Process for removal of mineral particulates from coal-derived li

Details Process for removal of mineral particulates from coal-derived li Process for removal of mineral particulates from coal-derived li

1978-10-12

1980-03-04

Crasanakis, George

Mineral oils: processes and products

Phenolic or toxic oils

208177, C10G 106, C10G 2912, C10G 2906

Patent

active

041916280

ABSTRACT:
Suspended mineral solids are separated from a coal-derived liquid containing the solids by a process comprising the steps of: (a) contacting said coal-derived liquid containing solids with a molten additive having a melting point of 100.degree.-500.degree. C. in an amount of up to 50 wt. % with respect to said coal-derived liquid containing solids, said solids present in an amount effective to increase the particle size of said mineral solids and comprising material or mixtures of material selected from the group of alkali metal hydroxides and inorganic salts having antimony, tin, lithium, sodium, potassium, magnesium, calcium, beryllium, aluminum, zinc, molybdenum, cobalt, nickel, ruthenium, rhodium or iron cations and chloride, iodide, bromide, sulfate, phosphate, borate, carbonate, sulfite, or silicate anions; and (b) maintaining said coal-derived liquid in contact with said molten additive for sufficient time to permit said mineral matter to agglomerate, thereby increasing the mean particle size of said mineral solids; and (c) recovering a coal-derived liquid product having reduced mineral solids content. The process can be carried out with less than 5 wt. % additive and in the absence of hydrogen pressure.

REFERENCES:
patent: 3677932 (1972-07-01), Hardesty et al.
patent: 3736250 (1973-05-01), Berg et al.
patent: 3844928 (1974-10-01), Geymer
patent: 4057484 (1977-11-01), Malek
patent: 4085029 (1978-04-01), Malek
patent: 4092236 (1978-05-01), Heredy

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