US 6,191,068 B1Granted

Method and compositions for stabilization of heavy metals, acid gas removal and pH control in contaminated matrices

AssigneeBhat Industries, Inc.

InventorVasanth K. Bhat

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Abstract

A composition comprising magnesium sulfite, triple super phosphate, and one of limestone and hydroboracite, useful for heavy metal stabilizing, controlling pH and/or removing acid gas from a solid, semi-solid, liquid or gaseous matrix.

Claims12

Dependent claims

A composition, comprising magnesium sulfite, triple super phosphate, and at least one of limestone and hydroboracite.

Dependencies are inferred from the claim text.

Facts

Application: 09/244,996Filed 4 Feb 1999
Granted: 20 Feb 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

A62D 3/33
By reacting with chemical agents: by chemical fixing the harmful substance, e.g. by chelation or complexation
B01J 20/0248
Comprising compounds of metals not provided for in B01J20/04: compounds of B, Al, Ga, In, Tl
B01J 20/043
Comprising compounds of alkali metals, alkaline earth metals or magnesium: carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
B01J 20/045
Comprising compounds of alkali metals, alkaline earth metals or magnesium: containing sulfur, e.g. sulfates, thiosulfates, gypsum

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No related US applications are recorded in the indexed filing history.

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