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