Process for improving the fluidity and conveyability of moist ca

Details Process for improving the fluidity and conveyability of moist ca Process for improving the fluidity and conveyability of moist ca

1983-10-25

1985-04-02

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106110, 106118, 106121, C04B 1110

Patent

active

045085749

ABSTRACT:
A process for improving the fluidity and conveyability properties of moist calcium sulfate precipitates, having a free water content of more than about 5% by weight, which entails mixing quicklime (CaO), burnt dolomite (CaO+MgO) or a mixture thereof, in finely ground form to said moist calcium sulfate precipitate in an amount of about 10% by weight or greater, based upon the calcium sulfate content, to form a homogeneous mixture of the same.
The homogenized mixtures so prepared have good pourability and can be conveniently stored or conveyed. They can be used as setting retarders in cement or, they can be used in the production of gypsum wall board and plaster.

REFERENCES:
patent: 2937926 (1960-05-01), Hanusch
patent: 3159497 (1964-12-01), Yamaguchi
patent: 3414462 (1968-12-01), Cafferata
patent: 3827897 (1974-08-01), Dumont
patent: 3945841 (1976-03-01), Dumont

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