微波焙烧炉与管式电阻炉焙烧的工艺研究.doc

PAGE PAGE 25 微波焙烧炉与管式电阻炉焙烧的工艺研究 摘要 如今，随着锰需求量的不断增大，我们对锰矿的使用量也在逐渐增多，而锰矿资源正好使我国所缺乏的，由于矿石品位低，所以在当下电解金属锰工业中，如何将阳极泥回收利用，已经成为关键性问题。而当前我国的大部分冶炼企业对电解锰阳极泥的处理方式都很不恰当，他们对电解阳极泥的处理方式往往仅停留在长期堆放，或者廉价出售，若将阳极泥长期堆放而不加以利用会导致严重的环境污染和资源的浪费，廉价出售也并不能实验阳极泥应有的价值，因此综合回收利用电解锰阳极泥具有重要的现实性意义。目前国内在电解锰阳极泥的回收利用方面所做的研究较少，还没有看到关于其在工业化应用上的报到。 本研究采用微波还原焙烧-硫酸浸出电解锰阳极泥的的方法，以电解锰阳极泥为研究对象，选择微波还原焙烧-硫酸浸出工艺，采用蔗髓为还原剂，高效、选择性还原锰阳极泥中的硒，在微波高温加热焙烧的条件下，研究浸出电解锰阳极泥的工艺技术,实现硒的的高效脱除，最终使之在工业化应用上达到回收利用电解锰阳极泥的目的。 关键词：锰矿阳极泥微波焙烧硒 ABSTRACT Now, with the growing demand for manganese, we use the amount of manganese is gradually increased, and manganese resources just to make our country lacked due to low ore grade, so in the current EMM industry, how the anode mud recycling has become a critical issue. The majority of our country manganese anode mud smelting enterprises are not handled properly, they electrolytic anode slime treatment are often only remain in long-term stacking, or sell off, when the anode mud piled up a long-term rather than take advantage of It can cause serious environmental pollution and waste of resources, but also can not sell cheap experimental anode mud proper value, so comprehensive recycling electrolytic manganese anode mud has important practical significance. At present domestic research done in the recycling aspect of electrolytic manganese anode mud less, we have not seen on its report on the industrial application. In this study, microwave reduction roasting - acid leaching of manganese anode mud approach to electrolytic manganese anode mud as the research object, select the microwave reduction roasting - acid leaching process, using sugarcane pulp as the reducing agent, efficient and selective reduction of manganese anode mud of manganese, at a high temperature microwave heating, electrolytic manganese anode mud leaching process technology to achieve efficient removal of selenium, and ultimately make it in the industrial application of electrolytic manganese anode mud for recycling purposes. Key