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. 31, 2010
Filed:
Apr. 09, 2008
Applicants:
David D. Kragten, Burnsville, NC (US);
Chris Capobianco, Asheville, NC (US);
Inventors:
David D. Kragten, Burnsville, NC (US);
Chris Capobianco, Asheville, NC (US);
Assignee:
Unimin Corporation, New Canaan, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/24 (2006.01); C01B 33/00 (2006.01); B01J 21/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods of converting olivine to lizardite without formation of chrysotile or brucite are disclosed. The methods comprise heating a mixture of olivine, silica, water, and a caustic agent. The addition of silica allows for complete conversion of the olivine to lizardite through a more thermodynamically favorable reaction. The olivine and silica are preferably of small particle size to increase reactivity.