Refining process based on top-blowing with oxygen

Refining process for removing antimony from lead bullion

Reforming of higher hydrocarbons for metal oxide reduction

Refractory porous plug

Reinforced foamed metal

Relating to the formation of metal alkoxides and metal powders b

Removal of alkali metals and alkaline earth metals from molten a

Removal of arsenic, antimony and bismuth from molten copper with

Removal of fine particles from molten metal

Removal of impurities from molten aluminium

Removal of lithium nitride from lithium metal

Removal of magnesium from an aluminum alloy

Removal of mercury from sludge by heating and condensing

Removal of nitrogen from iron

Removal of sulphur from molten metal

Removal of tin from molten iron by chlorination, using oxygen to

Removing inclusions from molten metal

Removing phosphorus from iron

Renitrogenation of basic-oxygen steels during decarburization

Replacement of coke in plasma-fired cupola