Chemistry: electrical and wave energy – Processes and products
Patent
1992-08-25
1993-07-27
Niebling, John
Chemistry: electrical and wave energy
Processes and products
204104, C25B 116, C25B 122
Patent
active
052307794
ABSTRACT:
An electrochemical process for the production of sulphuric acid and sodium hydroxide by the electrolysis of an aqueous solution of sodium sulphate in which the concentration of the aqueous sodium sulphate solution which is electrolysed is greater than that of a saturated solution of sodium sulphate under neutral conditions and at the temperature employed.
The process may be effected in a two-compartment electrolytic cell comprising an anode compartment and a cathode compartment separated by a cation-exchange membrane.
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"The Electrolytic Production of Acid and Alkali from Sodium Sulfate Solutions", by Harold V. Atwell et al., vol. 15, No. 6, Jun., 1923, Industrial and Engineering Chemistry, pp. 617-620.
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New Materials and New Processes, vol. 1, 1981, pp. 284-288.
Ion-Exchange Membranes, D. S. Fleet, 1981, pp. 195-207.
Jorissen et al., "The Behaviour of Ion Exchange Membranes in Electrolysis and Electrodialysis of Sodium Sulphate", Journal of Applied Electrochemistry 21 (1991) pp. 869-876.
Igoe Patrick J.
Imperial Chemical Industries plc
Niebling John
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