Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing nonmetal element
Patent
1997-06-16
1999-07-27
Phasge, Arun S.
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing nonmetal element
205619, 205763, 205765, 204245, 204246, C25B 124, C25B 1304, C25B 900
Patent
active
059284897
ABSTRACT:
A low temperature method and apparatus for removing halides from relatively low temperature gas mixtures (below about 150.degree. C.) using an electrochemical cell provided with inert electrodes and an electrolyte which will provide anions compatible with the halide anions formed at the anode. The electrolyte is elected to provide inert stable cations at the temperatures encountered. The gas mixture is passed by the cathode where the halides are converted to X.sup.-. The anions migrate to the anode where they are converted to a stable gaseous form at much greater concentration levels. Current flow may be effected by utilizing an external source of electrical energy or by passing a reducing gas such as hydrogen past the anode.
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The Recovery of Chlorine from Hydrogen Chloride, Part 1: New Method Using a Molten Salt as the Electrolyte, S. Yoshizawa, Z. Takehara, Y. Ito and K. Oka, Journal of Applied Electrochemistry 1 (1971) 245-251.
The Recovery of Chlorine From By-Product Hydrogen Chloride, Part 2: Molten Metal Cathode Method S. Yoshizawa, A. Takehara, Y. Ito and K. Oka, Journal of Applied Electrochemistry 1 (1971) 253-259.
Georgia Tech Research Corp.
Phasge Arun S,.
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