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一、概述低磷低铁低碳高硅硅锰合金(下称高硅锰合金)是生产金属锰的最经济的还原剂。在过去的生产中要经过下列三道复杂工序: 1.低磷低铁高渣的熔炼; 2.再制锰的熔炼; 3.高硅锰合金的熔炼。由于工序复杂,因此造成锰的回收率低,硅锰合金成本高,生产能力小的缺点。 1958年,国外用高锰渣直接炼取高硅锰合金试验成功的消息,给我们启发很大。在无任何具体资料情况下我们大胆的作了尝试。在试炼中还采用了焦碳作还原剂,成功
First, an overview Low-phosphorus low-iron low-carbon high-silicon Si-Mn alloy (hereinafter referred to as high-Si-Mn alloy) is the most economical production of manganese metal reductant. In the past production to go through the following three complex processes: 1. Low-phosphorus low-iron high-slag smelting; 2. Re-manganese smelting; 3. High-silicon-manganese alloy smelting. Due to the complicated process, the recovery rate of manganese is low, the cost of Si-Mn alloy is high, and the production capacity is small. In 1958, foreign high manganese manganese slag direct high-manganese alloy test successful news, give us great inspiration. We boldly tried without any specific information. In the trial also used coke as a reductant, success