Japan developed a new technique for efficient recovery of rare earth neodymium magnets from waste in
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- Category: Rare Earth News
- Published on Wednesday, 07 May 2014 13:41
- Written by HJF
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Japan Shimane University research new technology to extract rare earth neodymium magnets from waste under normal temperature and pressure conditions. Previous rare earth resource recovery, using hydrochloric acid as solvent, carried out under high temperature and pressure, there are some problems in terms of efficiency and cost. The Faculty of Shimane University Polytechnic successfully developed new technology system, using a mixed solution of sulfuric acid and oxalic acid as solvent, with the use of zirconia grinding kinetic energy, under normal temperature and pressure after demagnetization processed scrap magnet powder synthesis processing, high efficiency and low cost to obtain the purity for industrial use for more than 80% high purity neodymium oxalate, the waste in the magnet of neodymium can recover nearly 100%.
METI Japan Patent Office has issued in March 17, 2014 the technology of the invention patent public bulletin, Shimane University research team is working with Japanese resource regeneration and chemical equipment of the enterprises to cooperate, to further improve the recycling purity and enhance the recovery ability of the system. At the same time, the research team also further studies using this system recovery nd other rare earth, rare metal resources.
This technique greatly reduces the recovery cost, is considered to be an important breakthrough in rare earth recovery technology, utilization of rare earth resources cycle has important significance.
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Ministry of land and resources issued this year the first batch of rare earth mining index
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- Category: Rare Earth News
- Published on Wednesday, 07 May 2014 13:39
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Recently, Ministry of land and resources issued 2013 annual national first batch of tungsten, antimony, rare earth mining index of total quantity control. Among them, in the rare earth mining index, rare earth ore (rare earth oxide REO) exploitation of total amount control target of 46900 tons, of which, index of ion type rare earth ore 8950 tons, ore type light rare earth ore indexes of 37950 tons.
It is understood, the rare earth index issued in 2012 by the 50% indexes are determined. While mining total control targets this year will be based on the changes of the relevant policies of the state and the market, in 2013 second quarter issued by environmental protection.
Although the implementation of total quantity control of rare earth rare earth mining intended to prevent illegal coal, but this policy in practice is often encountered embarrassment.
Data shows, 2009 national rare earth mining quota of total control of 82300 tons, the index in 2010 increased to 89200 tons, in 2011 the national rare earth mining total control indicators continue to increase 4600 to 93800 tonnes in the previous basis, of which 80400 tons of light rare earth, heavy 13400 tons of rare earth.
But in the actual implementation, not all enterprises to strictly enforce the plan. Public reports, in recent years, some provinces of the actual mining rare earth each year more than plan of the Ministry of land and resources. But the national point of view, from the beginning of 2005, China rare earth for 5 consecutive years of more than 100000 tons, output in 2008 reached 124800 tons, in 2009 reached 120000 tons, the actual output is above the index.
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Some rare earth enterprises will waste water discharged into the the Yellow River
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- Category: Rare Earth News
- Published on Wednesday, 07 May 2014 11:39
- Written by HJF
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The world of rare earth production 95% concentrated in China, production of rare earth products of high growth in bring economic benefits at the same time, also has brought serious environmental pollution. The reporter was informed that, as the emission standard of rare earth production enterprises, environmental protection department is currently preparing "rare earth smelting industry pollution prevention feasible technical guide" (hereinafter referred to as the guide), and solicit the public opinions.
In recent years, the industry of rare earth smelting in China entered a stage of rapid development, and become the world's biggest producer of rare earths. According to statistics, China's existing rare earth smelting enterprises up to 100, rare earth minerals output from 73000 tons in 2000, increased to 129400 tons in 2009, almost doubled, accounting for about 95% of the world.
However, the yield of rare earth products of high growth in bring economic benefits at the same time, also has brought serious environmental pollution. For example, there are ammonia nitrogen, fluoride wastewater discharge problems of rare earth production process. At the same time, also produce fluorine and oxygen and sulphur emissions. The guidelines for the preparation of said, "with all kinds of rare earth metals and their alloys with annual output of 30000 tons, annual emissions of 1200 tons of rare earth electrolysis flue gas fluoride, some enterprises also have direct emissions or simple processing can not meet the discharge standards issues." In addition, radioactive waste discharge and two pollution problems can not be ignored.
According to this explanation says, rare earth ore always associated radioactive thorium radioactive waste, which, Baotou rare earth ore processing is the most prominent. Baotou area annually produces 50000 tons of radioactive waste, Gansu rare earth company annual production of more than 1 tons of water leaching residue. "Some enterprises in Baotou City, the water leaching residue into permanent radioactive residue library storage, some enterprises will waste water directly discharged into the tailings dam of Baotou Steel, some enterprises take the water leaching slag water into the drainage ditch into the ground and came to the Yellow River. Gansu rare earth company into the water and wastewater discharged into self-contained with leaching residue of tailings dam, some enterprises have any stockpiling radioactive waste, without any protective measures, the surface water and the surrounding environment, resulting in different levels of radioactive contamination." Explanation of compiling wrote.
Environmental Protection Department of the relevant responsible person said, in recent years, China implemented more stringent protective mining policy and ecological and environmental protection standards for rare earth resources and environment, strict industry access. Including, accelerate the formulation and improvement of rare earth mining and production standards, the implementation of strict environmental access system, strictly enforce the "discharge standard of pollutants for" rare earth industry, the rare earth industry environmental risk assessment system.
"The guidelines are currently being developed to make full use of the successful experience of pollution prevention and control management system in developed countries, combined with the actual situation of Chinese rare earth industry, which has a guiding role for China's rare earth smelting industry pollution prevention and control. As long as the strict implementation of guidelines, will ensure that the rare earth production enterprises pollutant discharge standards and clean production standard." The responsible person said.
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In May 7, 2014, rare earth market price
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- Category: Rare Earth News
- Published on Wednesday, 07 May 2014 13:38
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Rumors of rare earth reserve draws closer, the downstream and upstream suppliers procurement are less move, wait and see, at present the mainstream prices weak steady, some varieties for light turnover decreased slightly.
Dysprosium oxide mainstream manufacturers including tax 160-165 yuan / ton, Dy Fe mainstream manufacturers including tax price 165-170 yuan / ton.
Praseodymium oxide mainstream manufacturers including tax price of 570000-580000 yuan / ton. Neodymium oxide 315000-325000 yuan / ton.
Lanthanum oxide manufacturers including tax price of 18500-19500 yuan / ton. Cerium oxide mainstream manufacturers including tax price of 19500-20500 yuan / ton.
Praseodymium neodymium oxide mainstream manufacturers including tax price of 325000-328000 yuan / ton, praseodymium and neodymium metal mainstream manufacturers including tax price of 415000-425000 yuan / ton.
Europium oxide of phosphor grade mainstream manufacturers including tax price 3900-4000 yuan / kg. Terbium oxide of phosphor grade mainstream manufacturers including tax price 3000-3200 yuan / kg.
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From four aspects to solve this rare earth
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- Category: Rare Earth News
- Published on Wednesday, 07 May 2014 11:35
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Rare is the important strategic resources, known as the "industrial vitamin", widely used in new energy, new materials, electronic information, aerospace and other fields. At present, the rare earth production in China occupies the absolute position, perennial accounted for over 90% of the world, but the development of China's rare earth industry is in the domestic trouble and foreign invasion.
Sadie, Financial Research Institute expert He Rongliang Wen pointed out that, for a long time, problems of environmental pollution problems, resource utilization efficiency is low, the lack of core technology related products R & D, restricts the sustainable development of rare earth industry in china.
To solve the bottleneck problems faced in the development of China's rare earth industry, put forward four suggestions he Rong Liang: first, adjust the export of rare earth policies, establishment of environmental management system. One is to establish the system of enterprise environmental certification standards. The EU "green barriers" policy of our country's enterprises have run into a wall, the enterprise of rare earth production in China, to establish environmental remediation, mining, production and other aspects of environmental control system. Two is the establishment of rare earth export enterprises in key environmental protection monitoring system and security system.
Second, a rare earth environmental tax, alleviate the pressure of local governance cost. To accelerate the environmental protection tax, suggested sharing by the central and local fixed proportion, and environmental governance responsibility outstanding local government. In addition, allocated by the central government re pollution of the environment management of special funds, according to the area of rare earth mining and smelting scale, pollution control investment demand, governance, progress, fund allocation.
Third, adjust the resource tax, reflect the real value of the rare earth market. Low resources tax to reflect the social costs of rare earth consumption, difficult to achieve resource conservation, suggestions for further adjustment of rare earth resources tax. One is to reform the tax method, from the amount of ad valorem levy to raise enterprise, rare earth mining cost, play a dual role in the protection of resources and environment. The two is to reflect the differential income, improve the resource tax levy in proportion.
Fourth, the implementation of tax rebates and fund support policy, manifests the resources I used the principle. Actively support the technology innovation of Chinese enterprises, to reverse the situation of rare earth technology heteronomy. Strengthen the fiscal and taxation support, establish the tax return and the fund support, incentive policies. One is the tax refund system. Two is the special technological fund support. The three is the key technology to support.
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