Process for making granulated alkali metal orthophosphates

Details Process for making granulated alkali metal orthophosphates Process for making granulated alkali metal orthophosphates

1982-02-01

1983-05-24

Vertiz, O. R.

Chemistry of inorganic compounds

With additive

Including anticaking or antihygroscopic function

423274, 423305, 423312, 252385, C01B 1516, C01B 2526

Patent

active

043850405

ABSTRACT:
The disclosure relates to a process for making granulated, hydrated alkali metal orthophosphates. To this end, the disclosure provides for one or more anhydrous or partially hydrated alkali metal orthophosphates presenting a degree of hydration of less than 90%, based on the theoretically possible degree of hydration, and containing an at least 20% proportion of particles with a size of less than 0.045 mm, to be intensively mixed and granulated with water and an ammonium polyphosphate.

REFERENCES:
patent: 2958577 (1960-11-01), Arvan
patent: 3110559 (1963-11-01), Bigot
patent: 3233967 (1966-02-01), Shen
Winnacker et al., Chemische Technologie, Band 1, Anorganische Technologie I, (1970) p. 371.

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