Crikey



Crikey Clarifier: what’s all the fuss about rare earths?

Bondi resident Natalie Lowrey was suddenly released without charge on Friday night after five days’ detention in a Malaysian prison. Lowrey, who was born in New Zealand, was arrested last week in Kuantan, Malaysia, for protesting against the processing of rare earths by Australian minerals giant Lynas Corp. We delve into some of the issues surrounding the case.

What are rare earths?

Rare earths are chemical elements found in the earth’s crust that are vital to many modern technologies, including electronics such as speakers, computers, hybrid cars and wind turbines. Rare earths have unique magnetic, luminescent, and electrochemical properties that help technologies perform more efficiently. They are particularly valuable for use in smartphones, and are in high demand.

What is Lynas Corp, and what is it doing in Malaysia?

Lynas Corporation Ltd is an ASX 100 listed company based in Sydney, Australia. It is currently constructing the Lynas Advanced Materials Plant (LAMP), a rare earth processing plant at Gebeng, near Kuantan, Malaysia.

Lynas’ rare earth project has sparked protests in Australia and Malaysia over fears about possible negative health, environmental and economic impacts once the plant begins its operation, as it will produce radioactive material as a waste product. Although the rare earths are extracted in Western Australia, the potentially hazardous processing will take place in Malaysia.

Is there any evidence processing rare earths is dangerous?

Mitsubishi Chemicals Asian Rare Earths, a plant in Bukit Merah, Malaysia, was shut down in the 1992 after at least eight cases of leukaemia and a sudden surge in birth defects and miscarriages in the area. The plant was finally closed after an eight-year battle and is currently undergoing the largest clean-up in the rare earth industry at a cost of US$100 million. Cleaning up requires digging up the entire area of contamination and entombing it inside a mountain.

A spokesperson from Lynas told Crikey: “The Asian Rare Earth plant used the waste from tin mining as its raw material. Lynas raw material contains naturally low levels of thorium, which are 30-40 times lower than rare earth concentrates from tin mine tailings. By all international standards, the Lynas raw material is classified as safe, non-toxic and non-hazardous.”

But Dr David KL Quek, former president of the Malaysia Medical Association, has said:

“Thorium is an acknowledged waste product from the planned Lynas refinery of rare earth ores. Due to the various refining processes thorium will be enriched and concentrated to levels which could reach quantities that are difficult to contain or be safely sequestrated.

“Based on the preliminary Environmental Impact Agency report, thorium residues would lead to a sizeable radioactivity dose of some 62 Becquerel per gram. For 106 tonnes this would be an enormous quantity of radioactive residual thorium.”

Wastes from production will include radioactive thorium and uranium and their radioactive decay products such as radium and radon. Australian authorities have explicitly refused to allow the wastes to be shipped back to Australia for safe disposal.

Why Malaysia?

The Malaysian government has been more open to rare earths processing than the Australian government.

Phua Kai Lit, an associate professor of the Jeffery Cheah School of Medicine and Health Sciences at Monash University in Malaysia, told Crikey: “The Prime Minister, as well as the Chief Minister of the state of Pahang, are both strong supporters of the project. Similarly, political appointees such as the various ministers from ministries involved with the project echo the government’s line. The head of the main regulatory body, the Atomic Energy Licensing Board, also echoes the government’s line.

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  1. Based on the preliminary Environmental Impact Agency report, thorium residues would lead to a sizeable radioactivity dose of some 62 Becquerel per gram. For 106 tonnes this would be an enormous quantity of radioactive residual thorium”

    Couple of issues with this statement
    1. According to the UN IAEA which did a review of the plant for the Malaysian Government, it stated that the concentration is 6 Bq/g, not 62…so this is out by a factor of 10.
    2. Regardless of how much waste there is, the concentration of thorium is the same….you don’t multiply it by 106,000,000 to get a bigger value.

    If you would like to get an informed opinion, go to this link

    http://www.iaea.org/newscenter/news/pdf/lynas-report2011.pdf

    by Scott on Jul 1, 2014 at 4:53 pm

  2. Isn’t global capitalism fun. Why bother with the inconvenience of having to prepare impact statements and abide by reasonably strict health and environmental standards when you can get the job done elsewhere with - for the sake of a nice little donation to the local licencing authority - no bother at all.

    See also the JI and CDI mechanisms under Kyoto.

    by fractious on Jul 1, 2014 at 5:45 pm

  3. It should be noted that, like our absolutely essential, indispensable i-thingies, that chlorofluorocarbons are still used industrially because we just gotta have our sound systems.
    All audio & other solid states circuitry is assembled using CFCs to keep the tiny contacts solderable. Otherweise they might cost more.
    Let’s keep things in perspective, better that I can tweet and burst my eardrums than some green loser gets to keep their planet intact.

    by AR on Jul 1, 2014 at 6:40 pm

  4. It’s extremely dumb to sh*t in one’s own nest.

    The planet is our nest. Big business has trouble grasping that concept.

    by zut alors on Jul 2, 2014 at 9:46 am

  5. AR - there’s no problem using CFCs in industrial processes provided the are container within the process.

    by Malcolm Street on Jul 2, 2014 at 12:26 pm

  6. MalS - agreed on containment but how likely is that, given how cheap CFCs are, in the sweatshop whence our toys originate?

    by AR on Jul 2, 2014 at 3:24 pm

  7. Just for some perspective: each banana you eat emits 15 Bq (it contains Potassium 40)

    Really, this article is actually low grade toxic waste

    by @chrispydog on Jul 2, 2014 at 5:49 pm

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