Preparation of monotectic alloys having a controlled microstruct
Preparation of rare earth and other metal alloys containing alum
Preparation of ultra-pure silver metal
Pressurized reaction of refractory ores with heat recovery
Pretreatment of chromium-bearing metal scrap to remove chromium
Pretreatment of chromium-bearing metal scrap to remove chromium
Procedure for the preparation of refined materials containing Si
Process and apparatus for absorption of zinc vapour in molten le
Process and apparatus for extraction of metal values from metal
Process and apparatus for recovering metal values from ore
Process and apparatus for recovery of non-ferrous metals...
Process and apparatus for separating mercury and red phosphorus
Process and apparatus for the continuous refining of blister...
Process and apparatus for treating a liquid with a gas
Process and apparatus for treating molten aluminum to add hydrog
Process and device for producing a laminated material for slide
Process and device for purification of aluminum by segregation
Process and device for removal of arsenic, tin & artimony from c
Process and solution for transforming insoluble mercury metal in
Process and system for recovering zinc and other metal vapors fr