- transformations, such as the
reduction of ore to
metal (for
which see
Refining (metallurgy)). The
refining of
liquids is
often accomplished by
distillation or fractionation;...
-
modern method of
liquid extraction for
refining crude oil, the
Edeleanu process. This
increased the
refining efficiency compared to pure
fractional distillation...
-
Petroleum Company Ltd.
Trinidad Petroleum Holdings also owns
Guaracara Refining Company Ltd,
which operates the nation's only
petroleum refinery. It also...
- In
common usage, salt is a
mineral composed primarily of
sodium chloride (NaCl). When used in food,
especially in
granulated form, it is more formally...
-
Refining is the
removal of
bubbles from the
molten gl****.
Alternatively the term "Fining" is used, in this case, "
refining"
refers to the
chemical processes...
-
refineries refining metals such as alumina, copper, gold, lead, nickel, silver, uranium, zinc,
magnesium and
cobalt Iron
refining, a
stage of
refining pig iron...
- In metallurgy,
refining consists of
purifying an
impure metal. It is to be
distinguished from
other processes such as
smelting and
calcining in that those...
-
Yanbu (400,000 bbl/d (64,000 m3/d)) List of
international refining ventures:
Fujian Refining and
Petrochemical Co. (FRPC), People's
Republic of
China Sinopec...
-
markets via pipeline.
Western Refining owns and
operates a
wholesale division that
works in
conjunction with the
refining operations.
Through the refineries...
-
processed using pyrometallurgical techniques to
produce a
matte for
further refining.
Recent advances in
hydrometallurgical techniques result in significantly...