Catalyst and method for the synthesis of chlorine dioxide, and method of making catalyst for the synthesis of chlorine dioxide
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United States of America Patent
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Jul 24, 2001
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N/A
app pub date -
Mar 7, 1994
filing date -
Mar 7, 1994
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Expired
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Abstract
Chlorine dioxide is generated from an aqueous solution of sodium chlorite in the presence of a catalyst having a reduced rate of deactivation. The catalyst is preferably palladium, or palladium together with another platinum group metal (e.g., Pd+Pt), or palladium together with a Group IB metal (e.g., Pd+Au) deposited on a support modified by Group IA carbonate salt (e.g., K.sub.2 CO.sub.3) or a Group IIA carbonate salt (e.g., CaCO.sub.3) or a magnesium salt that can be converted to MgO or a support consisting of a Group IA carbonate salt or a Group IIA carbonate salt or a magnesium salt that can be converted to MgO.
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