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    • 31. 发明授权
    • Aromatic carboxylic anhydride catalyst
    • 芳香族羧酸酐催化剂
    • US4931572A
    • 1990-06-05
    • US353252
    • 1989-05-17
    • Ramzi Y. SalehIsrael E. Wachs
    • Ramzi Y. SalehIsrael E. Wachs
    • B01J23/04B01J23/22C07C51/265
    • B01J23/22B01J23/04C07C51/265
    • In accordance with the process of this invention, an improved titanium dioxide rutile-based catalyst for molecular oxidation of a hydrocarbon to form the corresponding carboxylic anhydrides is prepared by the steps of (a) forming a catalyst precursor by depositing on titanium dioxide solids in the rutile form a discontinuous monolayer amount of at least one source of a Group IA metal oxide; (b) calcining the thus-formed catalyst precursor under conditions sufficient to convert the Group IA metal oxide source into the corresponding Group IA metal oxide; (c) depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium oxide source which is convertible into vanadium oxide upon heating; and (d) calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.
    • 根据本发明的方法,通过以下步骤制备用于烃的分子氧化以形成相应的羧酸酐的改进的二氧化钛金红石型催化剂:(a)通过沉积在二氧化钛固体中形成催化剂前体 金红石形成不连续单层量的至少一种IA族金属氧化物源; (b)在足以将IA族金属氧化物源转化成相应的IA族金属氧化物的条件下煅烧如此形成的催化剂前体; (c)在煅烧的催化剂前体上沉积催化有效量的至少一种氧化钒源,其在加热时可转化成氧化钒; 和(d)在足以将钒化合物转化为氧化钒的条件下煅烧钒沉积固体。
    • 32. 发明授权
    • Process for preparing aromatic carboxylic anhydride
    • 制备芳香族羧酸酐的方法
    • US4864036A
    • 1989-09-05
    • US213524
    • 1988-06-30
    • Ramzi Y. SalehIsreal E. Wachs
    • Ramzi Y. SalehIsreal E. Wachs
    • B01J23/20B01J23/22B01J37/02C07C51/265
    • C07C51/265B01J23/20B01J23/22B01J37/024
    • In accordance with the process of this invention, an improved catalyst for molecular oxidation of a hydrocarbon to form the corresponding carboxylic anhydrides is prepared by the steps of (a) forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form a discontinuous monolayer amount of at least one source of a Group VIB metal oxide; (b) calcining the thus-formed catalyst precursor under conditions sufficient to convert the Group VIB metal oxide source into the corresponding group VIB metal oxide; (c) depositing upon amount of at least one vanadium oxide source which is calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.
    • 根据本发明的方法,通过以下步骤制备用于烃的分子氧化以形成相应的羧酸酐的改进的催化剂:(a)通过在锐钛矿的二氧化钛固体上沉积形成不连续的单层形成催化剂前体 至少一种VIB族金属氧化物源的量; (b)在足以将VIB族金属氧化物源转化为相应的VIB族金属氧化物的条件下煅烧如此形成的催化剂前体; (c)在足以将钒化合物转化为氧化钒的条件下,沉积一定量的至少一种钒氧化物源,该钒氧化物源正在煅烧钒沉积固体。
    • 34. 发明授权
    • Process for preparing carboxylic anhydride using improved catalysts
    • 使用改进的催化剂制备羧酸酐的方法
    • US4582912A
    • 1986-04-15
    • US655745
    • 1984-10-01
    • Ramzi Y. SalehIsrael E. Wachs
    • Ramzi Y. SalehIsrael E. Wachs
    • C07D307/89B01J23/20B01J23/22B01J37/02C07B61/00C07C51/265C07D493/04
    • C07C51/265B01J23/20B01J23/22B01J37/024
    • In accordance with the process of this invention, an improved catalyst for molecular oxidation of a hydrocarbon to form the corresponding carboxylic anhydrides is prepared by the steps of (a) forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form at least a monolayer amount of at least one source of vanadium oxide, (b) calcining the thus-formed catalyst precursor under conditions sufficient to convert the vanadium oxide source into the oxide form, (c) depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium oxide source which is convertible into vanadium oxide upon heating and at least one metal oxide source selected from the group consisting of oxides of Sb, Ga, Ge, In, Tl, Pb, Se, Te, P and Bi, which is convertible into the corresponding metal oxide upon heating and which is reactive with V.sub.2 O.sub.5, and (d) calcining the vanadium and reactive metal containing catalyst solids under conditions sufficient to form the corresponding vanadium oxide and reactive metal oxides.
    • 根据本发明的方法,通过以下步骤制备用于烃的分子氧化以形成相应的羧酸酐的改进的催化剂:(a)通过以锐钛矿形式沉积在二氧化钛固体上至少形成催化剂前体 单层量的至少一种氧化钒源,(b)在足以将钒氧化物源转化为氧化物形式的条件下煅烧由此形成的催化剂前体,(c)在煅烧的催化剂前体上沉积催化有效量的 至少一种氧化钒源,其在加热时可转化为氧化钒,以及选自Sb,Ga,Ge,In,Tl,Pb,Se,Te,P和Bi的氧化物中的至少一种金属氧化物源,其是 加热时可转化成相应的金属氧化物,并与V2O5反应,和(d)在足以满足以下条件的条件下煅烧含钒和活性金属的催化剂固体: 形成相应的氧化钒和活性金属氧化物。