Sulfur management in a smelting process

Abstract

The present disclosure is directed to direct smelting process for production of molten metal and slag. The process includes controlling, independently, introduction of a first solids feed and a second solids feed into a smelt reduction vessel (SRV), the first solids feed comprising a first sulfur level and the second solids feed comprising a second sulfur level different from the first sulfur level; adjusting the amount of the first solids feed relative to that of the second solids feed to provide a target sulfur content; controlling the target sulfur content introduction into the SRV; and reducing slag foaming and/or instability during metal smelting operation of the SRV. A direct smelting system for production of molten metal and slag is also disclosed.

Dependencies are inferred from the claim text.