Inventor
HEIMALA SEPPO O
FI10 patents
Patents
10 patentsUS5108495AApr 28, 1992
Method controlling a process by impedance analysis
OUTOKUMPU OY25 citations90
US4561970ADec 31, 1985
Process for the froth flotation of complex metal compounds
OUTOKUMPU OY22 citations80
US4219354AAug 26, 1980
Hydrometallurgical process for the treatment of oxides and ferrites which contain iron and other metals
OUTOKUMPU OY21 citations79
US4917775AApr 17, 1990
Method for measuring and adjusting electrochemical potential and/or component content in the process of treating valuable materials
OUTOKUMPU OY19 citations78
US4483827ANov 20, 1984
Hydrometallurgical process for the recovery of valuable metals from sulfidic, silicate-containing raw materials
OUTOKUMPU OY14 citations72
US4284665AAug 18, 1981
Process for coating an electrically nonconductive material with metal
OUTOKUMPU OY9 citations72
US4393029AJul 12, 1983
Process for the production of an iron-free chronium (III) compound
OUTOKUMPU OY7 citations67
US4740239AApr 26, 1988
Process for exploitation of low grade oxidic and iron-bearing complex ores or concentrates
OUTOKUMPU OY6 citations60
US4243499AJan 6, 1981
Process for electrolytic recovery of zinc from zinc sulfate solutions
OUTOKUMPU OY0 citations50
US5009870AApr 23, 1991
Method for removing sulphur and nitrogen compounds from gas
OUTOKUMPU OY1 citations48