pyrometallurgy

[pahy-ruh-met-l-ur-jee]
noun
the process or technique of refining ores with heat so as to accelerate chemical reactions or to melt the metallic or nonmetallic content.

Origin:
1905–10; pyro- + metallurgy

pyrometallurgical, adjective
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World English Dictionary
pyrometallurgy (ˌpaɪrəʊmɛˈtælədʒɪ, -ˈmɛtəˌlɜːdʒɪ)
 
n
the branch of metallurgy involving processes performed at high temperatures, including sintering, roasting, smelting, casting, refining, alloying, and heat treatment

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Example sentences
Pyrometallurgy involves high-temperature processes such as fire refining, smelting, or roasting.
Includes the disciplines of hydrometallurgy and pyrometallurgy.
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