Process of manufacturing non-gelling suspension liquid fertilize

Details Process of manufacturing non-gelling suspension liquid fertilize Process of manufacturing non-gelling suspension liquid fertilize

1974-10-21

1978-11-28

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Inorganic material

71 64C, C05B 700

Patent

active

041274008

ABSTRACT:
A process of manufacturing liquid fertilizer from ortho phosphoric acid is described herein. Specifically, the process involves extracting ortho phosphoric acid from phosphate rock using sulfuric acid in the usual manner. The ortho phosphoric acid is then concentrated to a P.sub.2 O.sub.5 content of 30-58% by weight. The wet process ortho phosphoric acid is then ammoniated at a carefully controlled pH in a range of about 3.0 to 5.5. Water and commercial clays are added to the ammoniated phosphoric acid during ammoniation or after ammoniation. A stable non-gelling suspension fertilizer results.

REFERENCES:
patent: 2950961 (1960-08-01), Striplin et al.
patent: 3109729 (1963-11-01), Slack et al.
patent: 3179496 (1965-04-01), Skinner et al.
patent: 3813233 (1974-05-01), Kendrick, Jr.

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