Chemical and phase transformations in aWaelz process-slag – carbon system in the range 1700 – 2100 K at a pressure of 0.1 MPa are modeled. It is established that the maximum degree of iron transferred into condensed Fe₃ Si is from 34.7 % at 1800 K to 99.9 % at 2100 K, and into Fe₅Si₃ from 47.7% at 1900 K to 45.6% at 2000 K. With a further increase in temperature iron starts to be transferred into the gas phase. Silicon, in comparison with iron, is more difficult to recover and with an increase in temperature starts to pass into the gas phase. The degree of nonferrous metal Zn, Cd and Pb transfer into the gas phase is 99.99 % over the whole temperature range. Modeling makes it possible to analyze the possibility of obtaining ferrosilicon from technogenic non-ferrous metallurgy waste by electric melting in an electric arc furnace.

在压力为0.1 MPa的1700 – 2100 K范围内，对Waelz工艺炉渣–碳系统中的化学和相变进行了建模。可以确定的是，转移到冷凝的Fe ₃ Si中的最大铁含量从1800 K时的34.7％到2100 K时的99.9％，以及进入Fe ₅ Si ₃从1900 K的47.7％到2000 K的45.6％。随着温度的进一步升高，铁开始转移到气相中。与铁相比，硅更难回收，并且随着温度的升高开始进入气相。在整个温度范围内，有色金属Zn，Cd和Pb转移到气相中的程度为99.99％。通过建模，可以分析通过在电弧炉中进行电熔化从技术性有色冶金废料中获得硅铁的可能性。