Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles
Patent
1977-05-11
1978-09-05
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Stratified or layered articles
264117, B01J 210
Patent
active
041120353
ABSTRACT:
Pelletizing damp gypsum to render the gypsum easily calcinable by a process in which the damp gypsum is agitated, and when moisture is observed at the surface of the forming pellets a dry powdered compound of calcium is added until the forming pellets are coated with the powdered compound to become free-flowing.
REFERENCES:
patent: 3793841 (1974-02-01), Dozsa
patent: 3956445 (1976-05-01), Hunt
Ansbro Denis
Lawrence Leslie John
Hall James R.
Tioxide Group Limited
White Robert F.
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