Recovery of petroleum from tar sands

Mineral oils: processes and products – Tar sand treatment with liquid

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208425, C10G 104

Patent

active

051695189

ABSTRACT:
The recovery of bitumen from tar sands by flotation is improved by the use of alkanol amines as flotation promoters. Monoethanolamine and diethanolamine are particularly useful for this purpose.

REFERENCES:
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patent: 4029567 (1977-06-01), Farnand et al.
patent: 4189376 (1983-06-01), Mitchell
patent: 4389300 (1983-06-01), Mitchell
patent: 4401551 (1983-08-01), Mitchell
patent: 4405825 (1983-09-01), Fenton et al.
patent: 4470899 (1984-09-01), Miller et al.
patent: 4481099 (1984-11-01), Mitchell

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