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六偏磷酸钠是一种常见的磷酸盐玻璃体,没有固定的熔点,在水中具有很大的溶解度,但不恒定,其水溶液有很大粘度。近来的研究发现,六偏磷酸钠不存在(PO_3)_6~(6-)这样一个独立单位,而是一个呈链状结构的化合物,其链长约达20—100个P_3~-单位。它作为浮选剂使用,虽然已有一段较长的历史,但对它在金川含镍磁黄铁矿浮选中的影响却研究得不够。金川镍矿石的主要金属矿物有磁黄铁矿、镍黄铁矿、黄铜矿等,其中磁黄铁矿与镍黄铁矿紧密共生,在磁黄铁矿中含有镍黄
Sodium hexametaphosphate is a common phosphate glass body, has no fixed melting point, has a great solubility in water but is not constant, and its aqueous solution has a great viscosity. Recent studies have found that sodium hexametaphosphate does not exist (PO_3) _6 ~ (6-) an independent unit, but a chain structure of compounds, the chain length of about 20-100 P_3 ~ - units. It has been used as a flotation agent for a long time, but its influence on flotation of pyrrhotite containing nickel in Jinchuan has not been studied sufficiently. The main metal minerals of Jinchuan nickel ore are pyrrhotite, pentlandite, chalcopyrite and the like, in which pyrrhotite is closely interbedded with pentlandite and pyrrhotite contains nickel yellow