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Chlorine evolution in a centrifugal field

Lookup NU author(s): Dr Hua Cheng, Emeritus Professor Keith Scott, Professor Colin Ramshaw


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Intensification of the electrochemical production of chlorine and sodium hydroxide (i.e., the chlor-alkali process) was demonstrated in a centrifugal acceleration field. This intensification was shown by comparing the cell voltages and the anode potentials for a cell operated with and without a centrifugal field applied using the linear sweep voltammetric, galvanostatic and potentiostatic polarizations. Under industrial chlor-alkali electrolysis conditions, a cell voltage reduction of up to 600 mV and an anode potential reduction of up to 360 mV at 600 mA cm-2 were achieved by using a relative acceleration rate of 190 g with an acidic saturated NaCl solution at 80°C. The relationships between the cell performance and relative acceleration rate, for different anode materials, temperature and NaCl concentration are reported.

Publication metadata

Author(s): Cheng H, Scott K, Ramshaw C

Publication type: Article

Publication status: Published

Journal: Journal of Applied Electrochemistry

Year: 2002

Volume: 32

Issue: 7

Pages: 831-838

Print publication date: 01/07/2002

ISSN (print): 0021-891X

ISSN (electronic): 1572-8838

Publisher: Springer


DOI: 10.1023/A:1020170627227


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