Catalyst composition, a process for preparing the catalyst composition and a use of the catalyst composition
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United States of America Patent
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Jan 13, 2015
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app pub date -
Aug 14, 2008
filing date -
Mar 31, 2003
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Abstract
A catalyst composition comprising a support having a surface area of at least 500 m2/kg, and deposited on the support:
- silver metal,a metal or component comprising rhenium, tungsten, molybdenum or a nitrate- or nitrite-forming compound, anda Group IA metal or component comprising a Group IA metal having an atomic number of at least 37, and in addition potassium,wherein the value of the expression (QK/R)+QHIA is in the range of from 1.5 to 30 mmole/kg, wherein QHIA and QK represent the quantities in mmole/kg of the Group IA metal having an atomic number of at least 37 and potassium, respectively, present in the catalyst composition, the ratio of QHIA to QK is at least 1:1, the value of QK is at least 0.01 mmole/kg, and R is a dimensionless number in the range of from 1.5 to 5, the units mmole/kg being relative to the weight of the catalyst composition.
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