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15 条记录 (耗时 0.039 秒)

    Preparation of anhydrous TaF.sub.5
    11.
    发明授权
    Preparation of anhydrous TaF.sub.5 失效
    制备无水TaF {HD 5

    公开(公告)号：US4124692A

    公开(公告)日：1978-11-07

    申请号：US864687

    申请日：1977-12-27

    申请人： Chang J. Kim ,  Dan Farcasiu

    发明人： Chang J. Kim ,  Dan Farcasiu

    IPC分类号： C01G35/02 ,  C01G35/00

    CPC分类号： C01G35/02

    摘要： Anhydrous TaF.sub.5 can be synthesized from a mixture comprising water and fluorotantalic acids by contacting said mixture with a dehydrating agent. Preferably, said mixture is formed by contacting tantalum oxides, tantalum oxide-halides or mixtures thereof with HF. The dehydrating agent should be a compound that contains carbon-chlorine bonds, carbon-bromine bonds or mixtures thereof.

    摘要翻译： 无水TaF5可以通过使所述混合物与脱水剂接触，由含有水和氟陶瓷酸的混合物合成。 优选地，所述混合物通过使氧化钽，氧化钽 - 卤化物或其与HF的混合物接触而形成。 脱水剂应为含有碳 - 氯键，碳 - 溴键或其混合物的化合物。

    Method for preparing a group IVB, VB or VIB metal oxide on inorganic refractory oxide support catalyst and the product prepared by said method
    13.
    发明授权
    Method for preparing a group IVB, VB or VIB metal oxide on inorganic refractory oxide support catalyst and the product prepared by said method 失效
    在无机耐火氧化物载体催化剂上制备IVB族，VB族或VIB族金属氧化物的方法以及通过所述方法制备的产物

    公开(公告)号：US4269737A

    公开(公告)日：1981-05-26

    申请号：US82316

    申请日：1979-10-05

    申请人： Dane C. Grenoble ,  Chang J. Kim ,  Lawrence L. Murrell

    发明人： Dane C. Grenoble ,  Chang J. Kim ,  Lawrence L. Murrell

    IPC分类号： B01J21/06 ,  B01J21/12 ,  B01J23/20 ,  B01J23/26 ,  B01J23/30 ,  B01J37/10 ,  B01J23/24

    CPC分类号： B01J21/066 ,  B01J21/06 ,  B01J21/063 ,  B01J21/12 ,  B01J23/20 ,  B01J23/26 ,  B01J23/30 ,  B01J37/10

    摘要： An acid catalyst comprising a catalytic component selected from the group consisting of oxides of tungsten, niobium and mixtures thereof and tungsten or niobium oxides in combination with one or more additional metal oxides selected from the group consisting of tantalum oxide, hafnium oxide, chromium oxide, titanium oxide and zirconium oxide on an inorganic refractory oxide support is prepared by depositing by means known in the art a metal oxide precursor salt on an inorganic refractory metal oxide which is not itself an acid cracking catalyst or by intimately mixing a metal oxide precursor salt with a refractory metal oxide support precursor salt, converting the salt or salts to the respective metal oxides and subjecting the resultant combination to steaming at elevated temperatures prior to use. Catalysts prepared in this manner exhibit enhanced activity and selectivity as compared to conventional acid catalysts. They also exhibit remarkable resistance to coke make.

    摘要翻译： 一种酸催化剂，其包含选自钨，铌及其混合物的氧化物和钨或铌氧化物的催化组分与一种或多种另外的金属氧化物的组合，所述另外的金属氧化物选自氧化钽，氧化铪，氧化铬， 无机耐火氧化物载体上的氧化钛和氧化锆通过本领域已知的方法将金属氧化物前体盐沉积在本身不是酸裂化催化剂的无机难熔金属氧化物上，或者通过将金属氧化物前体盐与 难熔金属氧化物载体前体盐，将盐或盐转化成各自的金属氧化物，并使所得组合物在使用前在升高的温度下蒸汽。 与常规酸催化剂相比，以这种方式制备的催化剂表现出增强的活性和选择性。 它们也表现出显着的抗焦炭性能。

    Acid catalyzed hydrocarbon conversion processes utilizing a catalyst comprising a Group IVB, VB or VIB metal oxide on an inorganic refractory oxide support
    14.
    发明授权
    Acid catalyzed hydrocarbon conversion processes utilizing a catalyst comprising a Group IVB, VB or VIB metal oxide on an inorganic refractory oxide support 失效
    在无机耐火氧化物载体上使用含有IVB族，VB族或VIB族金属氧化物的催化剂的酸催化烃转化方法

    公开(公告)号：US4233139A

    公开(公告)日：1980-11-11

    申请号：US927828

    申请日：1978-07-25

    申请人： Lawrence L. Murrell ,  Chang J. Kim ,  Dane C. Grenoble

    发明人： Lawrence L. Murrell ,  Chang J. Kim ,  Dane C. Grenoble

    IPC分类号： B01J23/20 ,  B01J23/30 ,  B01J37/10 ,  C10G11/04 ,  C10G47/12 ,  C10G49/04 ,  C10G49/18

    CPC分类号： C10G11/04 ,  B01J23/20 ,  B01J23/30 ,  B01J37/10 ,  C10G47/12

    摘要： It has been discovered and forms the basis of the disclosure that various acid catalyzed hydrocarbon conversion processes such as catalytic cracking of gas oil; xylene isomerization; toluene disproportionation; dealkylation of aromatics; ethylene, butylene, isobutylene, propylene polymerization; olefin isomerization; alcohol dehydration; olefin hydration; alkylation; heavy ends cat cracking, etc. are dramatically improved insofar as percent conversion, and selectivity are concerned by the use of a catalyst selected from the group consisting of the oxides of tungsten, niobium and mixtures thereof, and tungsten or niobium oxides in combination with one or more additional metal oxides selected from the group consisting of tantalum oxide, hafnium oxide, chromium oxide, titanium oxide and zirconium oxide, supported on an inorganic refractory oxide support. These catalysts may be prepared by the methods known in the art, i.e., incipient wetness, impregnation, coprecipitation, etc. of the metal oxide precursor onto or with the supports followed by conversion into the oxide form. Before use, the metal oxide/support combination is preferably subjected to steaming at elevated temperatures either before introduction into the reactor or in situ in the process reactor. Conventional catalytic cracking catalysts are unstable at the elevated temperatures where the metal oxide/support combinations of the present invention are uniquely stable.

    摘要翻译： 已经发现并形成了各种酸催化烃转化过程如瓦斯油催化裂化的公开的基础; 二甲苯异构化; 甲苯歧化; 芳烃脱烷基化; 乙烯，丁烯，异丁烯，丙烯聚合; 烯烃异构化; 酒精脱水; 烯烃水合; 烷基化; 通过使用选自钨，铌及其混合物的氧化物的催化剂和钨或铌氧化物与一种或多种氧化物的组合，可以显着改善重馏分猫裂解等 或更多的另外的金属氧化物，其选自负责在无机难熔氧化物载体上的氧化钽，氧化铪，氧化铬，氧化钛和氧化锆。 这些催化剂可以通过本领域已知的方法制备，即金属氧化物前体在载体上或与载体上的初始润湿，浸渍，共沉淀等，然后转化为氧化物形式。 在使用之前，金属氧化物/载体组合物优选在引入反应器之前或在加工反应器中原位在高温下进行蒸汽蒸发。 常规的催化裂化催化剂在本发明的金属氧化物/载体组合是独特稳定的高温下是不稳定的。