The technical advances in Chinas iron ore beneficiation such as ore preparation, concentration technology, equipment and reagents and after treatment of products are reviewed.

综述了近年我国铁矿石选矿在矿石准备作业、选矿工艺、设备及药剂和产品后处理作业的技术进展。

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The beneficiation technology of rectorite and its adjustment with the change of ore properties was introduced.

介绍了累托石选矿工艺的沿革，以及随着矿石性质变化进行的工艺调整等。

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This paper describes the effects of preconcentration technology in iron ore beneficiation, application conditions; also introduces the applications of new preconcentration technology and equipments.

简述了预选技术在铁矿石生产应用的作用，应用的条件，介绍了选矿预选新工艺、新设备在矿山的应用。

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