Patent ID: 6211388
Filing Date: 2001-04-03
Classification: B01J,C07D,Y02P

Abstract:
A method for producing propylene oxide by reacting propylene with ethylbenzene hydroperoxide, wherein said reaction is conducted in the presence of a catalyst comprising a titanium-containing silicon oxide and satisfying all of the following conditions (1) to (6):(1) there is at least one peak showing a interplanar spacing (d) larger than 18 .ANG. in X-ray diffraction;(2) an average pore size is 10 .ANG. or more;(3) a pore size of 90% or more of the total pore volume is 5 to 200 .ANG.;(4) a specific pore volume is 0.2 cm.sup.3 /g or more; and(5) a quaternary ammonium ion represented by the following general formula (I) is used as a template and then said template is removed by calcination operation:[NR.sup.1 R.sup.2 R.sup.3 R.sup.4 ].sup.+ (I)wherein R.sup.1 represents a linear or branched hydrocarbon chain having 2 to 36 carbon atoms, and R.sup.2 to R.sup.4 represent an alkyl group having 1 to 6 carbon atoms; and(6) said catalyst has been subjected to silylation treatment.