Abstract: Calcined kaolin clay is pelletized in a pelletizer by a process wherein the calcined clay has ammonia added to it, suitably in relatively small amounts such as less than 1% by weight. The pelletized clay is preferably coated with a binder to improve its flowability.
Type:
Grant
Filed:
October 10, 1989
Date of Patent:
November 15, 1994
Assignee:
ECC International Inc.
Inventors:
Weyman H. Dunaway, Elizabeth H. Garrett, Dudley C. Rowe