Permanent magnetic separator for liquids

Petroleum production

Ph adjustment in the flotation of sulphide minerals

Phosphate ore triple float

Phosphate rock flotation

Phosphinic acid adducts with maleic acid semiesters, a...

Phosphonic acids and flotation of ores therewith

Physical separation processes for mineral slurries

Pipe rapper transmission mechanism

Pipeline conditioning process for mined oil-sand

Pipeline processing of tar sands to recover hydrocarbons

Placer gold mining method, placer gold mining boat used in...

Plate electrode assembly

Plate electrode assembly for electrostatic precipitator

Plate spacer for electrostatic precipitators

Pleated charged media air filter

Plural stage centrifuging water recycle

Pneumatic apparatus for rapping electrodes in electrical...

Pneumatic classifier for tobacco and method

Pneumatic fluid preconditioner and flow straightening means...