Sun Chaoyang: REE carbonate rocks test methods
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- Category: Rare Earth News
- Published on Friday, 13 December 2013 14:48
- Written by HJF
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December 7 , Zhejiang sixth academic report analyzing test was held in Hangzhou. The meeting by the Zhejiang large scientific instruments and analytical writing shared management office hosted Testing Association , Zhejiang Province , attracting industry experts , efficient, and many famous enterprises on behalf of more than 600 active participants , to discuss environmental monitoring , food safety, health and quarantine application and development of instruments and other fields . During the meeting, Sun Chaoyang from the Institute of Geology and Mineral Resources of Zhejiang Province as a " test method REE carbonate rocks " reports.
We know that the determination of rare earth elements for geological age, explain the causes of the demo minerals , diagenesis and mineralization of geochemical conditions , material sources , magma evolution provide useful information. As a geochemical study of rocks and minerals , " showing Chen agent" is widely used in the field of modern geological science , and REE and trace elements can help restore a variety of original rock characteristics determine the tectonic setting of its formation.
Spectrophotometry is commonly used test methods of rare earth elements , rare earth elements are widely used in various types of analysis and testing samples . With the continuous improvement of synthesis technology , many new chromogenic reagent REE be applied , although the sensitivity and selectivity spectrophotometry has been greatly improved , the stability has also been enhanced , but still can not meet the requirements of the detection limit difficult to achieve measured REE component . Although genetic spectrophotometric simultaneous realization of multi-component determination of rare earth , but to chemometrics , operate more complicated, in practical applications easily restricted. The biggest drawback XRF determination of rare earth elements is less than the detection limit , it is difficult to test geological samples used in the analysis of trace rare earth.
Inductively coupled plasma atomic emission spectrometry (ICP-AES) has the advantage of a wide range of linear and multi-element determination , has become an important means of analysis of rare earth elements , but the direct determination of analytical sensitivity can not meet the requirements , then , there is more severe matrix effects , spectral interferences and other issues. Therefore, these methods have lost their superiority , unable to meet the current Analysis of Rare Earth testing requirements.
Finally Sun Chaoyang come Summary: Inductively Coupled Plasma Mass Spectrometry (ICP-MS) with high sensitivity , low detection limit , can be directly measured REE carbonate rocks . For some carbonate rocks, using hydrochloric acid, nitric acid, hydrofluoric acid, lactic acid, sulfuric acid decomposition easily lead portion of the heavy rare earth analysis of low sodium oxide should be melted decomposition. Since no suitable means of chemical separation of europium barium content will bring high sample error Jiaotong University , the exact exchange resin separation should be determined by barium or measured using high-resolution ICP-MS .
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"Rare Earth Kingdom" Ganzhou three main areas discontinued
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- Category: Rare Earth News
- Published on Friday, 13 December 2013 14:46
- Written by HJF
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Advantages for the protection and rational utilization of resources , the " rare earth kingdom ," said the main origin of the world's rare earth ions in Ganzhou , Jiangxi introduction of such notice , sought by a number of measures to promote tungsten and orderly development of rare earth resources , sustainable use .
The State Council issued the " Opinions on Promoting the sustainable and healthy development of rare earth industry ," noted that the top three companies southern ionic rare earth industry concentration to 80 %, but since most of the rare earth resources in the hands of local governments and enterprises , at present, Southern ionic rare earth industry consolidation is still the main driving force is actually the local government .
In the new introduction of Ganzhou , " issued in 2011 on the city's tungsten , rare earth ore mined total control indicators notice " that the county district to strictly implement the tungsten ore, total rare earth mine control targets. Nanjing County continues discontinued, Gan County , Xinfeng principle discontinued - by the end of 2011 counties halted .
Meanwhile, the total amount required to strengthen urban counties control indicators of the implementation of the mining law enforcement .
In fact , a few months ago Ganzhou city's rare earth industry in depth unprecedented " revolution" , many mines have been shut down for rectification. The industry believes that the move will intensify in the second half of Ganzhou Rare Earth Resources tight supply situation to some extent .
Six ministries rectify rare earth production
Our great country is rare , reserves and production are among the first in the world .
Since last year, prices of many rare earth products rose yuan per ton day rate "rocket " up . According to data platform commodities business community on September 2 released data show that from the beginning to the end of August , some rare earth products rose more than 700 percent .
This year on July 25 , the Ministry and other six ministries jointly issued a notice , for no instruction production, ultra- command production , backward technology and not by environmental verification of rare earth mining enterprises , the requirements shall be discontinued, rectification, otherwise it will severely punish even hanging ( Note ) off the relevant license .
Most of Ganzhou Rare Earth Mining Discontinued
Ganzhou because they have more than 30% of the country 's heavy rare earth reserves , known as "rare earth kingdom ."
Local Ganzhou Rare Earth Resources , unified management by the Ganzhou Rare Earth Mining Company . The relevant responsible person said Ganzhou Mining will strictly implement the relevant notification , involving rare earth mine to suspend production areas . Ganzhou middle of a separation plant sources, Ganzhou mining has stopped for each mineral separation plant , only big business for individual mines .
Another private Ganzhou separation plant official told reporters , in fact, before the State Council issued the "Opinions" , Ganzhou Rare Earth Mining District, most has been discontinued, because production targets exhausted and environmental verification.
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National "RE hitting" rectification summary yet started
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- Category: Rare Earth News
- Published on Friday, 13 December 2013 14:41
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Rare Association of Jiangsu Province, according to informed sources said Thursday , the second phase of rare earth hitting Jiangsu Province has been completed, the relevant business case has been submitted to statistical verification of the Ministry , the current third phase ( correction summary ) has not yet begun. It is reported that Jiangsu No companies found irregularities . It is understood that in many Shanghai , Jiangxi and other rare earth production and trade enterprise area businesses verifiable progress is slow, is still statistically relevant business results of the verification .
Since August this year , in conjunction with the Ministry of Public Security and other seven ministries and local governments jointly carry out special operations to combat illegal rare earth production , exploitation, distribution and other aspects , according to the original plan, the specific rare earth crackdown divided into three phases , the time is 15 August to 15 November , the provinces were self stage, sector and stage of rectification work of the Joint Inspection summary stage , due to the larger number of verification companies , currently hitting the whole process has been slow .
According to a long-term and spot rare earth exchange analyst at the downstream business , said there are downstream enterprises represent an active black market for rare earths from the previous month , these rare association experts also admitted that the current anti- rare earth normalization has not yet formed , and the rare earth ore private mining process is simple, low cost, easily revived , in order to completely blow difficult.
According to another long-term tracking of rare earth sector brokerage analysts also said that the current capital market for rare earths hitting the lowered expectations, is not expected to occur again in July by hitting Ganzhou Rare Earth Rare Earth brought a large cattle market segment , currently on the market rare and large group purchasing and storage consolidation also have certain expectations, but is approaching the end of a large group purchasing and storage and integration policy is still no definite news will be announced .
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Longyan City Industrial Park, leading to a rare special research
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- Category: Rare Earth News
- Published on Friday, 13 December 2013 14:44
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Yesterday, the Municipal Committee, vice mayor Zhang Tianzhou led the Municipal Development and Reform , finance , trade, environmental protection and other departments and responsible person to Longyan rare earth industrial parks, thematic research park development. Rare Party Work Committee of Longyan Industrial Park Caijin Wang , deputy secretary of the county , the CMC director Longyan rare earth industrial park Liaofang Shun , Huang Jian , deputy magistrate accompanied by research .
Zhangtian Zhou and his entourage visited the rare earth industrial park, and hosted research forum . After the visit and listen to the report on the work of rare earth parks , Zhangtian Zhou pointed out that the rare earth industry is one of the city's focus on the development of emerging industries , is currently in the initial stage , although a lot of difficulties , but the development of a bright future. Zhang Tianzhou required to implement the dislocation of rare earth industrial park development , differences in management, to highlight the project lead, firmly stick to good projects , large projects , good investment negotiations , floor started trial production in all aspects of production , etc. , to highlight the platform, to build a good technology platform , testing platform and related infrastructure , to use their brains to find ways to highlight innovative financing , resource protection and development environment .
At the forum, said municipal department heads will continue to co-ordinate services, fully support the development of the park .
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China Rare Earth Recycling Enterprise Development Status
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- Category: Rare Earth News
- Published on Friday, 13 December 2013 14:39
- Written by HJF
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This year, the China Rare Earth Industry Association conducted a survey of rare earth waste recycling companies , the survey showed that there were rare comprehensive waste recycling business 56 .
According to experts, since 2011 , the approval of the corporate assault around 90% , the waste treatment capacity of 190,600 tons . Among them, NdFeB, phosphor, polishing powder waste treatment capacity was 141,700 tons , 23,100 tons and 21,500 tons . But in 2012 , the national annual output of 80,000 tons NdFeB , total waste by 30 percent and only 24,000 tons ; production of phosphors, polishing powder is not high , overall, there is not enough for these rare earths waste integrated waste recycling business deal .
In addition there are experts, Jiangxi Province 39 integrated waste recycling company, with annual processing capacity of 10 million tons of waste . Part of a comprehensive waste recycling companies to take advantage of the comprehensive recycling names , by their high degree of overlap of the process , the line separating the solid ore , constitutes a great impact on the informal enterprises .
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