pyrometallurgy

As nouns the difference between hydrometallurgy and pyrometallurgy

is that hydrometallurgy is the field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores, concentrates, and recycled or residual materials while pyrometallurgy is any process that uses high temperatures to transform either metals or their ores.

As nouns the difference between smelting and pyrometallurgy

is that smelting is the process of melting or fusion, especially to extract a metal from its ore while pyrometallurgy is any process that uses high temperatures to transform either metals or their ores.

As a verb smelting

is present participle of lang=en.

is likely misspelled.

has no English definition.

As a noun pyrometallurgy

is any process that uses high temperatures to transform either metals or their ores.

As nouns the difference between pyrometallurgy and electrometallurgy

is that pyrometallurgy is any process that uses high temperatures to transform either metals or their ores while electrometallurgy is the deposit of a metal coating on a prepared surface by electrochemical means, as in electroplating and electrotyping.