TECHNICAL PROGRESS REPORT for the Eighth Quarter (July 1,1994 to September 30,1994) CONTROLLING INCIPIENT OXIDATION OF PYRITE FOR IMPROVED REJECTION R.-H. Yoon and P.E. Richardson Department of Mining and Minerals Engineering Virginia Polytechnic Institute & State University Blacksburg, Virginia 24061-0258 Grant Number: DE-FG22-92PC92547 Project ManaRer: - Richard Read US. Department of Energy Pittsburgh Energy Technology Center P.O. Box 10940 Pittsburgh, Pennsylvania 15236 U.S./DOE Patent Clearance is not - required prior to the publication of this document T IS UNL