<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          chinadaily.com.cn
          left corner left corner
          China Daily Website

          Full Text: Situation and Policies of China's Rare Earth Industry

          Updated: 2012-06-20 13:24
          ( Xinhua)

          Despite its rapid development, China's rare earth industry also faces many problems, for which China has paid a big price. The following are some of the problems:

          - Excessive exploitation of rare earth resources. After more than 50 years of excessive mining, China's rare earth reserves have kept declining and the years of guaranteed rare earth supply have been reducing. The decline of rare earth resources in major mining areas is accelerating, as most of the original resources are depleted. In Baotou, only one-third of the original volume of rare earth resources is available in the main mining areas, and the reserve-extraction ratio of ion-absorption rare earth mines in China's southern provinces has declined from 50 two decades ago to the present 15. Most of the southern ion-absorption rare earth deposits are located in remote mountainous areas. There are so many mines scattering over a large area that it is difficult and costly to monitor their operation. As a result, illegal mining has severely depleted local resources, and mines rich in reserves and easy to exploit are favored over the others, resulting in a low recovery rate of the rare earth resources. Less that 50 percent of such resources are recovered in ion-absorption rare earth mines in southern China, and only ten percent of the Baotou reserves are dressed and utilized.

          - Severe damage to the ecological environment. Outdated production processes and techniques in the mining, dressing, smelting and separating of rare earth ores have severely damaged surface vegetation, caused soil erosion, pollution, and acidification, and reduced or even eliminated food crop output. In the past, the outmoded tank leaching and heap leaching techniques were employed at ion-absorption middle and heavy rare earth mines, creating 2,000 tonnes of tailings for the production of every tonne of REO (rare earth oxide). Although more advanced in-situ leaching method has been widely adopted, large quantities of ammonium nitrogen, heavy metal and other pollutants are being produced, resulting in the destruction of vegetation and severe pollution of surface water, ground water and farmland. Light rare earth mines usually contain many associated metals, and large quantities of toxic and hazardous gases, waste water with high concentration of ammonium nitrogen and radioactive residues are generated during the processes of smelting and separating. In some places, the excessive rare earth mining has resulted in landslides, clogged rivers, environmental pollution emergencies, and even major accidents and disasters, causing great damage to people's safety and health, and the ecological environment. At the same time, the restoration and improvement of the environment has also heavily burdened some rare earth production areas.

          - Irrational industrial structure. China's rare earth industry has huge over-capacity in smelting and separating. On the other hand, the research and development of rare earth materials and components is lagging behind, its level of rare earth new materials development and end-product application technologies is significantly lower than the advanced international level, and the IPR ownership, and the production and processing technologies of new-type rare earth materials and components are relatively small in number. As a result, low-end products overflow while high-end products are in short supply. China's rare earth metals industry, relatively small in scale, features a low concentration rate with numerous businesses, but lacks large enterprises with core competitiveness. Self-discipline in the industry is also weak, and vicious competition exists to some extent.

          - Severe divergence between price and value. Over quite a long period of time, the price of rare earth products has remained low and failed to reflect their value, the scarcity of the resources has not been appropriately represented, and the damage to the ecological environment has not been properly compensated for. Since the second half of 2010, despite the gradual rise in the price of rare earth products, the rise has been much lower than that in the price rise of other raw materials like gold, copper and iron ore. From 2000 to 2010, the price of rare earth products rose by 2.5-fold, while that of gold, copper and iron ore increased by 4.4-, 4.1-, and 4.8-fold during the same period, respectively.

          Full Text: Situation and Policies of China's Rare Earth Industry

          Chart 1 Changes in the Price of China's Rare Earth Products 1986-2010

          Full Text: Situation and Policies of China's Rare Earth Industry
          Chart 2 Price Rise of Rare Earth Products as Compared with That of Some Other Commodities, 2000-2010

          Full Text: Situation and Policies of China's Rare Earth Industry

          Chart 3 Price Changes of Rare Earth, Gold, Copper and Iron Ore 1986-2010

          - Grave smuggling. Due to multiple factors, including domestic and international demand, the smuggling of rare earth products to overseas markets continues to be a problem in spite of the efforts made by China's customs listing it as a key criminal act to crack down on. From 2006 to 2008, the volumes of rare earth products imported from China, according to statistics collected by from foreign customs, were 35 percent, 59 percent and 36 percent higher than the volumes exported, as statistics released by the Chinese customs show, and the figure from foreign customs is 1.2-fold over the Chinese figure in 2011.

          To address the salient problems in the development of China's rare earth industry, the Chinese government has tightened supervision over it. In May 2011, the State Council issued Guidelines on Promoting the Sustainable and Healthy Development of the Rare Earth Industry (hereinafter referred to as the "Guidelines"), attaching more importance to the protection of resources and the environment, and the realization of sustainable development. According to the "Guidelines," the government - in accordance with law - will strengthen control over the mining, production, circulation, import and export, and other links of the rare earth industry, and study and formulate as well as amend and improve related laws and regulations on the administration of this industry. The Chinese government has established an inter-departmental coordinating mechanism for the rare earth industry to make overall plans and study of the national strategy, program, plan, policy, and other important issues concerning the development of the rare earth industry. The state has also set up a rare earth office to coordinate and propose plans on the mining, production, reserve, and import and export of rare earth materials. The relevant departments of the State Council will perform their respective administrative functions accordingly. In April 2012, Association of China Rare Earth Industry was founded with official approval. It is expected to play an important role in promoting self-discipline in the industry, regulating the industrial order, and proactively carrying out international cooperation and exchanges, among other functions. A year or so has passed since the implementation of the "Guidelines," the transformation of the development pattern of China's rare earth industry has picked up speed, and significant improvement has been seen in its development order.

          ...

          ...
          ...
          主站蜘蛛池模板: 国产精品日本一区二区不卡视频| 99久久婷婷国产综合精品青草漫画| 亚洲欧美牲交| 三年片在线观看免费观看大全下载| 国产一区二区三区不卡视频 | 久久久这里只有免费精品| 午夜高清福利在线观看| 国产亚洲欧美日韩在线看片| 色综合色综合综合综合综合| 91人妻无码成人精品一区91| 国产一级片内射在线视频| 一区一区三区产品乱码| 无码国产精品一区二区AV| 又爽又黄又无遮掩的免费视频| 无码区日韩专区免费系列| 久青草视频在线视频在线| 亚洲自拍另类| 久久亚洲女同第一区综合| 中国美女a级毛片| 人妻伦理在线一二三区| 西西人体www大胆高清| 日本视频一两二两三区| 日韩放荡少妇无码视频| 亚洲伊人久久成人综合网| 日韩丝袜欧美人妻制服| 国产偷国产偷高清精品| 中文午夜乱理片无码| 亚洲乱色熟女一区二区三区蜜臀| 蜜臀av午夜精品福利| 亚洲国产欧美在线看片一国产| 欧洲精品亚洲精品日韩专区 | 亚洲国产成人无码AV在线影院L| 国产精品分类视频分类一区 | av在线播放国产一区| 男女猛烈无遮挡免费视频APP| 日本一区二区三区精品国产| 亚洲岛国成人免费av| 亚洲欧美日韩中文字幕网址| 99福利一区二区视频| 少妇自慰流白口浆21p| 激情综合色综合啪啪开心|