METHOD FOR PREPARING FERRO MOLYBDENUM FROM MOLYBDENITE

摘要

The present invention relates to preparing ferromolybdenum from molybdenite concentrate, and more particularly, to a method for directly preparing ferro molybdenum having copper content of 0.5 % or less from molybdenite with high copper content, without involving a separate process of eliminating copper, by inserting iron in a heating furnace and reacting same at a high temperature to prepare ferro molybdenum on the lower portion, and slag with aluminum sulfide and iron sulfide as main ingredients on the upper portion, so as to have most of the copper (80ˆ¼95%) in the molybdenite exist in the slag layer. Compared to the existing thermite reaction, the present invention is advantageous in terms of a shorter process and reduced consumption aluminum, which is a reducing agent.