日韩女神精品自拍_2017夜夜干天天撸黄片_日产自拍视频网站大全_欧美视频在线观看三级片_麻豆av一区二区天美传媒_国产精品免费aⅴ片_黄色国产精品_gogo午夜啪啪西西人体大胆高清_а√最新版资源在线官网_五十路豊満熟女强制中出

To Build Green Industrial Base of New Manganese and Barium Materials in Chengkou

2015/07/20 Chongqing Daily

    On 17^th July, our reporter has learned from Chengkou County that the associated laboratory of new manganese and barium material is officially put into use. Technically supported by Tsinghua University and American University of Utah and depended on Chengkou resource superiority of explored manganese and barium mines, this laboratory will develop new manganese and barium materials to further promote the fine development of barium hydroxide, barium chloride and other high-purity chemical products. It provides technical support and protection to develop Chengkou as national important green industrial base of new manganese and barium materials. 

    With abundant mineral resources, national fifth largest manganese ore deposit and Asian first largest barium carbonate ore deposit, Chengkou County is also known as “The Mine Capital of West China”. “But it is unworthy of the name in the past,” Wang Tianju, the deputy county director of Chengkou County, told the reporter. Although there are rich manganese and barium ore resources, the difficulty of refining middle-low grade hollandite from abandoned mine, the serious high-sulfur or hyperphosphate pollution to high grade manganese ore and other problems have always been technique barriers of developing new green hollandite materials. 

   “Chengkou is an ecological conservation area in the northeast of Chongqing, so its new hollandite materials construction continuously conducts industry transformation and upgrading on the premise of ecological environmental protection,” Wang Tianju said. The establishment of associated laboratory relies on technological innovation and product innovation to let manganese and barium industry of Chengkou get high value-added, effective and oligosaprobic development instead of the past superficial exploitation and to find a new industrialization road.