Process for the manufacture of granular monohydrated sodium perb

Details Process for the manufacture of granular monohydrated sodium perb Process for the manufacture of granular monohydrated sodium perb

1989-11-03

1990-07-17

Doll, John

Chemistry of inorganic compounds

Boron or compound thereof

Oxygen containing

423279, 423280, 423281, C01B 1512, C01B 3512

Patent

active

049420259

ABSTRACT:
Process for the manufacture of granular monohydrated sodium perborate, endowed with abrasion resistance, starting from the corresponding tetrahydrated perborate, characterized in that a carboxylic acid, containing from 1 to 3 C atoms, or an alkali metal salt thereof, is added to the tetrahydrated perborate, already present in the granular state, whereafter a dehydration of the tetrahydrated perborate is carried out.

REFERENCES:
patent: 3623836 (1971-11-01), Denaeyer et al.
patent: 3914380 (1975-10-01), Dillenburg et al.
patent: 4211759 (1980-07-01), Mollard
patent: 4298585 (1981-11-01), Malafosse et al.
Handbook of Chemistry and Physics, 49th edition Weast, p. B-245.

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