Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Utilizing fused bath
Patent
1995-04-12
1996-10-15
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Utilizing fused bath
205498, 205404, 423498, C25B 124, C25C 304
Patent
active
055650805
ABSTRACT:
In accordance with the present invention, there is now provided a process for the production an anhydrous magnesium chloride-containing melt or electrolyte containing very low levels of MgO, typically less than 0.2% by weight MgO, directly from hydrated magnesium chloride feeds. More specifically, the process comprises the steps of a) feeding hydrated magnesium chloride in a furnace containing molten electrolyte from a magnesium electrolysis cell to produce a melt, the temperature in the furnace being maintained between 450.degree. and 65.degree. C.; b) simultaneously injecting an anhydrous hydrogen chloride-containing gas into the melt in an amount below the stoichiometric requirement of 2 moles of HCl per mole of magnesium chloride produced from hydrated magnesium chloride, and agitating the melt to keep any magnesium oxide in suspension in them melt, to dehydrate the magnesium chloride and react with the MgO in the melt so that the melt contains not more than 0.2% MgO on a 100% magnesium chloride equivalent basis, to form an enriched anhydrous magnesium chloride containing melt.
REFERENCES:
patent: 3067006 (1962-12-01), Ebert et al.
patent: 3336107 (1967-08-01), Kimberlin, Jr.
patent: 3742100 (1973-06-01), Boyum et al.
patent: 3779870 (1973-12-01), Gudmundsen et al.
patent: 3953574 (1976-04-01), Toomey
patent: 4076602 (1978-02-01), Wheeler
patent: 4083943 (1978-04-01), Kinosz et al.
patent: 4269816 (1981-05-01), Shackleton et al.
patent: 4302433 (1981-11-01), Stein
patent: 4308116 (1981-12-01), Andreassen et al.
patent: 4510029 (1985-04-01), Neelameggham et al.
patent: 4560449 (1985-12-01), Sivilotti
patent: 4981674 (1991-01-01), Peacey
patent: 5089094 (1992-02-01), Ogasawara et al.
Kirk-Othmer Encyclopedia, vol. 14, pp. 570-615. No date available.
Database WPI, Class 28, Accession No. 74-06868 (SU 380,746) Aug. 1973.
Kennedy Mark W.
Peacey John G.
Walker Thomas P.
Gorgos Kathryn
Noranda Metallurgy Inc.
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