Elevated pressure operation in the cuprion process
Elution process and apparatus and extraction of particulate mate
Enrichment of minerals by flotation and collector agents employe
Exploitation of copper, nickel and cobalt by treating manganifer
Extraction and recovery of gold
Extraction of cobalt, copper and nickel values from ammoniacal s
Extraction of copper from an ammoniacal copper solution
Extraction of copper values from aqueous solution
Extraction of copper, nickel and cobalt using alkylaromatic sulf
Extraction of Cu(II), Fe(III), Ni(II), Co(II), Cd(II), Zn(II), C
Extraction of metal values from manganese nodules
Extraction of precious metals from ores and other precious metal