Method and appratus for extracting tar sand

Details Method and appratus for extracting tar sand Method and appratus for extracting tar sand

1980-11-28

1983-11-22

Therkorn, Ernest G.

Mineral oils: processes and products

Products and compositions

Lubricating oils

196 1452, 422269, 422276, 422281, 422283, 210634, 210801, 210803, 210208, 210519, 210523, 209158, B03B 536, C10G 104, C10C 118, B01D 1102

Patent

active

044167644

ABSTRACT:
Method and apparatus for separating coarse sand particles from fine sand particles in a slurry of sand and a solution such as results from the solvent extraction of tar sand, such method comprising causing flow of such slurry in a generally horizontal direction and then causing upward flow at a rate such that coarse particles settle out and fine particles move upwardly to a slurry outlet. The apparatus preferably comprises a tubular duct for downward flow, bottom openings in the duct for outward flow, a lower receptacle for coarse particles and an annular space surrounding the duct for upward flow of slurry of solution and fine sand particles.

REFERENCES:
patent: 1339682 (1920-05-01), Allen
patent: 1339683 (1920-05-01), Allen
patent: 2140059 (1938-12-01), Simonsen
patent: 2894637 (1959-07-01), Schreiber
patent: 3295677 (1967-01-01), Condolion
patent: 3351195 (1967-11-01), Hubbi
patent: 3357555 (1967-12-01), Garland
patent: 3523889 (1970-08-01), Eis
patent: 3935076 (1976-01-01), Cymbalisty
patent: 4052311 (1977-10-01), Martin
patent: 4055494 (1977-10-01), Emmett
patent: 4120775 (1978-10-01), Murray et al.
patent: 4274963 (1981-06-01), Pyrus
patent: 4278541 (1981-07-01), Eis

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