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1994-09-14
金属の回収方法
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1974-09-01
Un procedimiento para extraer niquel, cobre, cobalto y mo- libdeno de minerales, por ejemplo , de modulos de manganeso.
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DK144682B
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1982-05-10
Fremgangsmaade til udvinding af kobber nikkel kobolt molybdaen eller blandinger af disse metaller fra dybhavsmangannoduler
DK142291B
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1980-10-06
Fremgangsmåde ved ekstraktion af kobber, nikkel, kobolt og molybdæn fra dybhavsmangannoduler.
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1981-10-01
Verfahren zur Gewinnung von Nickel und Kupfer aus Manganknollen
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1985-12-17
Leaching refractory gold ores
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1954-12-28
Recovery of nickel and copper values from copper ammonium carbonate leach solutions
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1979-08-14
Process for leaching raw sea nodules
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1909-03-16
Process of extracting gold, platinum, silver, nickel, copper. &c.
Jana et al.
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Leaching of roast-reduced polymetallic sea nodules to optimise the recoveries of copper, nickel and cobalt
Lorenzen
1992
An electrochemical study of the effect of potential on the selective dissolution of base metal sulphides in sulphuric acid
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1927-11-08
Treatment of ores for the extraction of values
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1957-01-22
Method of concentrating metal values from sulfur solutions
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GB1516161A
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1978-06-28
Recovery of base metals from manganese-containing ores
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1985-08-08
Verfahren zum Gewinnen der Elemente Brom und Platin
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1932-02-12
Verfahren zur Herstellung von Natronsalpeter und Chlorammonium
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1920-01-13
Treating manganese-silver ores
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1979-04-26
Verfahren zur Gewinnung von Kupfer, Nickel, Kobalt und Molybdän aus Manganknollen
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1929-10-01
Aufarbeitung von Salpetererden