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B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
B03D1/00—Flotation
B03D1/02—Froth-flotation processes
B03D1/04—Froth-flotation processes by varying ambient atmospheric pressure
FR640568D1926-09-071927-09-06
Method and apparatus for recovering fibers from liquids containing them
ExpiredFR640568A
(en)