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:
Jul. 07, 2015
Filed:
Aug. 30, 2012
Qunhui Guo, Murrysville, PA (US);
Carol L. Knox, Apollo, PA (US);
Raphael O. Kollah, Wexford, PA (US);
Justin J. Martin, Jeannette, PA (US);
Shantilal M. Mohnot, Murrysville, PA (US);
Timothy A. Okel, Trafford, PA (US);
Daniel E. Rardon, Pittsburgh, PA (US);
Qunhui Guo, Murrysville, PA (US);
Carol L. Knox, Apollo, PA (US);
Raphael O. Kollah, Wexford, PA (US);
Justin J. Martin, Jeannette, PA (US);
Shantilal M. Mohnot, Murrysville, PA (US);
Timothy A. Okel, Trafford, PA (US);
Daniel E. Rardon, Pittsburgh, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
The present invention is directed to a separation medium comprising rotary dried or spray dried precipitated silica. The silica has a pore surface area P wherein logP>2.2, and the ratio of BET to CTAB is at least 1.0 measured prior to any surface modification of the silica. The present invention is further directed to a method of separating suspended or dissolved materials from a fluid stream, comprising contacting the stream with the separation medium described above.