Process for the partial solubilization of phosphate rock and obt

Chemistry: fertilizers – Processes and products – Inorganic material

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71 34, 423308, 423312, E05B 6732

Patent

active

045239410

ABSTRACT:
A rapid, low temperature process for solubilizing phosphate rocks having high content of foreign matter or a low phosphorus content to obtain: (a) a slow release fertilizer of the NP type; (b) phosphoric acid of high concentration plus MAP; and (c) DAP.

REFERENCES:
patent: 988734 (1911-04-01), Peacock
patent: 1816051 (1931-07-01), Lloyd et al.
patent: 3635669 (1972-01-01), Rubin

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