F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
307/30
F27B 3/08 (2006.01)
Patent
CA 1126317
ABSTRACT OF THE DISCLOSURE A furnace is disclosed for extracting metals of rela- tively high volatility from compounds containing oxides of metals. The furnace provides uniform heating for the oxides in solid block form together with temperature and pressure control so that the dross does not melt. The furnace includes a lower portion having an insulated lining, an upper bell shaped portion joined to the lower portion to form an enclosed sealed chamber, the upper portion forming a condensation surface for metals, means for ex- tracting heat from the upper portion, and means for controlling pressure within the sealed chamber. The improvement comprises an electrical heating conductor within the lower portion spaced apart from the insulated lining, the heating conductor having spaces to hold the compounds in a solid compressed form and transfer sub- stantially uniform heat to the compounds in the spaces
332410
Bettanini Carlo
Enrici Margherita
Ravelli Santo E.
Zanier Stelio
Fetherstonhaugh & Co.
Societa Italiana Per Il Magnesio E. Leghe Di Magnesio S.p.a.
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