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:
Mar. 04, 2008
Filed:
Jul. 27, 2005
Edward Bayer Mcnew, Las Vegas, NV (US);
Richard Donald Witham, Las Vegas, NV (US);
John Leslie Burba, Iii, Boulder City, NV (US);
Edward Bayer McNew, Las Vegas, NV (US);
Richard Donald Witham, Las Vegas, NV (US);
John Leslie Burba, III, Boulder City, NV (US);
Molycorp, Inc., Mountain Pass, CA (US);
Abstract
Oxyanions of various contaminant elements, such as chromium, antimony, molybdenum, tungsten, vanadium and uranium, are removed from water and other aqueous feeds by treating the feed with (1) a sorbent comprising one or more rare earth compounds, usually mixed or supported on particulate solids having a cation exchange capacity less than 20 milliequivalents per 100 grams or (2) an aqueous solution of one or more soluble rare earth compounds.