Methods of extracting iron species from liquid hydrocarbons

Details Methods of extracting iron species from liquid hydrocarbons Methods of extracting iron species from liquid hydrocarbons

C - Chemistry, Metallurgy

10

G

C10G 29/22 (2006.01) C07C 7/152 (2006.01) C07C 17/38 (2006.01) C10G 21/16 (2006.01)

Patent

CA 2045376

BTZ 025 P2 Abstract of the Disclosure Methods of extracting iron species, such as iron naphthenate, and iron sulfides, from a liquid hydrocarbon, such as crude oil are disclosed. A chelant selected from oxalic or citric acid is added directly to the liquid hydrocarbon and mixed therewith. Then, wash water is added to form a water in oil emulsion. The emulsion is resolved, with iron laden aqueous phase being separated.

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