Inventor
RAPPAS ALKIS S
US29 patents
⚠️ This page may combine multiple inventors who share the name “RAPPAS ALKIS S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KENNECOTT COPPER CORP
8 patentsUS4095975AJun 20, 1978
Continuous recovery of copper metal from acidic solutions
KENNECOTT COPPER CORP8 citations72
US4148815AApr 10, 1979
Amino-thiol nickel and cobalt solvent extraction
KENNECOTT COPPER CORP3 citations62
US4148816AApr 10, 1979
Alkali metal mercaptide solvent extraction of cobalt, nickel
KENNECOTT COPPER CORP3 citations62
US4148813AApr 10, 1979
Nickel and cobalt solvent extraction with mercaptides
KENNECOTT COPPER CORP3 citations62
US4097272AJun 27, 1978
Winning nickel and cobalt with mercaptide extractants and carbon monoxide strip
KENNECOTT COPPER CORP5 citations62
US4047940ASep 13, 1977
Separation and recovery of copper metal from ammoniacal solutions
KENNECOTT COPPER CORP5 citations62
US4038070AJul 26, 1977
Low temperature and pressure continuous reduction of copper in acid solutions
KENNECOTT COPPER CORP3 citations62
US4128416ADec 5, 1978
Nickel recovery employing carbonyl ferrates
KENNECOTT COPPER CORP0 citations52
RAPPAS ALKIS S
7 patentsUS8297542B2Oct 30, 2012
Coal compositions for catalytic gasification
RAPPAS ALKIS S22 citations92
US8163048B2Apr 24, 2012
Catalyst-loaded coal compositions, methods of making and use
RAPPAS ALKIS S23 citations91
US8734547B2May 27, 2014
Processes for preparing a catalyzed carbonaceous particulate
RAPPAS ALKIS S16 citations83
US8286901B2Oct 16, 2012
Coal compositions for catalytic gasification
RAPPAS ALKIS S20 citations83
US8734548B2May 27, 2014
Processes for preparing a catalyzed coal particulate
RAPPAS ALKIS S6 citations72
US8648121B2Feb 11, 2014
Hydromethanation of a carbonaceous feedstock with nickel recovery
RAPPAS ALKIS S5 citations72
US8557878B2Oct 15, 2013
Hydromethanation of a carbonaceous feedstock with vanadium recovery
RAPPAS ALKIS S5 citations72
CABOT CORP
6 patentsUS4298581ANov 3, 1981
Process for recovering chromium, vanadium, molybdenum and tungsten values from a feed material
CABOT CORP56 citations95
US4278644AJul 14, 1981
Process for partitioning Mo and W from a mixed CaMoO4 -CaWO4 precipitate
CABOT CORP32 citations92
US4305754ADec 15, 1981
Chromium recovery from scrap alloys
CABOT CORP22 citations81
US4320094AMar 16, 1982
Partitioning of refractory metals from oxidation resistant scrap alloy
CABOT CORP18 citations73
US4298582ANov 3, 1981
Vanadium recovery from scrap alloys
CABOT CORP19 citations73
US4423014ADec 27, 1983
Solvent extraction
CABOT CORP1 citations43