Plastic and nonmetallic article shaping or treating: processes – Including step of generating heat by friction
Patent
1993-06-30
1995-02-28
Fiorilla, Christopher A.
Plastic and nonmetallic article shaping or treating: processes
Including step of generating heat by friction
264 66, 423331, 501123, C04B 3564, C04B 3502, C01B 3324
Patent
active
053934725
ABSTRACT:
A method of using dicalcium silicate, and particularly dicalcium silicate slag, to produce wollastonite. In a particular embodiment, the method is used for the production of ceramic products, such as wall tile, containing wollastonite. The method includes preparing a batch mix comprising dicalcium silicate slag and a silica source, and preferably a fluxing agent, then firing the batch mix to produce wollastonite. The method can further include adding a binder material and water to the batch mix, and then pressing the resulting batch mix to form a desired shape, prior to firing. Also, a composition, such as a ceramic product, than is produced from a dicalcium silicate slag mixed with a silica source and fired such than the dicalcium silicate in the slag and the silica source undergo a phase change to become wollastonite.
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