Inventor
KNORRE HELMUT
DE22 patents
⚠️ This page may combine multiple inventors who share the name “KNORRE HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEGUSSA
20 patentsUS4416786ANov 22, 1983
Process for the treatment of continuous waste water streams having changing contents of different oxidizable materials with hydrogen peroxide
DEGUSSA56 citations94
US4280914AJul 28, 1981
Process for automatically controlling the detoxification of waste waters containing nitrite ions
DEGUSSA21 citations82
US3970554AJul 20, 1976
Process for detoxification of cyanides and nitriles with peroxygen compounds
DEGUSSA20 citations82
US4731232AMar 15, 1988
Process for the purification of industrial gases or waste gases
DEGUSSA8 citations74
US4107274AAug 15, 1978
Process for preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof
DEGUSSA16 citations74
US4051228ASep 27, 1977
Preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof
DEGUSSA10 citations74
US4021264AMay 3, 1977
Method of dissolving a silver coating in a photo tank
DEGUSSA8 citations74
US3980593ASep 14, 1976
Anticaking agent for inorganic salts
DEGUSSA12 citations74
US5275791AJan 4, 1994
Process for the leaching of gold and silver with cyanidic leaching solution and controlled addition of hydrogen peroxide
DEGUSSA8 citations73
US4150244AApr 17, 1979
Process for the production of crystalline alcohol free alkali metal alcoholates in an inert solvent
DEGUSSA12 citations73
US3956121AMay 11, 1976
Process for the precipitation of heavy metal ion-polycarboxylate complexes
DEGUSSA8 citations73
US4126446ANov 21, 1978
Packages for the storage of air and moisture sensitive metallurgical additives and the use of such packages
DEGUSSA7 citations72
US4094693AJun 13, 1978
D,L Tartaric acid as retardant for gypsum plaster
DEGUSSA9 citations72
US4172785AOct 30, 1979
Process for the separation of Cu++ -ions from sewage, waste water and aqueous solutions
DEGUSSA8 citations71
US4252637AFeb 24, 1981
Process for the reprocessing of used lubricating oils (II)
DEGUSSA17 citations69
US5250272AOct 5, 1993
Process for leaching precious metals with hydrogen-peroxide and a cyanide leaching solution
DEGUSSA17 citations66
US4255252AMar 10, 1981
Procedure for the reprocessing of used lubricating oils
DEGUSSA4 citations62
US4124406ANov 7, 1978
Setting retarder
DEGUSSA4 citations62
US4172784AOct 30, 1979
Process for the separation of cadmium (Cd++)-ions from sewage, waste water and aqueous solutions
DEGUSSA6 citations60
US5178775AJan 12, 1993
Cost effective process for detoxification of cyanide-containing effluents
DEGUSSA4 citations57