汉源县地处四川西部，境内有丰富的矿产资源，如磷、硫、铅锌、菱镁等多种化工矿，特别是储量２０多亿ｔ的磷钾伴生矿，系国内罕见的特大型矿床，被列为省重点攻关项目。这个县过去仅靠卖原矿过日子，经济效益很低。改革开放以来，依靠科技进步，走矿化结合之路，将资源优势变 Hanyuan County is located in western Sichuan, the territory of rich mineral resources, such as phosphorus, sulfur, lead and zinc, magnesite and other chemical minerals, especially reserves of more than 20 billion tons of phosphorus-potassium associated with the Department of rare rare large Deposits, was listed as the provincial key research project. In the past, the county only used crude ore to live its life, and its economic benefits were very low. Since the reform and opening up, relying on scientific and technological progress, taking the road of mineralization, the resource advantages will change