment.

REFERENCES:
patent: 1699234 (1929-01-01), Gaus et al.
patent: 3024100 (1962-03-01), Langguth et al.
patent: 3493336 (1970-02-01), Milling
patent: 3813233 (1974-05-01), Kendrick
patent: 3861897 (1975-01-01), Frazier
patent: 4063920 (1977-12-01), Weston
patent: 4066432 (1978-01-01), Jones
patent: 4137063 (1979-01-01), Sardisco

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