Title:
THREE-DIMENSIONAL FLOW-THROUGH ELECTRODE AND ELECTROCHEMICAL CELL
Document Type and Number:
WIPO Patent Application WO2004079840
Kind Code:
A3
Abstract:
A three-dimensional flow-through electrode includes an efficient current feeding mechanism including current feeders (2) comprising rods of conductive material, such as graphite, which are inserted at predetermined spacing into a flow-through electrode (1), such as a block of graphite felt. The current feeders are appropriately spaced throughout the electrode to allow for efficient current distribution. The large surface area provided by the flow-through electrode makes it possible to expose solutions or gases to relatively large areas of electrical charges, intituting electrical chemical reactions. A number of electrolytic chemical processes using the electrolytic cells include water treatment, chemical processing and production, hydro-metallurgical applications, and environmental clean-up. A method to replace the use of cyanide in gold and silver processing operations is also provided.
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Inventors:
LARSON ARDEN L
Application Number:
PCT/US2004/005902
Publication Date:
October 28, 2004
Filing Date:
February 27, 2004
Export Citation:
Assignee:
EVAT INC (US)
International Classes:
C02F1/461; C22B3/02; C22B3/04; C25B9/00; C25B9/04; C25B11/00; C25B11/03; C25B11/12; C25C7/02; C02F1/467; C02F1/76; (IPC1-7): C25B11/00; C02F1/461; C25C7/00
Foreign References:
| US4278521A | 1981-07-14 | |||
| US5770037A | 1998-06-23 | |||
| US4263118A | 1981-04-21 | |||
| US3994789A | 1976-11-30 | |||
| US3840365A | 1974-10-08 |
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