Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with a
zeolite catalyst
    59.
    发明授权
    Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with a zeolite catalyst 失效
    用沸石催化剂制造1,4-双(4-苯氧基苯甲酰基)苯的方法

    公开(公告)号:US4835319A

    公开(公告)日:1989-05-30

    申请号:US218941

    申请日:1988-07-14

    CPC分类号: C07C45/46 C07C45/81

    摘要: 1,4-Bis(4-phenoxybenzoyl)benzene is made in a heterogeneous system by a reaction of diphenyl ether with 1,4-benzenedicarbonyl chloride at 190.degree.-250.degree. C. in the presence of a zeolite catalyst having a ring structure containing 12 oxygen atoms, which can be either an activated zeolite in hydrogen form or an iron-exchanged zeolite, which zeolite can be readily separated from the hot liquid phase in the reaction mixture. The mole ratio of diphenyl ether to 1,4-dicarbonyl chloride, when the catalyst is in hydrogen form, is about 50-80:1; when the catalyst is in iron-exhcanged form, it is about 10-50:1, and the weight ratio of 1,4-benzenedicarbonyl chloride to zeolite in hydrogen form is 3:1 to 1:2, while the ratio of 1,4-benzenedicarbonyl chloride to zeolite in iron-exchanged form is 10:1 to 1:32. The product readily crystallizes in a high state of purity from the cooled solution. 1,4-Bis(4-phenoxybenzoyl)benzene is a vaulable intermediate in the synthesis of polyetherketone resins.

    Catalyst for the pyrolysis of hydrocarbons
    60.
    发明授权
    Catalyst for the pyrolysis of hydrocarbons 失效
    碳氢化合物热解催化剂

    公开(公告)号:US4361502A

    公开(公告)日:1982-11-30

    申请号:US25541

    申请日:1979-03-30

    IPC分类号: B01J29/20 C10G11/05

    摘要: A catalyst, for the catalytic pyrolysis of hydrocarbons to olefins and diolefins at temperatures in the range of 600.degree.-750.degree. C. and pressures of 0.1 to 20 atmospheres, is a bifunctional synthetic modified mordenite zeolite of the formula (yH.zM.uNa) O.Al.sub.2 O.sub.3.SiO.sub.2 wherein M is Cu, Ag or Co/2 and u+y+z approach or equal 2. Good yields of ethylene and propylene are obtained from hydrocarbon feedstocks having boiling points up to 550.degree. C.

    摘要翻译: 用于在600-750℃的温度和0.1至20个大气压的压力下将烃催化裂解成烯烃和二烯烃的催化剂是式(yH.zM.uNa)的双功能合成改性的丝光沸石 )O.Al2O3.SiO2,其中M是Cu,Ag或Co / 2,u + y + z接近或等于2.乙烯和丙烯的良好产率是从沸点高达550℃的烃原料获得的。