Use of anionic surfactants to aid in coal/water separation

Use of c in8-34 xx .alpha. olefin sulfonates to improve and...

Use of cupric chloride in zinc flotation

Use of fatty amine salts in combination with fatty acids as...

Use of manganese compounds to improve the efficiency of and...

Use of tetraalkylammonium halides as flotation collectors

Use of thiouracils as selective depressants for the...

Use of two or more nested apertured endless belts with...

Vacuum cleaner utilizing electrostatic filtration and...

Vacuum cleaner utilizing electrostatic filtration and...

Vacuum pneumatic conveying apparatus and method for...

Valuable liquid products from solid distillable carbonaceous...

Vaned anode or high-intensity ionizer stage of electrostatic...

Variable frequency vibration system for electrical...

Variable pulse contamination control device

Variable wall and vortex finder hydrocyclone classifier

Vehicle air conditioning

Vertical fall super conducting magnetic separator

Vertical rotor-type high intensity wet magnetic separator...

Vertical-flow hindered settling velocity classification system