Particulate ceramic useful as a proppant

Details Particulate ceramic useful as a proppant Particulate ceramic useful as a proppant

1986-01-21

1990-07-31

Silverberg, Sam

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 56, 264 63, 264117, 264125, B29B 900

Patent

active

049449052

ABSTRACT:
Process for making particulate ceramics having an alumina rich region near their surface, comprising the following steps:

REFERENCES:
patent: 2566117 (1951-08-01), Christie, Jr. et al.
patent: 3486706 (1969-12-01), Weyand
patent: 3690622 (1972-09-01), Brunner et al.
patent: 4427068 (1984-01-01), Fitzgibbon
patent: 4440866 (1984-04-01), Lunghofer et al.
Cutler, R. A. and Jones, A. H., "Lightweight Proppants for Deep Gas Well Stimulation", U.S. DOE, 1982.
Ries, H. B., "Build-up Granulation", Aufbereitungs-Technik, 1971.

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