Metallurgy autoclaving

The preferred method for synthesis of complex carbides is the powder metallurgy technique. Hot-pressed powder mixtures must be subjected to prolonged annealing treatments. If low melting or volatile components are present, autoclaves are used. 

McCreadie, H., Jambor, J.L., Blowes, D.W. (1998) Geochemical behavior of autoclave-produced ferric arsenates jarosite in a gold-mine tailings impoundment, in Waste Characterization and Treatment (ed. W., Petruk), Society for Mining, Metallurgy, and Exploration, Littleton, Colorado, pp. 61-78. 

Although there is no cyanamide production In the United States, by far the larger production of the American Cyana-mid Company s plant at Niagara Falls, Canada, enters this country either as cyanamide or crude cyanide. The cyanamide is consumed directly In mixed fertilizers where It can be used in proportions of only about 60 pounds of cyanamide to a ton of fertilizer, or it is autoclaved at the Ammo-Phos Works, Warners, New Jersey, for the production of ammonia for ammonium phosphate. The crude cyanide is used in metallurgy, in the production of hydrocyanic acid for fumigation and the yellow and blue prusslates at the New Jersey plant. 

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