Search U.S. government technical reports digitized or harvested by TRAIL.
Pilot-plant investigations :matte smelting of Chamberlain, S. Dak., Manganese ore
Beneficiation of scheelite ore from the Sangdong Mine, Korea
An investigation of some variables in the treatment of scheelite with soda ash
Flotation of unoxidized maganiferous material from the Cuyuna Range, Minn.
Selective flotation of fine-grained lead-zinc sulfides from Idaho and Washington