在苏联黑色治金矿山设计院(Механобрчермет)以试验室和半工业规模研究了由捷尔任斯基矿务局磁铁矿中生产高质量精矿的工艺。捷尔任斯基矿流程发展规定生产含SiO_20.15～0.4%的超级精矿16.5万吨。年生产5000吨的工业试验装置的施工设计已完成。设计中规定捷尔任斯基矿务局中央选厂精矿通过再选和随后的热压浸出制取超级精矿。超级精矿质量与中央选厂精矿SiO_2含量关系已被查明。在SiO_2含量等 The process of producing high quality concentrate from magnetite from the Dzerzhinskaya Mining Bureau has been studied at the laboratory and semi-industrial scale at the Soviet Blacksmithing Institute (Механобрчермет). The Dzerzhinsky mine process development provides for the production of 165,000 tons of super concentrate containing SiO_20.15 ~ 0.4%. The construction design of an industrial test plant with an annual output of 5,000 tons has been completed. The design specifies that the concentrates concentrate at the Central Concentration Factory of the Dzerzhinskaya Mining Administration will be used to prepare the super concentrate by re-election and subsequent hot press leaching. The relationship between the quality of super concentrates and the content of SiO_2 in the concentrate of central processing plant has been identified. In the SiO 2 content and so on