Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalyst
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United States of America Patent
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Aug 6, 2002
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N/A
app pub date -
May 31, 1995
filing date -
May 31, 1994
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Expired
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Abstract
A catalyst for the production of acrylic acid by the vapor-phase catalytic oxidation of acrolein or acrolein-containing gas and a method for the production of acrylic acid by the use of this catalyst are provided. The catalyst of this invention comprises (A) a catalyst having Mo and V as essential components and used for the production of acrylic acid by vapor-phase catalytic oxidation of acrolein and (B) a solid acid having acid strength (Ho) of not more than -11.93. Since this catalyst excels in catalytic activity and service life, it allows acrylic acid to be produced stably at a high yield for a long time.
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