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FR2483956A1
(fr)
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Procede pour separer des metaux volatils d'une matiere contenant des oxydes metalliques
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BE558295A
(en, 2012)
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US1961424A
(en)
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Zinc refining process
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PT1373581E
(pt)
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Método de fundição de redução num forno em forma de chaminé com recuperação de metais secundários voláteis
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US669410A
(en)
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Art of extracting zinc from ores.
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US1687277A
(en)
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Method and apparatus for purifying metals
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US2182129A
(en)
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Metallurgy
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US2144942A
(en)
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Metallurgy of zinc
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US2207779A
(en)
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Process and apparatus for zinc smelting
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US677263A
(en)
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Process of roasting mixed sulfid ores.
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US1985902A
(en)
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Concentrate burner
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BE508600A
(en, 2012)
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US198283A
(en)
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Improvement in shaft-furnaces for smelting tailings and condensing mercury |
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BE548475A
(en, 2012)
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LU87961A1
(fr)
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Procede et dispositif pour le traitement pyrometallurgique d'une matiere pulverulente contenant un compose d'un ou de plusieurs metaux
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US841212A
(en)
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Combined gas-generator and smelter.
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BE495733A
(en, 2012)
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US2912322A
(en)
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Transfer of zinc vapour from a furnace to a condenser
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US178998A
(en)
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Improvement in processes for extracting zinc from its ores |
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BE486977A
(en, 2012)
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US805836A
(en)
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Method of producing iron.
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US834240A
(en)
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Process of smelting.
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BE527545A
(en, 2012)
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US833679A
(en)
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Process of treating substances by the aid of heat.
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US236562A
(en)
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George dtteyee |