Inventor
VAN LEIRSBURG DEAN A
US10 patents
Patents
10 patentsUS4851380AJul 25, 1989
Process for regenerating sulfur contaminated reforming catalysts
CHEVRON RES47 citations92
US4514369AApr 30, 1985
Recovery of cobalt, molybdenum, nickel, tungsten and vanadium from an aqueous ammonia and ammonium salt solution by coextracting molybdenum, tungsten and vanadium and sequential extraction of nickel and cobalt
CHEVRON RES32 citations92
US4500495AFeb 19, 1985
Recovering metals from spent hydroprocessing catalysts
CHEVRON RES49 citations92
US4434141AFeb 28, 1984
Recovery of cobalt, molybdenum, nickel and vanadium from an aqueous ammonia and ammonium salt solution by coextracting molybdenum and vanadium and sequential extraction of nickel and cobalt
CHEVRON RES36 citations92
US4432953AFeb 21, 1984
Leaching cobalt from spent hydroprocessing catalysts with sulfur dioxide
CHEVRON RES39 citations92
US4409190AOct 11, 1983
Extracting cobalt from spent hydroprocessing catalysts with cyanide
CHEVRON RES31 citations91
US4432949AFeb 21, 1984
Recovery of cobalt, molybdenum, nickel and vanadium from an aqueous ammonia and ammonium salt solution by precipitating vanadium and subsequent serial ion exchange
CHEVRON RES23 citations81
US4515757AMay 7, 1985
Stripping a solution containing molybdenum, tungsten and/or vanadium values
CHEVRON RES7 citations73
US4442074AApr 10, 1984
Recovery of cobalt, molybdenum, nickel and vanadium from an aqueous ammonia and ammonium salt solution by serial extraction of nickel and cobalt and coextracting molybdenum and vanadium
CHEVRON RES8 citations73
US4434140AFeb 28, 1984
Stripping a solution containing molybdenum and vanadium values
CHEVRON RES9 citations73