Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Junpei Tsuji0
Yoshiaki Itou0
Date of Patent
April 27, 2010
0Patent Application Number
105728780
Date Filed
September 16, 2004
0Patent Primary Examiner
Patent abstract
A process for producing propylene oxide, which comprises the following steps:oxidation step: a step of obtaining cumene hydroperoxide by oxidizing cumene;epoxidation step: a step of obtaining propylene oxide and cumyl alcohol by reacting cumene hydroperoxide obtained in the oxidation step with propylene; andconversion step: a step of obtaining cumene by subjecting cumyl alcohol obtained in the epoxidation step to hydrogenation-containing reaction and recycling the cumene to the oxidation step,wherein a concentration of 1,2-epoxy-2-phenylpropane contained in the reaction mixture after the oxidation step, is 1% by weight or less.
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