Refining

Refining of bismuth

Refining of metals

Refining of noble group metals

Refining recrystallized grain size in aluminum alloys

Reinforced jacket crown and method of construction

Rejuvenation of waste silver-laden solutions

Removal and recovery of silver from waste stream

Removal of boron and fluoride from water

Removal of dissolved copper from aqueous solution also containin

Removal of mercury from a combustion gas stream and apparatus

Removal of mercury from process streams

Removal of mercury from waste materials

Removal of metal soaps from hydrogenated fatty products

Removal of sulfur-containing impurities from volatile metal...

Removal of zinc from phosphating process sludges

Removing heavy metal ions from water

Replaceable core silver recovery equipment and method of making

Resin-in-leach process to recover nickel and/or cobalt in...

Resins for separating heavy metals consisting of thiourea-group-