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US 6,294,070 B1Granted
Process for electrolytically producing metal-amalgam
AssigneeDegussa-Huels Aktiengesellschaft
InventorsCarl Heinz Hamann, Peter Schmittinger, Joerg Helling
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Abstract
A process for electrolytically producing an amalgam from metal salt, using an anion exchanger membrane. The chlorine-free process provides amalgam produced from metal salt and having a high degree of purity, and ensures advantageous parameters, such as a low cell voltage and high current efficiencies.
Claims20
A process for producing a metal-mercury amalgam, comprising:
- applying an electric current to an electrolysis cell comprising:
- a cathode comprising mercury metal,
- an anode, and
- an anionic exchange membrane between the cathode and the anode, thereby producing a metal-amalgam at the cathode.
1 more element
An electrolysis cell for producing mercury amalgams, comprising:
- a cathode comprising mercury metal,
- an anode, and
- an anionic exchange membrane between the cathode and the anode dividing the cell into cathode and anode compartments which are adapted to be filled with a metal salt solution, wherein the metal of the salt upon reduction, at the cathode, amalgamates with said metal.
Dependencies are inferred from the claim text.