Metal oxide catalyst material and processes for making and using same
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United States of America Patent
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Nov 14, 2017
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app pub date -
Mar 4, 2016
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Mar 23, 2015
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Abstract
The present disclosure relates to metal oxide catalyst materials useful, for example, in the ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrylonitrile and methacrylonitrile using such catalyst materials. In certain aspects, a catalyst material is a fused composite of a metal oxide catalyst and nanoparticulate silica, the nanoparticulate silica comprising in the range of about 40 wt % to about 80 wt % of silica having a particle size in the range of 10 nm to 35 nm, and in the range of about 20 wt % to about 60 wt % of silica having a particle size in the range of 36 nm to 80 nm. The metal oxide catalyst can be, for example, a molybdenum-containing mixed metal oxide catalyst.
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