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:
Nov. 29, 2011
Filed:
Oct. 31, 2007
John L. Burba, Iii, Parker, CO (US);
Carl R. Hassler, Gig Harbor, WA (US);
C. Brock O'kelley, Las Vegas, NV (US);
Joseph A. Lupo, Las Vegas, NV (US);
Joseph R. Pascoe, Las Vegas, NV (US);
John L. Burba, III, Parker, CO (US);
Carl R. Hassler, Gig Harbor, WA (US);
C. Brock O'Kelley, Las Vegas, NV (US);
Joseph A. Lupo, Las Vegas, NV (US);
Joseph R. Pascoe, Las Vegas, NV (US);
Molycorp Minerals, LLC, Greenwood Village, CO (US);
Abstract
An apparatus for treating an aqueous solution containing arsenic. The apparatus comprises a container that includes a housing, an inlet located at a first end of the housing and an outlet located at a second end opposite the first end. An outer wall extends between the first and second ends and enclosing a fluid flow path between the inlet and the outlet and an arsenic fixing agent is disposed in the fluid flow path. The arsenic fixing agent can include an insoluble rare earth-containing compound, more specifically, a compound comprising one or more of cerium, lanthanum, or praseodymium. The inlet and the outlet are adapted to be closed during transport and storage. The container is adapted to be sealed for long term disposal after exposure to an aqueous solution containing arsenic.