Inventor

KEHL RALF

DE6 patents

⚠️ This page may combine multiple inventors who share the name “KEHL RALF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HENKEL KGAA

4 patents

US5632963AMay 27, 1997

Process for the removal of impurity elements from solutions of valuable metals

HENKEL KGAA44 citations91

US5039496AAug 13, 1991

Process for selective extraction of contaminant elements from mixtures of electrolytes in solution

HENKEL KGAA17 citations67

US6045763AApr 4, 2000

Process for working up ammoniacal metal solutions including treating the wash water with an organic extraction solution

HENKEL KGAA6 citations61

US4820417AApr 11, 1989

Use of citric acid partial esters for the extraction of iron

HENKEL KGAA3 citations61

HENDEL KOMMANDITGESELLSCHAFT A

1 patent

US5260039ANov 9, 1993

Process for the two-phase extraction of metal ions from phases containing solid metal oxides, agents and the use thereof

HENDEL KOMMANDITGESELLSCHAFT A8 citations70

HENKEL KG

1 patent

US4834951AMay 30, 1989

Common separation of contaminating elements from electrolyte solutions of valuable metals

HENKEL KG15 citations68