Sorbent for removal of heavy metals
AssigneeMobil Oil Corporation
InventorsDarrell D. Whitehurst, Stephen A. Butter, Paul G. Rodewald
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Abstract
A novel use for sorbents involving the selective removal of heavy metals from liquid streams has been discovered. More specifically it has been discovered that these sorbents selectively remove alkyl lead moieties from gasoline. The sorbents are comprised of metal halides (preferably tin tetrachloride or antimony pentachloride) bonded to a suitable substrate through at least one amine or alkyl halide functional group. The sorbents can be effectively regenerated.
Claims6
A composition of matter comprising a substantially solid substrate comprising silicon having a minimum surface area of about 10 m.sup.2 /g to 800 m.sup.2 /g having pores with a minimum pore diameter of about 10 A to 500 A, having N, N', N'-trimethyl-.gamma.-propyl ethylene diamine bonded thereto and a Lewis acid metal halide, which metal is of the group consisting of iron, copper, silver, zinc, cadmium, mercury, aluminum, tin, lead, phosphorus, arsenic, antimony, bismuth, sulfur, selenium and telerium bonded to said amine.
Dependencies are inferred from the claim text.