A silver-catalyst composition, a process for preparing the catalyst composition and a use of the catalyst composition for the epoxidation of ethylene

A silver-catalyst composition, a process for preparing the catalyst composition and a use of the catalyst composition for the epoxidation of ethylene

  • CN 1,774,293 A
  • Filed: 03/30/2004
  • Published: 05/17/2006
  • Est. Priority Date: 03/31/2003
  • Status: Active Application
First Claim
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1. carbon monoxide-olefin polymeric, it comprises that surface area is at least 500 meters 2The carrier of/kilogram and be deposited on following material on this carrier:

  • -silver metal,-comprise the metal of rhenium, tungsten, molybdenum or the compound of component or formation nitrate anion or nitrite anions, reach-comprise that atomic number is the IA family metal or the component of at least 37 IA family metal, and other potassium,Its Chinese style (Q K/ R)+Q HIAValue in 1.5-30 mM/kilogram scope, Q wherein HIAAnd Q KRespectively expression be present in atomic number in this carbon monoxide-olefin polymeric at least 37 IA family metal and potassium be the amount of unit with mM/kilogram, Q HIAWith Q KRatio be at least 1;

    1, Q KValue is at least 0.01 mM/kilogram, and R is the dimensionless number of 1.5-5, and unit mM/kilogram is with respect to the weight meter of this carbon monoxide-olefin polymeric.

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