<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 Outdated production processes and techniques in the mining, dressing, smelting and separating of rare earth ores have severely damaged surface vegetation, caused soil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: 国产片AV国语在线观看手机版| 亚洲国产精品第一二三区| 国产成人精品18| 亚洲护士一区二区三区| 四虎国产精品永久免费网址| 亚洲国产av一区二区三| 激情综合网激情五月俺也想| 色伦专区97中文字幕| 久久精品免视看国产成人| 国产精品中文一区二区| 亚洲欧美成人a∨观看| 亚洲色大成网站WWW久久| 福利一区二区三区视频在线| 天天躁日日躁狠狠躁2018| 女性裸体啪啪拍无遮挡的网站| 国产精品粉嫩嫩在线观看| 国产精品一区二区三区黄| 亚洲中文字幕无码一久久区| 欧美大屁股喷潮水xxxx| 国精产品自偷自偷ym使用方法| 偷窥国产亚洲免费视频| 拔萝卜视频播放在线观看免费| 亚洲国产午夜福利精品| 乳欲人妻办公室奶水| 国产偷窥熟女高潮精品视频| 中文字幕久区久久中文字幕| 亚洲国产精品区一区二区| 一区二区在线 | 欧洲| 视频一区二区三区在线视频 | 国产一区二区不卡在线| 亚洲天堂av日韩精品| 99国产超薄丝袜足j在线播放| 国产蜜臀久久av一区二区| 婷婷综合缴情亚洲| 久久国内精品一国内精品| 久久精品亚洲精品国产色婷| 亚洲色偷偷色噜噜狠狠99| 国产激情艳情在线看视频| 最新av中文字幕无码专区| 中文字幕亚洲高清在线一区| 国产av综合一区二区三区|