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随着国家工农业生产和科学技术水平的不断发展,各方面对金属原料的数量、品种要求都越来越多了.原来用途不大的元素,逐渐被广泛利用;由于技术条件限制未能回收利用的一些元素,也必将随着科学技术水平的提高被利用起来.而这些元素,有很大一部分是做为伴生组分存在的,在各种矿床中,特别是有色、黑色金属矿床中都伴生着多种元素,如能进行必要的回收,不仅给国家增加相当可观的财富,而且对解决国家需要的金属品种和提高金属材料的质
With the continuous development of national industrial and agricultural production and science and technology, all aspects of the metal raw material quantity and variety requirements are more and more. The original use of elements is gradually being widely used; due to technical constraints failed to Some elements of recycling will also be used with the improvement of science and technology.And a large part of these elements are as associated components exist in a variety of deposits, especially non-ferrous and ferrous metal deposits Are accompanied by a variety of elements, such as the necessary recovery can not only add considerable wealth to the country, but also to solve the country’s needs of the metal species and improve the quality of metal materials