Process for preparing sodium alkoxides

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United States of America Patent

PATENT NO 11629415
APP PUB NO 20210301407A1
SERIAL NO

17207862

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Abstract

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A process for electrochemical preparation of sodium alkoxide is performed in an electrolysis cell having three chambers, wherein the middle chamber is separated from the cathode chamber by a solid-state electrolyte permeable to sodium ions, and from the anode chamber by a diffusion barrier. The geometry of the electrolysis cell protects the solid-state electrolyte permeable to sodium ions from acidic destruction by the pH of the anolyte that falls in the course of electrolysis. The anolyte used in the process is a brine also comprising carbonates and/or hydrogencarbonates, as well as NaCl. The process solves the problem that CO2 from these carbonates and/or hydrogencarbonates forms in the electrolysis cell during the electrolysis of this brine obtained from pretreatment. The process prevents the formation of a gas bubble in the electrolysis cell that disrupts electrolysis and reduces the contamination of the chlorine with CO2.

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Patent Owner(s)

Patent OwnerAddress
EVONIK OPERATIONS GMBHRELLINGHAUSER STRASSE 1-11 45128 ESSEN 45128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gärtner, Felix Haltern am See, DE 9 10
Horn, Michael Niederkassel, DE 158 2303
Reinsberg, Philip Heinrich Bonn, DE 10 2
Teufert, Rüdiger Cologne, DE 3 0

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