Inventor
SCHROEDTER KLAUS
DE13 patents
Patents
13 patentsUS4321245AMar 23, 1982
Process for the purification of wet-processed phosphoric acid
HOECHST AG9 citations73
US4313826AFeb 2, 1982
Liquid-liquid extraction apparatus
HOECHST AG8 citations73
US4200620AApr 29, 1980
Decontamination of wet-processed phosphoric acid
HOECHST AG10 citations73
US4777028AOct 11, 1988
Process for freeing mineral acids from heavy metals
HOECHST AG12 citations72
US4271128AJun 2, 1981
Apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates
HOECHST AG13 citations72
US4511546AApr 16, 1985
Linear, substantially water-insoluble ammonium polyphosphates and process for making them
HOECHST AG5 citations62
US4279876AJul 21, 1981
Conversion of extraction residues originating from phosphoric acid decontamination to solid deposition products
HOECHST AG5 citations62
US4279878AJul 21, 1981
Process for freeing phosphoric acid from organic contaminants
HOECHST AG5 citations62
US4222994ASep 16, 1980
Solvent extraction purification of wet-processed phosphoric acid
HOECHST AG6 citations62
US4394360AJul 19, 1983
Process for reducing iron in phosphoric acid solution
HOECHST AG4 citations61
US4299803ANov 10, 1981
Production of alkali metal phosphate solutions free from zinc
HOECHST AG4 citations58
US4806324AFeb 21, 1989
Process for making phosphoric acid free from titanium
HOECHST AG0 citations52
US4346066AAug 24, 1982
Purification of wet-process phosphoric acid
HOECHST AG0 citations41