Inventor
EHLERS KLAUS-PETER
14 patents
Patents
14 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
US4271128AJun 2, 1981
Apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates
HOECHST AG13 citations72
US4203956AMay 20, 1980
Process and apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates
HOECHST AG8 citations69
US4279876AJul 21, 1981
Conversion of extraction residues originating from phosphoric acid decontamination to solid deposition products
HOECHST AG5 citations62
US4222994ASep 16, 1980
Solvent extraction purification of wet-processed phosphoric acid
HOECHST AG6 citations62
US4134962AJan 16, 1979
Production of pure alkali metal phosphate solutions from wet-processed phosphoric acids
HOECHST AG5 citations62
US3953581AApr 27, 1976
Purification of wet-processed phosphoric acid using anhydrous solvents
HOECHST AG6 citations62
US3996336ADec 7, 1976
Purification of phosphoric acid
HOECHST AG3 citations61
US4299803ANov 10, 1981
Production of alkali metal phosphate solutions free from zinc
HOECHST AG4 citations58
US4053562AOct 11, 1977
Production of alkali metal phosphate solutions of low vanadium content
HOECHST AG5 citations57
US4100261AJul 11, 1978
Production of pure alkali metal phosphate solutions from wet-processed phosphoric acid
HOECHST AG2 citations50
US4346066AAug 24, 1982
Purification of wet-process phosphoric acid
HOECHST AG0 citations41