Coal liquefaction

Details Coal liquefaction Coal liquefaction

1980-08-18

1982-04-27

Tufariello, T. M.

Mineral oils: processes and products

Refining

208290, 208298, C10G 2100, C10G 2920

Patent

active

043269486

ABSTRACT:
Undissolved solid particles in coal liquefaction product are separated by forming a mixture of the coal liquefaction product, water and a separation promoter and separating the mixture into an upper layer containing coal liquefaction product and separation promoter, an intermediate aqueous layer and a lower layer containing undissolved solid particles.

REFERENCES:
patent: 2761821 (1956-09-01), Jahnig
patent: 2789083 (1957-04-01), Hardy
patent: 4040958 (1977-08-01), Rammler
patent: 4085029 (1978-04-01), Malek
patent: 4132630 (1979-01-01), Carr
patent: 4148716 (1979-04-01), Paraskos
patent: 4159240 (1979-06-01), Malek

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