Methods for the reduction of materials containing iron oxide and nickel laterite in a reactor

摘要

"METHODS FOR REDUCING MATERIALS CONTAINING IRON OXIDE AND NIQUELYFERA LATERITE IN A REACTOR". The present invention relates to a method for the pre-reduction of laterite fines in a reactor, preferably a fluidized bed, with reducing gases generated in situ by the addition of a reducing agent, such as a carbonaceous material, in the fluidized bed, fluidize the bed with an oxidizing gas and keep the reactor at a temperature high enough to partially burn the coal and generate a reduction atmosphere. The calcined product from the reactor bed discharge has a carbon content of about 0.1%, and the composite reactor product has a carbon content of less than 2.0%.