Process for production of fertilizers

Details Process for production of fertilizers Process for production of fertilizers

1976-04-16

1978-02-14

Spear, Jr., Frank A.

Chemistry: fertilizers

Processes and products

Inorganic material

71 40, 55 73, 423242, C05B 1108

Patent

active

040736342

ABSTRACT:
A process for the production of fertilizer comprising reacting sulfur oxide containing gas and water in a multiple state reactor to form sulfur containing acid, reacting the sulfur containing acid with a basic ion selected from the group consisting of calcium, ammonium and potassium ions, the calcium being derived from a salt selected from the group consisting of phosphatic and nitrogeneous salts, to form a fertilizer selected from the group consisting of phosphatic, nitrogeneous and potassium fertilizers and combinations thereof. This process is suitable for the utilization of sulfur oxides resulting from the combustion of high sulfur containing fossil fuels and sulfur producing chemical processes. The process of this invention enables the utilization of low concentration sulfur acid in the acidification of phosphate rock utilizing a multiple state reactor.

REFERENCES:
patent: 2106223 (1938-01-01), Nordengren
patent: 2849278 (1958-08-01), Feldt
patent: 3687613 (1972-08-01), Rickard
patent: 3767777 (1973-10-01), Frye et al.
patent: 3807962 (1974-04-01), Gustavsson
patent: 3957465 (1976-05-01), Pircon
patent: 3969482 (1976-07-01), Teller

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