Fibrous catalyst
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United States of America Patent
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Nov 3, 2015
Grant Date -
Apr 28, 2011
app pub date -
Aug 22, 2008
filing date -
Aug 25, 2007
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Abstract
The present invention provides a method for preparing a fibrous catalyst for the treatment of a waste stream, the method comprising the steps of: (i) treating a fabric comprising polyacrylonitrile fibers with a hydrazine salt and a hydroxylamine salt in the presence of a base to provide a modified fabric; (ii) treating the modified fabric with a base; and (iii) treating the modified fabric with an aqueous solution comprising a sulfate salt of a first metal cation and a salt of a second metal cation, wherein the first metal cation is selected from an iron and nickel cation, and mixtures thereof, and wherein the second metal cation is selected from a lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium, zinc, cadmium, mercury, aluminum, gallium, indium, thallium, tin, lead, antimony and bismuth cation, and mixtures thereof.
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