N-aminoethylpiperazine condensates for beneficiation of phosphat
Neutral hydrocarboxycarbonyl thionocarbamate sulfide collectors
Neutral hydrocarboxycarbonyl thiourea sulfide collectors
Neutral hydrocarboxycarbonyl thiourea sulfide collectors
Novel collector composition for froth flotation
Novel collectors and processes for making and using same
Novel collectors for the selective froth flotation of mineral su
Novel collectors for the selective froth flotation of mineral su
Novel flotation agents for the beneficiation of phosphate ores
Novel O,O'-, O,S'- or S,S'-dithiodialkylene-bis(mono- or dihydro
Oil sand extraction process with in-line middlings aeration and
Oil shale beneficiation process using a spiral separator
Ore and coal beneficiation method
Ore dressing method
Ore dressing process
Ore flotation
Ore flotation
Ore flotation
Ore flotation
Ore flotation