Inventor
HONKALA RISTO J
3 patents
Patents
3 patentsUS4355005AOct 19, 1982
Process for the treatment of a raw material which contains oxide and ferrite of zinc, copper and cadmium
OUTOKUMPU OY8 citations69
US4740239AApr 26, 1988
Process for exploitation of low grade oxidic and iron-bearing complex ores or concentrates
OUTOKUMPU OY6 citations60
US4313849AFeb 2, 1982
Process for the production of activated carbon from a moist organic substance
OUTOKUMPU OY6 citations59