Mixed oxide compositions and methods for production of isoolefines

Mixed oxide compositions and methods for production of isoolefines

  • CN 103,608,318 A
  • Filed: 03/07/2012
  • Published: 02/26/2014
  • Est. Priority Date: 03/16/2011
  • Status: Active Application
First Claim
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1. mixeding oxide composition, comprises silicon-aluminium mixed oxide powder and basic metal or alkaline earth metal oxide, and the form of the main or complete primary granule with gathering of this silicon-aluminium mixed oxide powder exists, and whereinA) weight ratio (Al in total primary granule 2o 3/ SiO 2) ttl is 0.002-0.05, preferred 0.003-0.015, more preferably 0.005-0.01, B) weight ratio (Al of the primary granule in the layer that is about 5nm near surperficial thickness 2o 3/ SiO 2) surfacebe less than total primary granule neutralization C) BET surface-area is 50-250 m 2/ g, preferably 100-200 m 2/ g.

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