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US 8,912,351 B2Granted
Process for removing metals from tallow oil
AssigneeUop LLC
InventorsBeckay J. Mezza, Alakananda Bhattacharyya, F. Stephen Lupton
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Abstract
A process for removing a metal from a tallow feed includes contacting the tallow feed comprising the metal with a tallow oil-immiscible ionic liquid to produce a tallow oil and TALLOW-immiscible ionic liquid mixture, and separating the mixture to produce a tallow oil effluent having a reduced metal content relative to the tallow feed. The metals removed include iron, aluminum, calcium, magnesium, sodium, zinc, and potassium.
Claims17
A process for removing iron from a tallow oil comprising:
- a) contacting the tallow oil comprising iron with a tallow-immiscible ionic liquid to produce a mixture comprising the tallow oil and the tallow-immiscible ionic liquid, the tallow-immiscible ionic liquid comprising at least one of a imidazolium ionic liquid, a phosphonium ionic liquid, and a pyridinium ionic liquid diluted with from 0 to 95% water;
- and
- b) separating the mixture to produce a tallow oil effluent and a tallow-immiscible ionic liquid effluent, the tallow-immiscible ionic liquid effluent comprising the metal.
Dependencies are inferred from the claim text.