High-purity meta-xylene production process
    4.
    发明授权
    High-purity meta-xylene production process 失效
    高纯度二甲苯生产工艺

    公开(公告)号:US06207871B1

    公开(公告)日:2001-03-27

    申请号:US08995270

    申请日:1997-12-19

    CPC classification number: C07C5/2767 C07C5/2775 C07C2529/40 C07C15/08

    Abstract: There is provided a process for producing high-purity meta-xylene by converting a hydrocarbon feedstream comprising at least about 5 wt % ethylbenzene and at least about 20 wt % meta-xylene, over a single molecular sieve catalyst under ethylbenzene conversion conditions sufficient to provide a primary product stream depleted of more than 50% of the ethylbenzene present in the feedstream. The process can further comprise stripping benzene and/or toluene by-products from the primary product stream to provide a secondary product stream comprising at least about 75 wt % mixed ortho-xylene and meta-xylene; and splitting the secondary product stream by removing substantially all of the ortho-xylene present therein to provide a tertiary product stream comprising at least about 95 wt % meta-xylene.

    Abstract translation: 提供了一种通过在乙基苯转化条件下在单分子筛催化剂上转化包含至少约5重量%乙苯和至少约20重量%间二甲苯的烃进料流来生产高纯度间二甲苯的方法,该条件足以提供 在原料流中存在大于50%的乙苯的主要产物流。 该方法还可以包括从初级产物流中汽提苯和/或甲苯副产物以提供包含至少约75重量%混合的邻二甲苯和间二甲苯的次生产物流; 并且通过除去其中存在的基本上所有的邻二甲苯来分离次级产物流,以提供包含至少约95重量%间二甲苯的叔产物流。

    Selective 1,2-diarylethane synthesis
    5.
    发明授权
    Selective 1,2-diarylethane synthesis 失效
    选择性1,2-二芳基乙烷合成

    公开(公告)号:US5453555A

    公开(公告)日:1995-09-26

    申请号:US158172

    申请日:1993-11-22

    CPC classification number: C07C2/864 C07C2529/40 C07C2529/70

    Abstract: There is provided a process for reacting a 2-arylethanol, such as 2-phenethanol, with an aromatic compound, such as toluene, to produce a 1,2-diarylethane, such as 2-phenethyltoluene. The reaction involves the use of a catalyst comprising an acidic solid oxide, such as ZSM-5, zeolite Beta, MCM-22 or ZSM-12.

    Abstract translation: 提供了使2-苯乙醇如2-苯乙醇与芳族化合物如甲苯反应的方法,以制备1,2-二氨基乙烷如2-苯乙基甲苯。 该反应涉及使用包含酸性固体氧化物如ZSM-5,沸石β,MCM-22或ZSM-12的催化剂。

    Synthesis of crystalline ZSM-35
    6.
    发明授权
    Synthesis of crystalline ZSM-35 失效
    结晶ZSM-35的合成

    公开(公告)号:US5174980A

    公开(公告)日:1992-12-29

    申请号:US771571

    申请日:1991-10-04

    CPC classification number: B01J29/65 C01B39/445

    Abstract: This invention relates to a new form of crystalline material identified as having the structure of ZSM-35, to a new and useful method for synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.

    Abstract translation: 本发明涉及一种被认为具有ZSM-35结构的新形式的结晶材料,用于合成所述结晶材料的新的和有用的方法,以及使用根据本文制备的所述结晶材料作为有机化合物的催化剂,例如。 烃化合物,转化。

    Synthesis of crystalline mordenite-type material
    8.
    发明授权
    Synthesis of crystalline mordenite-type material 失效
    结晶丝光沸石型材料的合成

    公开(公告)号:US5173282A

    公开(公告)日:1992-12-22

    申请号:US771573

    申请日:1991-10-04

    CPC classification number: B01J29/04 C01B39/265

    Abstract: This invention relates to a new form of crystalline mordenite-type material, to a new and useful method for synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.

    Abstract translation: 本发明涉及一种新型的结晶丝光沸石型材料,用于合成所述结晶材料的新型和有用的方法,以及使用根据本文制备的所述结晶材料作为有机化合物的催化剂。 烃化合物,转化。

    Synthesis of dioxane
    10.
    发明授权
    Synthesis of dioxane 失效
    二恶烷的合成

    公开(公告)号:US4760154A

    公开(公告)日:1988-07-26

    申请号:US789607

    申请日:1985-10-21

    CPC classification number: C07D319/12

    Abstract: A catalyzed conversion of diethylene glycol to 1,4-dioxane, undertaken over zeolites, ZSM-5, ZSM-23, ZSM-48 and zeolite beta, is characterized by high selectivity.

    Abstract translation: 在沸石,ZSM-5,ZSM-23,ZSM-48和β沸石上进行的二乙二醇转化为1,4-二恶烷的催化转化具有高选择性。

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