Gypsum-based granules and method of production

Details Gypsum-based granules and method of production Gypsum-based granules and method of production

1977-12-27

1980-01-15

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106110, C04B 1100

Patent

active

041837630

ABSTRACT:
Calcium sulfate hemihydrate is processed into agglomerates such as granules and/or macrogranules by addition of an aqueous binder to a fluidized charge of calcium sulfate hemihydrate particles. The hemihydrate particles are agglomerated to a predetermined size range and hydrated to calcium sulfate dihydrate. The produced agglomerates have a bulk density of less than about 55 pounds per cubic foot, a surface hardness providing less than about 40 percent attrition, and a liquid holding capacity of at least about 10 percent.

REFERENCES:
patent: 3480387 (1969-11-01), Yasutake et al.
patent: 3943072 (1976-03-01), Thomson et al.

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