Title:
CHEMICAL SYSTEMS AND METHODS FOR OPERATING AN ELECTROCHEMICAL CELL WITH AN ACIDIC ANOLYTE
Document Type and Number:
WIPO Patent Application WO/2012/048032
Kind Code:
A3
Abstract:
An electrochemical cell (50) having a cation-conductive ceramic membrane (56) and an acidic anolyte. Generally, the cell (50) includes an anolyte compartment (52) and a catholyte compartment (54) that are separated by a cation-conductive membrane (56). A diffusion barrier (64) is disposed in the anolyte compartment (52) between the membrane (56) and an anode (58). In some cases, a catholyte is channeled into a space between the barrier (64) and the membrane (56). In other cases, a chemical that maintains an acceptably high pH adjacent the membrane (56) is channeled between the barrier (64) and the membrane (56). In still other cases, some of the catholyte is channeled between the barrier (64) and the membrane (56) while another portion of the catholyte is channeled between the barrier (64) and the anode (58). In each case, the barrier (64) and the chemicals channeled between the barrier (64) and the membrane (56) help maintain the pH of the liquid contacting the anolyte side of the membrane (56) at an acceptably high level.
Inventors:
BHAVARAJU SAI (US)
Application Number:
PCT/US2011/054968
Publication Date:
July 19, 2012
Filing Date:
October 05, 2011
Export Citation:
Assignee:
CERAMATEC INC (US)
BHAVARAJU SAI (US)
BHAVARAJU SAI (US)
International Classes:
C25B9/19
Foreign References:
| US20100044242A1 | 2010-02-25 | |||
| US5709789A | 1998-01-20 | |||
| US20090314652A1 | 2009-12-24 |
Attorney, Agent or Firm:
FONDA, David (Salt Lake City, UT, US)
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