Patent ID: 7531152

Claim:
A method for converting alkali metals, halogens, phosphorus, boron, heavy metals, sulfur or compounds thereof into substantially water-insoluble mineral products, comprising: providing a waste material containing a component comprising at least one of an alkali metal, phosphorus, boron, a heavy metal, a halogen, sulfur, and a compound thereof; providing a reaction vessel containing a fluidizable reaction bed, wherein said fluidizable reaction bed contains inert particles or carbonaceous materials; heating said reaction bed to an operating temperature of less than 1000° C.; fluidizing said heated reaction bed with a fluidizing gas comprising methane, steam, carbon dioxide, carbon monoxide, oxygen, nitrogen, hydrogen, or a combination thereof, wherein said waste material contains a nitrogen oxide group and a co-reactant is provided in said reaction bed to convert the nitrogen in said nitrogen oxide group to nitrogen gas; providing in at least part of said heated fluidized reaction bed a mixture of said waste material with a co-reactant comprising calcium, magnesium, iron, aluminum, phosphorus, silicon, a calcium compound, clay, kaolin clay, a magnesium compound, an iron compound, an aluminum compound, a phosphorus compound, a silicon compound, or a combination thereof; operating said at least part of said heated fluidized reaction bed under reducing conditions to form a mineral product that is substantially insoluble in ground water and that comprises at least one of Nosean, Nepheline, Fairchildite, Natrofairchildite, Dawsonite, Eitelite, Shortite, Parantisite, Maricite, Buchwaldite, Bradleyite, Combeite, Olenite, Dravite, Ca—Si, Na—(Ca,Fe,Mg)—Si, Na—Al—PO 4 , Na—Mg—PO 4 and other substantially water-insoluble mineral forms comprising at least one of calcium, magnesium, iron, aluminum, phosphorus and silicon, wherein said substantially water-insoluble mineral product is formed in said heated fluidized reaction bed; removing said substantially water-insoluble mineral product from said reaction vessel; and collecting said substantially water-insoluble mineral product for disposal in a storage container.