A procedure for the reduction of minerals, mainly of iron minerals (Machine-translation by Google Translate, not legally binding)

摘要

A process for reducing minerals and the like in which a charge containing mineral and solid carbonaceous reducing agent is heated by combustión by gas air passing through the charge with the carbon contained in the charge impeded from contact with the combustión gases or with the air introduced to produce them by surrounding the individual parts of the carbonaceous reducing agent or of bodies consisting mainly of a mixture of fine-grained mineral and fine-grained carbonaceous material with an outer layer consisting mainly of fine-grained ore and/or other materials non-combustible fine-grained fillers (which do not contain free carbon or at least contain only very small amounts thereof) whose layers are, if necessary, joined together by a binding agent to form coherent solid crusts that protect the carbonaceous material from within of these crusts will count the combustión being at the same time sufficiently bears to allow the gas developed in the course of reduction processes etc. To escape from inside the pieces. (Machine-translation by Google Translate, not legally binding)