Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Patent
1987-10-02
1991-07-02
Hruskoci, Peter
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
106638, 210751, 210901, 210912, 405129, 423DIG20, C04B 202
Patent
active
050282727
ABSTRACT:
During use in hydrocarbon conversion processes, sorbents, e.g. for carbon and metals, and catalysts become contaminated with metals, e.g. heavy metals such as vanadium, nickel and sodium. Leaching of heavy metals can be sharply reduced by treatment of such spent particulate materials with alkaline earth metal compound, e.g. lime, calcium fluoride, calcium sulfate, and barium chloride. Surprisingly, calcium chloride, calcium carbonate, sodium bicarbonate are relatively ineffective.
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Ashland Oil Inc.
Hruskoci Peter
Welsh Stanley M.
Willson, Jr. Richard C.
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