Method and composition for sequestration of arsenic
AssigneeDundee Sustainable Technologies Inc.
InventorsKhalil Nasrallah, Bertrand Dubreuil, Jean-Marc Lalancette, David Lemieux
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Abstract
There is provided a method and composition for sequestration of arsenic, the method comprising melting an arsenic-containing material in the presence of iron oxide and glass, and yielding a resulting glass incorporating arsenic. The resulting glass has an arsenic content comprised in a range between 1 and 25% w/w and an iron content comprised in a range between 8 and 20% w/w.
Claims14
A method for the vitrification of arsenious oxide from an arsenic-containing material, comprising selecting an iron oxide-containing material containing at least 15% w/w iron oxide, mixing the arsenic-containing material with the iron oxide-containing material and a glass material into a mixture, and melting the mixture, yielding a resulting glass incorporating arsenic as arsenic oxide.
Dependencies are inferred from the claim text.