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:
Jun. 02, 2015
Filed:
May. 12, 2012
William W. Carson, Hopkinton, MA (US);
Charles Dale, Morgan Hill, CA (US);
William D. Mcclain, Phoenix, AZ (US);
Robert J. Ritz, Phoenix, AZ (US);
Charles Swenson, Billerica, MA (US);
William W. Carson, Hopkinton, MA (US);
Charles Dale, Morgan Hill, CA (US);
William D. McClain, Phoenix, AZ (US);
Robert J. Ritz, Phoenix, AZ (US);
Charles Swenson, Billerica, MA (US);
General Electric Company, Schenectady, NY (US);
Abstract
An improved process for regenerating ion exchange resin, includes a regeneration step of displacing captured ions from the resin to regenerate its ion-capture functionality, followed by one or more fluid-employing post-regeneration steps such as a fluid displacement or rinse, a fluid transporting or mixing, and a rinse down to quality. To avoid problems of early leakage of weakly held ions such as boron, the post-chemical or postdisplacement steps use water that is essentially free of boron, or otherwise avoid localized contamination in the regenerated resin which is used in bottles or beds (). A two-stage polish may be operated with modified lead/lag bottles. A detector (D) for an indicator condition (conductivity, silica breakthrough) between stages determines when to shift the lag bottle forward, and periodically both bottles are replaced.