Sponge Iron
METALLUGICAL INDUSTRYMINING INDUSTRYRENEWABLE ENERGY Previous Next Sponge iron production in tunnel kiln Introduction Sponge iron production by tunnel kiln method was developed from 1911 as Höganäs method in Sweden. After many modifications, now this process is a sufficient and effective method for sponge iron production. The main advantage of tunnel kiln process is the possibility to build […]