Color improvement process for organic liquid

Details Color improvement process for organic liquid Color improvement process for organic liquid

1976-03-19

1977-09-20

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204131, B03C 500

Patent

active

040495205

ABSTRACT:
A process for the color improvement of a non-petroleum organic liquid (fats, animal and vegetable oils) containing color impurities (e.g. chlorophyll). The organic liquid is subjected in succession to a refining step using an aqueous reagent, a hydrogenation step wherein the organic liquid in the presence of a finely divided catalyst at elevated temperatures is hydrogenated. The organic liquid carrying entrained catalyst is mixed with a finely dispersed solid adsorbent adapted to remove color bodies. Electrofiltration of the mixture of organic liquid, catalyst and solid adsorbent after hydrogenation effects substantially complete removal of the catalyst and solid adsorbent from the organic liquid thereby providing a solids-free, color improved organic liquid which is passed to a subsequent utilization. Adsorbent mixing and electrofiltration steps are conducted in an atmosphere substantially devoid of oxygen-containing gases.

REFERENCES:
patent: 1162213 (1915-11-01), Bloom
patent: 1377021 (1921-05-01), Mumford
patent: 2516733 (1950-07-01), Unschuld
patent: 3394067 (1968-07-01), Shirley
patent: 3709802 (1973-01-01), Okuhara et al.
patent: 3799855 (1974-03-01), Franse
Soybean Chemistry and Technology, Klare Markley, et al., 1944, pp. 232-240.

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