Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1983-12-19
1988-11-01
Doll, John
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
502232, 502 77, C01B 3326
Patent
active
047819065
ABSTRACT:
A novel crystalline silica composition having a silica to alumina atomic ratio not lower than 80 and having a certain specific X-ray diffraction pattern after calcination in air for at least 3 hours at a temperature of at least 500.degree. C.
REFERENCES:
patent: 3702886 (1972-11-01), Argauer et al.
patent: 4061724 (1977-12-01), Grose et al.
Wu et al., "Journal of Physical Chemistry", vol. 83, No. 21, 1979, pp. 2777-2781.
Cahen Raymond M.
Debras Guy L. G.
DeClippeleir Georges E. M. J.
Abokhair John K.
Breneman P. Bruce
Cheairs M. Norwood
Doll John
Jackson William D.
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