一、前言遵义贫氧化锰矿到目前为止,通过机械选矿方法实践,证明是一种比较难选的矿石。根据国内外有关技术资料报导,普遍认为用连二硫酸盐法处理贫氧化锰矿是比较有前途的方法之一,这种方法具有工艺较简单,并能得到优质锰精矿等特点。在这种认识 I. Introduction Zunyi lean manganese oxide ore so far, through the practice of mechanical beneficiation method proved to be a more difficult ore. According to the reports of relevant technical data both at home and abroad, it is generally considered that the treatment of lean manganese oxide ore by the dithionite method is one of the more promising methods. This method has the advantages of simple process and high-quality manganese concentrate. In this understanding