Dump leaching of copper
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
Flotation recovery of lead, silver and gold as sulfides from ele
Flotation separation of iron oxide from undigested matte particl
Fly ash collection
Foam injection leaching process for fragmented ore
Gold recovery by adsorption from ozonized cyanidation liquor
Gold recovery by sulhydric-fatty acid flotation as applied to go
Heap leaching agglomeration and detoxification