The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1987
Filed:
Mar. 27, 1985
Octavian Anton, Brussels, BE;
Pierre Jacobs, Gooik, BE;
Georges Poncelet, Beauvechain, BE;
Phillippe Jacques, Ciney, BE;
Redco N.V., Kapelle Op Den Bos, BE;
Abstract
Amorphous, approximately spherical silica particles prepared by the acidic hydrolysis of an approximately spherical synthetic calcium silicate having a uniform microgranular structure on their external surfaces and a structure in the interior thereof which structure only weakly recall the original crystal needle structure of the starting material. The average external particle size is from 15 to 80 .mu.m, the apparent particle volume is from 1.3 to 3 cm.sup.3 /g, and the specific surface area is from 250 to 800 m.sup.2 /g. The silica particles are particularly suitable for use as catalyst supports.