GRANULATION AS IT PERTAINS TO ELECTRIC FURNACE MATTE,CONVERTER SLAG, AND CONVERTER MATTE IN A PGM SMELTER

摘要

The granulation of TBRC slag, TBRC matte, and electric furnace matte at the Stillwater Smelter has improved dramatically over time. Through process improvements, metallurgical controls, and operational innovations, the occurrence of rapid steam explosion at the granulation launder have dramatically decreased. Moreover, lowering the pump speed and removing the fine particulate entrained within the granulation water through filtration has improved pump life and recovered significant quantities of precious metals.