一、绪言对所谓黑矿之类的复杂硫化矿完善的处理方法的研究,是日本矿业界多年的课题。近年来,由于很多人的努力,对这种矿石的选矿、冶炼技术,取得了显著的进步。复杂硫化矿在处理上特别之所以成为问题,是因为浮选时黄铜矿和闪锌矿难以分离。关于达一问题,已进行了大量的研究,在生产方面采用了温水浮选或者以二氧化硫抑制锌等新技术,使生产成绩逐渐有所提高。但是,复杂硫化矿难以分选的 I. INTRODUCTION The study of the well-established treatment of so-called complex ores such as black mines is a topic for many years in the mining industry in Japan. In recent years, due to the efforts of many people, significant progress has been made in mineral processing and smelting technologies for such ores. Complex sulphide ore is particularly problematic in handling because chalcopyrite and sphalerite are difficult to separate during flotation. On the issue of reaching a large number of studies have been conducted in the production of the use of warm water flotation or sulfur dioxide inhibition of new technologies such as zinc, the production performance gradually improved. However, complex sulfide ore is difficult to sort