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US 2013/0158279 A1Published application
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.
Claims20
A process for removing a metal from a tallow oil comprising:
- a) contacting the tallow oil comprising the metal 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.
A process for removing a metal from a tallow oil comprising:
- a) contacting the tallow oil comprising the metal with a tallow-immiscible ionic liquid to produce a mixture comprising the tallow 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;
- 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;
- and at least one of:
- c) washing at least a portion of the tallow oil effluent with water to produce a washed tallow stream and a spent water stream;
- d) contacting the tallow-immiscible ionic liquid effluent with a regeneration solvent and separating the tallow-immiscible ionic liquid effluent from the regeneration solvent to produce an extract stream comprising the metal and a regenerated tallow-immiscible ionic liquid stream;
- and
- e) drying at least a portion of at least one of the tallow-immiscible ionic liquid effluent;
- the spent water stream, and the regenerated tallow-immiscible ionic liquid stream to produce a dried tallow-immiscible ionic liquid stream.
5 more elements
Dependencies are inferred from the claim text.