Patent ID: 8696789
Filing Date: 2014-04-15
Classification: C22B,C22C

Abstract:
1. A method for producing a nickel containing ferroalloy, comprising: forming a mixture of a raw material containing iron and chromium, a raw material containing nickel, and a binder material, agglomerating the mixture to form objects having a desired size, heat-treating the objects at a temperature sufficient for removal of water of crystallization bound in the raw material, whereby the raw material containing nickel is calcinated and the objects are strengthened so that the heat-treated objects are conveyable, and smelting the objects under reducing conditions in order to produce ferrochromenickel containing chromium and nickel in a ratio between 1.5 and 5, and wherein the raw material containing iron and chromium supplies substantially all the iron and chromium in the ferrochromenickel; and wherein the raw material containing iron and chromium comprises chromite concentrate.