1,3-oxatholane-2-thione as sulfide mineral collectors in...

2-mercapto-benzoxazole derivatives as collectors for the...

3-alkoxypropylenimino-bis-(methylene phosphonic acids) and...

A collecting agent comprising ammoniated compounds (primary,...

A froth flotation method and apparatus, a froth flotation...

A method for processing froth treatment tailings

A method for processing refractory auriferous sulfide ores...

A method of and a reactor for removing impurities from a liquid

A method of controlling feed variation in a valuable mineral...

A method to improve the cleaner froth flotation process

A process for purification of a fibre suspension

A separate size flotation device

Aeration apparatus

Aerator apparatus

Agglomerating and separating liquid suspended particles...

Agitated counter current flotation apparatus

Agitator flotation cell with perforated retaining wall

Agitator-flotation cell for dressing minerals and coal

Air distributing ring

Alkylated diaryl oxide monosulfonate collectors useful in...