Process for crystallizing potassium sulfate

Details Process for crystallizing potassium sulfate Process for crystallizing potassium sulfate

1985-03-25

1985-12-31

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423166, 423193, 423266, 423497, 423552, 423554, 23298, 23300, 23302R, C01D 1506, C01F 538

Patent

active

045620580

ABSTRACT:
An improved process for the production of potassium sulfate crystals by the reaction of saturated solution of potassium chloride with langbeinite in the solid phase at a temperature of from 45.degree.-55.degree. C., thereby forming potassium sulfate crystals and magnesium chloride solution comprising the step of conducting the reaction in the presence of a growth enhancer comprising monosulfonated or monosulfated surfactant and a neutralized disulfonated surfactant in a weight ratio of from about 0.14 to 0.69.

REFERENCES:
patent: 2295257 (1942-09-01), Butt et al.
patent: 2437182 (1948-03-01), Barr et al.
patent: 2743288 (1966-04-01), Rueggeberg et al.
patent: 3598545 (1971-08-01), Lehman
patent: 3770390 (1973-11-01), Teot
patent: 3843772 (1974-10-01), Boeglin
patent: 3853490 (1974-12-01), Boeglin et al.
patent: 3876639 (1972-08-01), Barlow

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