Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing nonmetal element
Reexamination Certificate
2006-10-31
2006-10-31
Phasge, Arun S. (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing nonmetal element
C205S516000, C205S536000, C205S537000
Reexamination Certificate
active
07128824
ABSTRACT:
A method for the electrolysis of aqueous solutions of hydrogen chloride in order to produce chlorine, characterized in that the following process parameters are maintained for initial operation:the anode half-element is filled with a 5 to 20% strength by weight hydrochloric acid,the concentration of the hydrochloric acid is more than 5% by weight during initial operation,the volumetric flow of the hydrochloric acid through the anode half-element is set in such a way that, at the start of electrolysis, the velocity of the hydrochloric acid in the anode space is from 0.05 cm/s to 0.15 cm/s,the electrolysis is started with a current density of 0.5 to 2 kA/m2, and the current density is then increased continuously or discontinuously until the desired current density is reached.
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patent: 0785294 (1997-07-01), None
Bulan Andreas
Gestermann Fritz
Grossholz Michael
Hansen Walter
Pinter Hans-Dieter
Bayer MaterialScience AG
Connolly Bove & Lodge & Hutz LLP
Phasge Arun S,.
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