Process for removing water from alkali metal amalgam
AssigneeBASF SE
InventorsMarc Martin, Günther Huber, Michael Lutz, Wolfgang Kanther, Josef Guth, Holger Friedrich
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Abstract
The invention relates to a process for removing small amounts of water and possible further constituents from alkali metal amalgam, wherein the alkali metal amalgam is brought into contact with an element which is insoluble in mercury and catalyzes the reaction of water with the alkali metal amalgam and the possible further constituents to form hydroxides and hydrogen.
Claims17
A process for removing small amounts of water in the range from 0.3 to 5.0 ppm and possible further constituents from alkali metal amalgam resulting from a chloralkali electrolysis, wherein the alkali metal amalgam is brought into contact with a catalytically active element which is insoluble in mercury and catalyzes the reaction of water with the alkali metal amalgam and the possible further constituents to form hydroxides and hydrogen;
- wherein the catalytically active element is selected from the group consisting of iron, nickel, cobalt, titanium, chromium, molybdenum, steels inert against mercury, tungsten carbide and graphite;
- and wherein the alkali metal amalgam is subsequently passed to an electrolysis.
Dependencies are inferred from the claim text.