...compound was heated to 180° C. The methods hitherto employed for extracting the metal from its ores involved concentrating the nickel either as a sulphide...(speise)', followed by either dry or wet treatment ; and the metal had to be refined, mainly with a view to separate it from associated carbon. In 1889,...

...to state that Chronstet isolated the metal in the year 1751, and that Bergnian the Metai. confirme(j his discovery in 1774. The methods hitherto employed...methods only have been employed. The metallic nickel lias always to be subjected to a process of refining, mainly, as in the case of cast iron, with a view...

...history of the metallurgy of nickel, but it may be well to sbite that Chronstet isolated the metal in the year 1751, and that Bergman confirmed his discovery...followed by either " dry " or " wet " treatment. In the I. II. Per cent. Per cent. Nickel . 40-938 31 -35 Copper . Iron and (Al,03) 45714 48 86 0-81 0-405...

...history of the metallurgy of nickel, but it may be well to state that Chronstet isolated the metal in the year 1751, and that Bergman confirmed his discovery...the case of cast iron, with a view to separate it from associated carbon. As regards the process which forms the subject of this Paper a few brief historical...

...compound was heated to 180° C. The methods hitherto employed for extracting the metal from its ores involved concentrating the nickel either as a sulphide...(speise), followed by either dry or wet treatment ; and the metal had to be refined, mainly with a view to separate it from associated carbon. In 1889...