ENHANCED BITUMEN FLOTATION

A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mount ed thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for...

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Bibliographische Detailangaben
Hauptverfasser:	NEIMAN, OWEN, SIY, ROBERT, SPENCE, JONATHAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS DIFFERENTIAL SEDIMENTATION FLOTATION FUELS LUBRICANTS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION PYROLIGNEOUS ACID RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mount ed thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdra wn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.