US4191641A
|
|
Flotation process with use of xanthogen chloropropyl formate reagents
|
US4120888A
|
|
Preparation of chlorine-substituted chloroformates
|
US4136020A
|
|
Flotation reagent and process
|
US4039569A
|
|
Methyl chloroformate process
|
US4036746A
|
|
Flotation with amine-stabilized dialkyl dithiophosphates
|
US3971836A
|
|
Amine-stabilized dialkyl dithiophosphates
|
US3975264A
|
|
Flotation of copper sulfide ores with improved thionocarbamates
|
US3907854A
|
|
Dialkyl thionocarbamate method
|
US2901107A
|
|
Froth flotation of copper sulfide ores
|
US2689044A
|
|
Concentration of minerals
|
US2689046A
|
|
Concentration of minerals
|
US2689045A
|
|
Concentration of minerals
|
US2689043A
|
|
Concentration of minerals
|
US2608573A
|
|
Xanthogen compounds
|
US2608572A
|
|
Xanthogen formates
|
US2574554A
|
|
Bis carbonyl dithiophosphate compounds
|
US2602814A
|
|
Dicarbonyl compounds
|
US2501269A
|
|
Froth flotation of sulfide ores
|
US2434357A
|
|
Tetra-alkyl carbonyl tetrathio diphosphates and process for their preparation
|
CA516329A
|
|
Concentration of minerals
|