THE MINERALOGY, CORROSION-RESISTANCE AND PROPERTIES OF 6 COMMERCIAL REBONDED FUSED GRAIN MAGNESITE-CHROME BRICKS

In 1991/1992, INCO undertook a successful R&D program aimed at extendi ng the lining lives of the top blown rotary converters (TBRCs) al its Copper Cliff Nickel Refinery (CCNR) and the electric furnace at INMETC O. Al the laboratory scale, this effort was divided into three phases. in the first part, mineralogical work was performed on six refractori es that were either currently being used to line these vessels or were considered suitable alternatives. in file second part this mineralogi cal knowledge was used to help determine the compositions of slags tha t would no; corrode the bricks at the operating temperature (1600 degr ees C) of the above furnaces. Finally several important properties of the six refractories were measured To complete their evaluation as can didate linings. This paper reports the results of all three phases of the laboratory scale R&D work.