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GB116943A
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Process for Separating Metals from their Ores.
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GB191410061A
|
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Improvements in Electric Furnaces.
|
|
AU562912B
|
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Method of and apparatus for roasting' zinc blende
|
|
GB191215460A
|
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An Improved Method of and Apparatus for Roasting Zinc Blende.
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|
CA141906A
|
|
Metallurgy of zinc
|
|
CA146084A
|
|
Method of roasting zinc blende
|
|
GB191119305A
|
|
Improvements in Electric Furnaces.
|
|
GB191202669A
|
|
Improvements in Condensers for Zinc Vapours.
|
|
US1057669A
|
|
Electric furnace for iron and steel.
|
|
US1132684A
|
|
Roasting of compounds or ores containing zinc.
|
|
GB191013304A
|
|
Improvements in Casting Metals of High Melting Point.
|
|
CA133604A
|
|
Metallurgy of ores and compounds of zinc
|
|
CA125651A
|
|
Electric furnace and method of operating the same
|
|
US948343A
|
|
Electric furnace and method of operating the same.
|
|
GB190601101A
|
|
Improvements in Method of Charging Retorts, Muffles, Furnaces and the like and in Apparatus therefor.
|
|
GB190509877A
|
|
Improvements in, and relating to, the Manufacture of Zinc Retorts and other Fireclay Metallurgical Vessels.
|
|
CA428299A
|
|
Wet magnetic separation method
|
|
CA328231A
|
|
Zinc roasting apparatus
|
|
CA428300A
|
|
Attrition mill
|
