Method and apparatus for the continuous recovery of...

Details Method and apparatus for the continuous recovery of... Method and apparatus for the continuous recovery of...

F - Mech Eng,Light,Heat,Weapons

27

B

39/105, 53/351

F27B 3/04 (2006.01) C22B 25/02 (2006.01)

Patent

CA 1126508

Abstract of the Disclosure A method and apparatus are provided for the continuous recovery of a heavy metal phase from an ore concentrate which comprises melting an ore concentrate containing a mixture of metal silicates. comprising iron silicate and a silicate of a metal to be recovered, in a neutral-to-slightly-reducing atmos- phere and reducing the melt in a single stage with a reducing gas at a reducing temperature, and at a reduction potential of the reducing gas, such that thermodynamic co-reduction of iron silicate to iron is avoided; the method is especially suited for the continuous recovery of tin, low in iron, and permits the ready use of ores having a high iron content in the production of tin.

312913

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