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This paper deals with an economic and clean route for the synthesis of ferro-alloys through utilization of waste materials (mill scale and spent acid). The molybdic oxide, MoO 3 is successfully synthesized from the spent acid by ammonia gas neutralization method. MoO 3 /mill scale powder mixture was isothermally reduced in pure hydrogen at 700–1100°C. Based on thermogravimetric analysis,...
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