Wednesday, December 8, 2010
Rare Earth Recovery Enthusiasm
The recent drum beating over Chin’s so called monopoly on rare earths is amusing. High prices have now encouraged the world’s miners to dust off those old assay sheets to see just how much they have been throwing out all these years.
Here Toshiba is taking note of the secondary content in its uranium ores. It is apparently not insignificant.
My point is that a flood of rare earths are a few recovery circuits away at a lot of mines unless I miss my calculation. This is a particular example and it is not insignificant.
Toshiba Mulls Getting Rare Earth Metals From Uranium
It’s the nuclear option.
Toshiba has developed a technique to recover rare earth materials and rare metals from a solution from which uranium has been extracted.
The technique revolves around recovering dysprosium and neodymium from liquids via a fused-salt electrolysis method. The company will conduct field tests of the technology in
with help from Japan Oil, Gas and Metals National Corporation. Kazakhstan
If the new technology becomes widely used at uranium mines in
it will recover enough amounts of rare earth materials to provide about 5% of
the rare earth materials that are used for rare-earth magnets in ,
the company said. Japan
Rare earth elements -- which are used in the magnets in electric vehicle motors -- are all over the headlines these days, thanks to the veiled threats from the Chinese government to limit exports.
mines around 97 percent of the 17 rare earth elements. In 2009, export quotas
sat at approximately 50,000 tons. This year, China dropped it to 30,000 tons and
further cuts slated to take effect next year could drop it to 24,000 tons. Both
the expected shortages and the continued uncertainty are worrisome. China
“This is an immediate concern,” Molycorp CEO Mark Smith told Greentech Media in an interview. “A lot of people we are signing long-term agreements with are very tired of not knowing day-to-day. You have no idea what to expect.”
Molycorp's stock has exploded since then.
Japan, in particular, has been active in finding ways to get around
's current monopoly on the
supply of materials. Both Mitsubishi and the University of Tokyo are studying magnet recycling.
(In a separate effort, China
is examining how to recycle nickel, which is not a rare earth element but is a
commodity that fluctuates in price, for use in its hybrids.) Others, like
NovaTorque, have come up with electric motors that don't require rare earth
For more on Toshiba's efforts, please go to TechOn.