WHAT IS RARE EARTH?
As
defined by IUPC (International Union of Pure and Applied Chemistry): Set of
seventeen chemical elements in the periodic table, specifically the fifteen
lanthanides plus scandium and yttrium.
Figure 1: Periodic Table of the Elements |
Scandium
and yttrium are considered rare earth elements since they tend to occur in the
same
ore deposits as the lanthanides and exhibit similar chemical properties. They
range in crustal
abundance from cerium, the most abundant, at 60 parts per
million, which is in fact more abundant than nickel or copper, to thulium and
lutetium, the least abundant Rare Earth element at about 0.5 parts per million.
WHERE THEY CAME FROM?
Rare
Earths are not found as free metals in the earth’s crust, rather within a mixed
‘cocktail’ of Rare Earth elements that need to be separated for their
individual or combined commercial use. Despite their name, Rare Earths are
relatively abundant in the earth’s crust, however are often of low quality and
rarely presented in economic concentration.
China
currently supplies approximately 95% of the global Rare Earths market. More
than 70% of the supply of light Rare Earths is supplied from one mine in China.
Mt Weld, with its very high grade contains light Rare Earths and is also high
in Europium, a heavy Rare Earth.
ABOUT LYNAS
Lynas
Corporation, Ltd. is an Australian rare earths mining company, listed on the
Australian Securities Exchange as an S&P/ASX 200 company. It has two major
operations: a mining and concentration plant at Mount Weld, Western Australia,
and a refining facility now under construction at Kuantan, Malaysia.
The
LAMP (Lynas Advanced Materials Plant) at Kuantan is being built with support from
the Malaysian government, with "pioneer" status including a 12-year
tax exemption. The overall site construction progress at the end of Q4 2011 was
91% complete. Systematic completion of test packs and pre-commissioning is in
progress and approximately 33% completed.
The remaining construction work is actively being coordinated and
executed. The ore processing will annually yield several thousand tonnes of
waste product (Gypsum) which contains low concentrations of thorium, a
radioactive element. Concerns regarding the short and long term storage of this
waste material, politicised in the context of forthcoming parliamentary
elections, fuelled widespread protests in Malaysia in 2011.
Pros
and Cons list of having Rare Earth Industries in Malaysia will be include in
Part 2.
Sources:
1. Neil. G Conelly, Richard M. Harshorn, Ture Damhus and Alan T. Hutton. "Nomenclature of Inorganic Chemistry - IUPAC RECOMMENDATIONS 2005 "
2. What Are rare Earth. Retrieved April 09, 2012. From http://www.lynascorp.com/page.asp?category_id=1&page_id=1
Sources:
1. Neil. G Conelly, Richard M. Harshorn, Ture Damhus and Alan T. Hutton. "Nomenclature of Inorganic Chemistry - IUPAC RECOMMENDATIONS 2005 "
2. What Are rare Earth. Retrieved April 09, 2012. From http://www.lynascorp.com/page.asp?category_id=1&page_id=1
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