Process for preparing catalysts for preparation of aromatic carboxylic
anhydrides
    1.
    发明授权
    Process for preparing catalysts for preparation of aromatic carboxylic anhydrides 失效
    制备芳族羧酸酐的催化剂的方法

    公开(公告)号:US4814317A

    公开(公告)日:1989-03-21

    申请号:US102164

    申请日:1987-09-29

    摘要: In accordance with the process of this invention, an improved catalyst for molecular oxidation of an aromatic hydrocarbon to form the corresponding aromatic carboxylic anhydrides is prepared by the steps of forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form a continuous monolayer amount of at least one source of zirconium dioxide, calcining the thus-formed catalyst precursor under conditions sufficient to convert the zirconium oxide source into the oxide form, depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium compound which is convertible into vanadium oxide upon heating and calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.

    摘要翻译: 根据本发明的方法,通过以下步骤制备用于分子氧化芳族烃以形成相应的芳族羧酸酐的改进的催化剂:通过以锐钛矿形式的二氧化钛固体沉积形成连续单层量形成催化剂前体 的至少一种二氧化锆源,在足以将氧化锆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,在煅烧的催化剂前体上沉积催化有效量的至少一种钒化合物,其可转化为 氧化钒加热并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。

    Process of preparing carboxylic anhydride
    2.
    发明授权
    Process of preparing carboxylic anhydride 失效
    制备羧酸酐的方法

    公开(公告)号:US4831164A

    公开(公告)日:1989-05-16

    申请号:US180061

    申请日:1988-04-11

    摘要: In accordance with the process of this invention, an improved catalyst for molecular oxidation of hydrocarbons to form the corresponding carboxylic anhydrides is prepared by the steps of forming a catalyst precursor by depositing on titanium dioxide catalyst solids in the anatase form a continuous monolayer amount of at least one source of titanium oxide, calcining the thus-formed catalyst percursor under conditions sufficient to convert the titanium oxide source into the oxide form, depositing upon the calcined catalyst precursor a continuous monolayer amount of at least one vanadium compound which is convertible into vanadium oxide upon heating and calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.

    摘要翻译: 根据本发明的方法,通过以下步骤制备用于分子氧化烃形成相应的羧酸酐的改进的催化剂:通过在锐钛矿上沉积二氧化钛催化剂固体形成连续单层量的 至少一种氧化钛来源,在足以将氧化钛源转化为氧化物形式的条件下煅烧由此形成的催化剂过氧化物,在煅烧的催化剂前体上沉积连续的单层量的至少一种可转化为氧化钒的钒化合物 在足以将钒化合物转化为氧化钒的条件下加热和煅烧钒沉积固体。

    Aromatic carboxylic anhydride catalyst
    3.
    发明授权
    Aromatic carboxylic anhydride catalyst 失效
    芳香族羧酸酐催化剂

    公开(公告)号:US4791092A

    公开(公告)日:1988-12-13

    申请号:US796707

    申请日:1985-11-12

    摘要: In accordance with the process of this invention, an improved catalyst for molecular oxidation of an aromatic hydrocarbon to form the corresponding aromatc carboxylic anhydrides is prepared by the steps of forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form a discontinuous monolayer amount of at least one source of tantalum oxide, calcining the thus-formed catalyst precursor under conditions sufficient to convert the tantalum oxide source into the oxide form, depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium compound which is convertible into vanadium oxide upon heating and calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.

    摘要翻译: 根据本发明的方法,通过以下步骤制备用于分子氧化芳族烃以形成相应的芳族羧酸酐的改进的催化剂:通过以锐钛矿形式的二氧化钛固体沉积形成不连续单层量形成催化剂前体 的至少一种氧化钽源,在足以将氧化钽源转化为氧化物形式的条件下煅烧如此形成的催化剂前体,在煅烧的催化剂前体上沉积催化有效量的至少一种钒化合物,其可转化为 氧化钒加热并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。

    Process for preparing a catalyst for the preparation of a carboxylic
anhydride
    4.
    发明授权
    Process for preparing a catalyst for the preparation of a carboxylic anhydride 失效
    制备羧酸酐的催化剂的方法

    公开(公告)号:US4835126A

    公开(公告)日:1989-05-30

    申请号:US860155

    申请日:1986-05-06

    摘要: 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.

    摘要翻译: 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。

    Molecular oxidation of aromatic hydrocarbons to the corresponding
anhydrides using an improved catalyst
    5.
    发明授权
    Molecular oxidation of aromatic hydrocarbons to the corresponding anhydrides using an improved catalyst 失效
    使用改进的催化剂将芳族烃分子氧化成相应的酸酐

    公开(公告)号:US4582911A

    公开(公告)日:1986-04-15

    申请号:US626405

    申请日:1984-06-29

    摘要: In accordance with the process of this invention, an improved catalyst for molecular oxidation of an aromatic hydrocarbon to form the corresponding aromatic carboxylic anhydrides is prepared by the steps of forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form a discontinuous monolayer amount of at least one source of tantalum oxide, calcining the thus-formed catalyst precursor under conditions sufficient to convert the tantalum oxide source into the oxide form, depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium compound which is convertible into vanadium oxide upon heating and calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.

    摘要翻译: 根据本发明的方法,通过以下步骤制备用于芳族烃分子氧化以形成相应的芳族羧酸酐的改进的催化剂:通过以锐钛矿形式的二氧化钛固体沉积形成不连续的单层量形成催化剂前体 的至少一种氧化钽源,在足以将氧化钽源转化为氧化物形式的条件下煅烧如此形成的催化剂前体,在煅烧的催化剂前体上沉积催化有效量的至少一种钒化合物,其可转化为 氧化钒加热并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。

    Aromatic carboxylic anhydride catalyst
    6.
    发明授权
    Aromatic carboxylic anhydride catalyst 失效
    芳香族羧酸酐催化剂

    公开(公告)号:US4931572A

    公开(公告)日:1990-06-05

    申请号:US353252

    申请日:1989-05-17

    摘要: 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.

    摘要翻译: 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。

    Catalysts for preparation of aromatic carboxylic anhydrides
    7.
    发明授权
    Catalysts for preparation of aromatic carboxylic anhydrides 失效
    用于制备芳族羧酸酐的催化剂

    公开(公告)号:US4728744A

    公开(公告)日:1988-03-01

    申请号:US782966

    申请日:1985-10-02

    摘要: In accordance with the process of this invention, an improved catalyst for molecular oxidation of an aromatic hydrocarbon to form the corresponding aromatic carboxylic anhydrides is prepared by the steps of forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form a continuous monolayer amount of at least one source of zirconium dioxide, calcining the thus-formed catalyst precursor under conditions sufficient to convert the zirconium oxide source into the oxide form, depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium compound which is convertible into vanadium oxide upon heating and calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.

    摘要翻译: 根据本发明的方法,通过以下步骤制备用于分子氧化芳族烃以形成相应的芳族羧酸酐的改进的催化剂:通过以锐钛矿形式的二氧化钛固体沉积形成连续单层量形成催化剂前体 的至少一种二氧化锆源,在足以将氧化锆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,在煅烧的催化剂前体上沉积催化有效量的至少一种钒化合物,其可转化为 氧化钒加热并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。

    Process for preparing carboxylic anhydride using improved catalysts
    8.
    发明授权
    Process for preparing carboxylic anhydride using improved catalysts 失效
    使用改进的催化剂制备羧酸酐的方法

    公开(公告)号:US4582912A

    公开(公告)日:1986-04-15

    申请号:US655745

    申请日:1984-10-01

    摘要: 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.

    摘要翻译: 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。

    Production of formaldehyde from CH4 and H2S
    10.
    发明授权
    Production of formaldehyde from CH4 and H2S 失效
    从CH4和H2S生产甲醛

    公开(公告)号:US06683221B1

    公开(公告)日:2004-01-27

    申请号:US09937225

    申请日:2002-02-01

    申请人: Israel E. Wachs

    发明人: Israel E. Wachs

    IPC分类号: C07C4528

    摘要: A method wherein a sour natural gas stream can be treated to produce primarily carbon monoxide from methane, and the carbon monoxide and hydrogensulfide are reacted to produce methyl mercaptans, (primarily methanethiol (CH3SH) and a small amount of dimethyl sulfide (CH3SCH3)). The methyl mercaptans preferably are passed in contact with a catalyst comprising a supported metal oxide or a bulk metal oxide in the presence of an oxidizing agent and for a time sufficient to convert at least a portion of the methyl mercaptan to formaldehyde (CH2O), and sulfur dioxide (SO2).

    摘要翻译: 一种方法,其中可以处理酸性天然气流以从甲烷主要产生一氧化碳,并使一氧化碳和硫化氢反应以产生甲硫醇(主要是甲硫醇(CH 3 SH)和少量二甲硫醚(CH 3 SCH 3))。 甲硫醇优选在氧化剂存在下与包含负载型金属氧化物或本体金属氧化物的催化剂接触并持续足以将至少一部分甲硫醇转化成甲醛(CH 2 O)的时间,以及 二氧化硫(SO2)。