Inhibiting leaching of metals from catalysts and sorbents and co

Details Inhibiting leaching of metals from catalysts and sorbents and co Inhibiting leaching of metals from catalysts and sorbents and co

1986-05-30

1987-10-20

Hruskoci, Peter

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106 85, 210751, 210901, 210912, 405129, C04B 202

Patent

active

047012196

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 prior to disposal of such spent particulate materials by treatment 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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