CATALYST FOR PREPARING CHLORINE BY OXIDATION OF HYDROGEN CHLORIDE AND PREPARATION THEREOF
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United States of America Patent
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app pub date -
Jun 3, 2011
filing date -
Nov 18, 2010
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Abandoned
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Abstract
The present invention relates to a catalyst for producing chlorine by oxidation of hydrogen chloride and a method for preparing the same. The catalyst comprises a support and active ingredients that comprise 1-20 wt % of copper, 0.01-5 wt % of boron, 0.1-10 wt % of alkali metal element(s), 0.1-15 wt % of one or more rare earth elements, and 0-10 wt % of one or more elements selected from magnesium, calcium, barium, manganese, iron, nickel, cobalt, zinc, ruthenium or titanium based on the total weight of the catalyst. The catalyst is prepared by a two-step impregnation method. Comparing with the available catalysts of the same type, the catalyst according to the present invention has greatly improved conversion and stability.
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