Why All the Fuss over Rare Earths?
by ilene - October 2nd, 2009 9:06 pm
Why All the Fuss over Rare Earths?
Courtesy of Doug Hornig,Casey’s International Speculator
Rare earth elements (REEs) have been the mystery metals of the mining world for years. Now, suddenly, everyone’s heard about them.
Before we delve into the reasons behind all the publicity, here’s the basic skinny on REEs: One, they are rare, at least sort of. Two, they are indispensable to modern technology. Three, the number of active, dedicated producers is tiny, with more than 90% of the world’s supply coming from China.
If you took high school chemistry, you probably remember the periodic table of the elements. But if you’re like most of us, even if you pulled a 95 on the chem final, you may not recall many of the details today. And there’s a better than even chance you never bothered to memorize the names of the REEs. It’s time to get reacquainted.
They’re generally clustered in a separate grouping at the bottom of the table, are known collectively as the lanthanoids, and these are their names, in order of atomic number (57-70): lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, and ytterbium. Yttrium (39) and lutetium (71) are also sometimes included.
Need to know, point 1: Rarity.
Fact is, we begin with something of a misnomer. These elements are not, strictly speaking, rare. Earth’s crust is full of them. True, they’re not as common as iron, carbon, or silicon, but are about on a par with nickel, copper, and zinc. Even the scarcest is way more abundant than gold, platinum, or palladium.
What is rare about them is that they’re widely dispersed. Very seldom are they found in economically exploitable deposits. Complicating matters further is that there are so many of them, and they clump together. They have to be separated first from the ore and then from each other.
Thus REE production comes primarily from other mines’ byproducts. The miner strips off the metal he’s really after, then sends the REE clusters to a specialty refiner.
Need to know, point 2: Applications.
It’s safe to say that life as we know it would be very different without the REEs. The more our technological accomplishments pile atop one another, the more crucial these metals become. Because of their unique properties, there are generally no substitutes for them.
Of all the REEs, the one people may have…
 Twitter
|
LinkedIn
|
 del.icio.us
|
|
Rare Mineral Security
by ilene - August 25th, 2009 7:10 am
Rare Mineral Security
Courtesy of Michael Panzner of When Giants Fall
As we’ve already seen and are likely to see more of in future, energy security and food security are key concerns. But that’s not the end of it. In a resource-constrained world, efforts to source, preserve, and protect supplies of all sorts of commodities will become increasingly commonplace. In "World Faces Hi-Tech Crunch as China Eyes Ban on Rare Metal Exports," The Telegraph‘s Ambrose Evans-Pritchard highlights one area that’s been getting a lot more attention lately.
Beijing is drawing up plans to prohibit or restrict exports of rare earth metals that are produced only in China and play a vital role in cutting edge technology, from hybrid cars and catalytic converters, to superconductors, and precision-guided weapons.
A draft report by China’s Ministry of Industry and Information Technology has called for a total ban on foreign shipments of terbium, dysprosium, yttrium, thulium, and lutetium. Other metals such as neodymium, europium, cerium, and lanthanum will be restricted to a combined export quota of 35,000 tonnes a year, far below global needs.
China mines over 95pc of the world’s rare earth minerals, mostly in Inner Mongolia. The move to horde reserves is the clearest sign to date that the global struggle for diminishing resources is shifting into a new phase. Countries may find it hard to obtain key materials at any price.
Alistair Stephens, from Australia’s rare metals group Arafura, said his contacts in China had been shown a copy of the draft — `Rare Earths Industry Development Plan 2009-2015’. Any decision will be made by China’s State Council.
“This isn’t about the China holding the world to ransom. They are saying we need these resources to develop our own economy and achieve energy efficiency, so go find your own supplies”, he said.
Mr Stephens said China had put global competitors out of business in the early 1990s by flooding the market, leading to the closure of the biggest US rare earth mine at Mountain Pass in California – now being revived by Molycorp Minerals.
New technologies have since increased the value and strategic importance of these metals, but it will take years for fresh supply to come on stream from deposits in Australia, North America, and South Africa. The rare earth family are hard to find, and harder to extract.
…
|
Twitter
|
LinkedIn
|
del.icio.us
|
|
German
Spanish
French
Italian
Portuguese
Japanese
Korean
Russian
Chinese
Philip R. Davis is a founder Phil's Stock World, a stock and options trading site that teaches the art of options trading to newcomers and devises advanced strategies for expert traders...
Ilene is editor and affiliate program
coordinator for PSW.
