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选矿技术在再生金属工业中占有主导地位，有着广泛的应用范围。只有在原料生产的最后一些阶段才涉及化学工序。原生和再生给料之间有许多基本相似之处．通常，可以根据有用矿物和脉石矿物某些物理性质的不同把它们互相分离，但在把选矿技术应用到消费遗弃废料选别的过程中却遇到了很多困难。与再生选别过程中处理的给料相比，选矿厂的原生给料性质单一，而废物给料性质的繁杂则给处理作业带来了许多困难。废料的其它特性往往是更高金属含量（呈金属颗粒，而不是矿物颗粒）、更高的解高度和异常的颗粒形状。几乎所有应用到再生工业的选别方法都是由选矿技术发展而来，但其中最大的例外是涡流选别，后者依赖于大块导电颗粒的存在（例如汽车切碎机排出的象拳头一样大的铝块）。目前，涡流分选机几乎全部地应用在材料再生领域里。随着适合较细粒给料的涡流分选机研制成功，它们很有可能将被应用到原生矿物处理系统中去。
Mineral processing technology in the renewable metal industry holds a dominant position, has a wide range of applications. Only chemical processes are involved in the last stages of raw material production. There are many basic similarities between primary and renewable feedstocks. In general, they can be separated from each other according to certain physical properties of useful minerals and gangue minerals, but many difficulties have been encountered in applying the beneficiation technology to the selection of consumer waste materials. Compared with the feedstocks processed in the regeneration sorting process, the nature of the feedstock in the concentrator is single, while the complex nature of the waste feedstock poses many difficulties in handling operations. Other characteristics of scrap tend to be higher metal content (in the form of metal particles, not mineral particles), higher solution heights and unusual particle shapes. Almost all of the sorting methods used in the recycling industry have been developed by beneficiation technology, but the biggest exception is eddy current sorting, which relies on the presence of large conductive particles (eg car shredder discharges like a fist Large aluminum block). Currently, eddy current sorters are used almost exclusively in the field of material recycling. With the development of a vortex separator suitable for finer grained feeding, they are likely to be used in primary mineral processing systems.