Inventor
VON PRAUN FERDINAND
DE7 patents
Patents
7 patentsUS4259309AMar 31, 1981
Method for obtaining gaseous hydrogen chloride from dilute aqueous hydrochloric acid
HUELS CHEMISCHE WERKE AG22 citations81
US4272502AJun 9, 1981
Process for preparing gaseous hydrogen chloride from dilute aqueous hydrochloric acid
HUELS CHEMISCHE WERKE AG22 citations74
US4255356AMar 10, 1981
Purification of tertiary amines using an adsorbent
HUELS CHEMISCHE WERKE AG14 citations70
US4562264ADec 31, 1985
Process for the recovery of five-membered ring dicarboxylic acid anhydrides
HUELS CHEMISCHE WERKE AG4 citations60
US4337234AJun 29, 1982
Method for preparing sodium bicarbonate and hydrogen chloride
HUELS CHEMISCHE WERKE AG4 citations60
US4217106AAug 12, 1980
Alkaline baths containing alkene sulfonates as wetting agents
HUELS CHEMISCHE WERKE AG2 citations59
US3993605ANov 23, 1976
Foam inhibited or attenuated washing, cleaning and rinsing agents for dishes and utensils
HUELS CHEMISCHE WERKE AG6 citations58