Method for filtering solvent and tar sand mixtures

Patent · Tue Sep 03 00:00:00 EDT 1985

OSTI ID:5917112

Kelterborn, J C; Stone, R A

A method for filtering spent tar sands from a bitumen and organic solvent solution comprises separating the solution into two streams wherein the bulk of the coarser spent tar sand is in a first stream and has an average particle size of about 10 to about 100 mesh and the bulk of the finer spent tar sand is in a second stream; producing a filter cake by filtering the coarser spent tar sand from the first stream; and filtering the finer spent tar sand from the second stream with the filter cake. The method is particularly useful for filtering solutions of bitumen extracted from bitumen containing diatomite, spent diatomite and organic solvent.

• Assignee: Standard Oil Company
• Patent Number(s): US 4539097
• OSTI ID: 5917112
• Resource Relation: Patent File Date: Filed date 29 Feb 1984; Other Information: PAT-APPL-584718
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
OIL SANDS
FILTRATION
SOLVENT EXTRACTION
SOLID WASTES
REMOVAL
BITUMENS
CYCLONE SEPARATORS
ORGANIC SOLVENTS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CONCENTRATORS
ENERGY SOURCES
EQUIPMENT
EXTRACTION
FOSSIL FUELS
FUELS
INERTIAL SEPARATORS
MATERIALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
POLLUTION CONTROL EQUIPMENT
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SOLVENTS
TAR
WASTES
040402* - Oil Shales & Tar Sands- Surface Methods