锡精矿炼锡,国内外普遍采用反射炉二次还原熔炼法。但对于含锡品位高、含铁低、粒度细的锡精矿,有可能采用一次还原熔炼出贫渣,以缩短流程,提高经济效益。本文介绍了在生产设备上进行的试验结果,论述了二次熔炼祛的合理性和可行性,指出了有待解决的技术问题和办法。 Tin concentrate tin refining, both at home and abroad generally use reverberatory furnace secondary reduction melting method. But for tin-containing high-grade, low iron content, fine size tin concentrate, it is possible to use a reduction smelting slag, to shorten the process and improve economic efficiency. This paper introduces the test results on the production equipment, discusses the rationality and feasibility of secondary melting, and points out the technical problems to be solved.