Inventor
DITTMANN HORST
DE3 patents
Patents
3 patentsUS5223147AJun 29, 1993
Process of treating contaminated soils
METALLGESELLSCHAFT AG26 citations86
US5439115AAug 8, 1995
Process for selective flotation of copper-lead-zinc sulfide
METALLGESELLSCHAFT AG13 citations67
US5482535AJan 9, 1996
Process for the recovery of silver by floatation from the residue from the wet extraction of zinc
METALLGESELLSCHAFT AG6 citations54