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US3971652A
|
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Ammoniacal extraction of copper from metallic materials
|
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RO67593B1
|
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Process for preparing a briquetted oxidic material for shaft furnaces
|
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US3768792A
|
|
Condensation of metal vapour
|
|
IL35718D0
|
|
A method for the operation of a zinc or zinc/lead blast furnace
|
|
IL32295D0
|
|
Blast furnace operation
|
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ES268722A1
|
|
A procedure to produce zinc based on zinc concentrates containing arsenic (Machine-translation by Google Translate, not legally binding)
|
|
ES240414A1
|
|
Improvements in the methods of fusion of zinc factory materials (Machine-translation by Google Translate, not legally binding)
|
|
ES239487A1
|
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Improvements in or relative to refrigerating provisions for cast lead (Machine-translation by Google Translate, not legally binding)
|
|
US2932566A
|
|
Blast furnace smelting of zinciferous materials
|
|
US1512734A
|
|
Process of purifying arsenious chloride
|
|
CA864454A
|
|
Purification of zinc
|
|
CA625813A
|
|
Removal of cadmium from zinc
|
|
CA686272A
|
|
Flux addition to slag formed in a zinc blast furnace
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|
CA573394A
|
|
Condensation of metal vapours
|
|
CA664068A
|
|
Treatment of arsenical drosses
|
|
CA561570A
|
|
Smelting of tin
|
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CA563308A
|
|
Purification of zinc
|
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CA850007A
|
|
Zinc blast furnaces
|
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CA561571A
|
|
Smelting of oxide lead and zinc-containing materials
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CA559120A
|
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Rotor device for showering molten metal
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