Microwave separation of bituminous material from tar sands

Details Microwave separation of bituminous material from tar sands Microwave separation of bituminous material from tar sands

C - Chemistry, Metallurgy

10

G

196/17

C10G 1/00 (2006.01)

Patent

CA 1293943

ABSTRACT A new process has been developed to separate the bituminous fraction from tar sand (oil sand) using selected microwave frequencies. Frequencies which are preferentially absorbed by water have been found to effect separation. General heating of tar sands by microwaves, which are not strongly absorbed by water does not produce any apparent separation. Especially preferred are microwaves of frequency 947, 950 and 953 MHz, which produce fairly clean separation into asphaltic and mineral fractions. 1500 MHz has also been found to be an operable frequency although less preferred.

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