Inventor
STONNER HANS-MARTIN
DE9 patents
Patents
9 patentsUS4162902AJul 31, 1979
Removing phenols from waste water
METALLGESELLSCHAFT AG80 citations94
US4025423AMay 24, 1977
Process for removing monohydric and polyhydric phenols from waste water
METALLGESELLSCHAFT AG149 citations94
US3972693AAug 3, 1976
Process for the treatment of phenol-containing waste water from coal degassing or gasification processes
METALLGESELLSCHAFT AG87 citations94
US4060591ANov 29, 1977
Continuous process for recovering pure, concentrated ammonia
METALLGESELLSCHAFT AG40 citations88
US4241227ADec 23, 1980
Process for reducing biological oxygen demand of gas condensate
METALLGESELLSCHAFT AG11 citations71
US4049782ASep 20, 1977
Process for producing pure concentrated ammonia
METALLGESELLSCHAFT AG8 citations71
US4097539AJun 27, 1978
Process of scrubbing polyhydroxy phenols from gas
METALLGESELLSCHAFT AG2 citations61
US3970432AJul 20, 1976
Multistage vertical extractor for liquid-liquid counterflow extraction
METALLGESELLSCHAFT AG4 citations55
US4218576AAug 19, 1980
Process of scrubbing polyvalent phenols from gas
METALLGESELLSCHAFT AG1 citations51