Titanium Recycling - Basic Information
Basic Information(Ti): Titanium is a chemical element with the symbol Ti and atomic number 22. Sometimes called the "space age metal", it has a low density and is a strong, lustrous, corrosion-resistant (including to sea water, aqua regia and chlorine) transition metal with a silver color.
Extraction of Titanium(Ti)
Even if the present extraction of titanium by the Kroll Process is relatively
energy intensive as compared to other manufacturing metals, the energy and
waste savings achieved by the use of titanium represent a payback not available
from less corrosion resistant, heavier, less strong and environmentally less
friendly materials. The development of reduced energy extraction processes
continues, most notably with the FFC electrolytic de oxidation process, which
not only consumes less energy, but is also a more environmentally friendly process
overall.
Production of Titanium
Hot working of titanium metal from ingot or billet follows similar procedures
to other metals, but at typically lower temperatures than for example steels or
nickel based alloys. Energy consumption per weight of material processed is
overall of the same order as for steel, but because of its lower density the
volume of titanium product yielded is typically 30-40% greater.
Reclamation and Recycling of Titanium
Titanium scrap generated in manufacturing processes and in equipment
fabrication is fully recyclable. Substantial investment by titanium producers
in cold hearth and other remelting furnaces has greatly improved the economy of
recycling and made possible the direct use of the widest possible range of
scrap forms. The sustained value of life expired titanium parts and systems
should always be taken into account in life cycle cost considerations. The
probability that titanium process plant and other equipment will remain both
clean and free of corrosion means that re-use of the whole plant or of elements
of the plant, e.g. condenser tubing, may be considered, and offer further
economies in major equipment production and procurement cycles.
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