Control of pyrite surface chemistry in physical coal cleaning. Third quarterly progress report, March 1, 1990--May 31, 1990

Abstract

This report was prcparedas an accountof worksponsored by an agencyof' the United Szatcs Government. Neitherthe United StatesGovernmentnor any agencythereof,nor any of their employees,makesany warranty,expressor implied,or assumes any tcsalliability or responsibility for the accuracy, completeness, or usefulness of any information,apparatus, product,or process disclosed, or represents that its usewould not infringeprivatelyowned right_.Refer-cnc¢hereinto any specificcommercial product, process, or serviceby trade name, trademark, manufacturer,or otherwisedots not necessarily constituteor imply its endorsement, recommendation'°r fay°ring bY the United StatesG°vcrnment°r any agencythereof' The views M,,STF.R and opinionsof authors expressedherein do not necessarilystate or reflect thoseof the United StatesGovernment or any agency thereof.