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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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1982-05-10
Fremgangsmaade til udvinding af kobber nikkel kobolt molybdaen eller blandinger af disse metaller fra dybhavsmangannoduler
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1980-10-06
Fremgangsmåde ved ekstraktion af kobber, nikkel, kobolt og molybdæn fra dybhavsmangannoduler.
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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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Brooks et al.
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Processing manganiferous sea nodules
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1909-03-16
Process of extracting gold, platinum, silver, nickel, copper. &c.
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1979-05-22
Gold recovery by adsorption from ozonized cyanidation liquor
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1963-10-22
Process for separating cobalt and nickel from ammoniacal solutions
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1990
Leaching of roast-reduced polymetallic sea nodules to optimise the recoveries of copper, nickel and cobalt
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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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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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1929-10-01
Aufarbeitung von Salpetererden