Patent · US Active

Sintered particles and methods for producing sintered particles from a slurry of an alumina-containing raw material

US8614157B2 · kind B2 · utility

20Cited by

11References

27Claims

0Family size

Assignee

CARBO CERAMICS, INC. · US

Inventors

William H. Pope · Sandersville, US
Chad Cannan · Lancaster, US
Jimmy C. Wood · Eufaula, US

Key dates

Filing date	Mar 25, 2011
Grant date	Dec 24, 2013
Priority date	—
Expiry date	Apr 2, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/95
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Sintered, substantially round and spherical particles and methods for producing such sintered, substantially round and spherical particles from an alumina-containing raw material and a metal oxide sintering aid. The alumina-containing raw material contains from about 40% to about 55% alumina. Methods for using such sintered, substantially round and spherical particles in hydraulic fracturing operations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.