Homogeneous carbonylation catalyst and process using the catalyst
    7.
    发明授权
    Homogeneous carbonylation catalyst and process using the catalyst 失效
    均相羰基化催化剂和使用催化剂的方法

    公开(公告)号:US07449597B1

    公开(公告)日:2008-11-11

    申请号:US10968537

    申请日:2004-10-19

    IPC分类号: C07C51/14

    CPC分类号: C07C51/14

    摘要: A catalyst useful for carbonylation of olefins has been developed. The catalyst comprises a palladium compound, e.g. PdIm4Cl2, where Im is imidazole and HCl dissolved in water or an alcohol. Carbonylation using this catalyst involves contacting an olefin stream preferably in a solvent such as o-xylene with the catalyst and carbon monoxide at carbonylation conditions to provide a carboxylic acid or an ester. When the catalyst solvent is water one can obtain an acid as the product, but when the catalyst solvent is an alcohol one obtains an ester as the product.

    摘要翻译: 已经开发了可用于烯烃羰基化的催化剂。 催化剂包括钯化合物,例如 其中Im是咪唑和HCl溶解在水或醇中的盐酸盐。 使用该催化剂的羰基化包括使烯烃流优选在溶剂例如邻二甲苯中与催化剂和一氧化碳在羰基化条件下接触以提供羧酸或酯。 当催化剂溶剂为水时,可以得到酸作为产物,但是当催化剂溶剂为醇时,得到酯作为产物。

    Sapo catalysts and use thereof in methanol conversion processes
    8.
    发明授权
    Sapo catalysts and use thereof in methanol conversion processes 失效
    Sapo催化剂及其在甲醇转化过程中的应用

    公开(公告)号:US5248647A

    公开(公告)日:1993-09-28

    申请号:US793874

    申请日:1991-12-23

    申请人: Paul T. Barger

    发明人: Paul T. Barger

    IPC分类号: B01J29/85 C07C1/20

    摘要: Hydrothermal treatment of silicoaluminophosphate molecular sieves at temperatures in excess of about 700.degree. C. for periods sufficient to destroy a large proportion of their acid sites while retaining at least 80 percent of their crystallinity is found to result in a catalyst for converting methanol to lower olefins having increased catalyst life, increased selectivity for C.sub.2 -C.sub.3 olefins and decreased selectivity for paraffin production than the untreated SAPO-n starting composition.

    摘要翻译: 在超过约700℃的温度下水热处理硅铝磷酸盐分子筛,足以破坏其大部分酸性位点同时保持其至少80%的结晶度的时间段被发现导致用于将甲醇转化为低级烯烃的催化剂 与未处理的SAPO-n起始组合物相比,催化剂寿命增加,C2-C3烯烃的选择性提高,石蜡生产的选择性降低。

    Process for converting methanol to olefins using an improved metal
aluminophosphate catalyst
    9.
    发明授权
    Process for converting methanol to olefins using an improved metal aluminophosphate catalyst 失效
    使用改进的金属磷酸铝催化剂将甲醇转化为烯烃的方法

    公开(公告)号:US5191141A

    公开(公告)日:1993-03-02

    申请号:US862018

    申请日:1992-04-01

    IPC分类号: B01J29/84 B01J29/85 C07C1/20

    摘要: This invention relates to an improved process for converting methanol to light olefins using an ELAPO catalyst. The catalyst comprises a metal aluminophosphate molecular sieve having the empirical formula (EL.sub.x Al.sub.y P.sub.z)O.sub.2 where EL is a metal and x,y and z are mole fractions of EL, Al and P respectively. Preferred metals are silicon, magnesium and cobalt, with silicon especially preferred. The molecular sieve catalyst is composed of particles at least 50% of which have a particle size less than 1.0 .mu.m and no more than 10% of the particles have a particle size greater than 2.0 .mu.m. It is also preferred that the metal content (x) be from about 0.005 and 0.05 mole fraction.

    摘要翻译: 本发明涉及使用ELAPO催化剂将甲醇转化为轻质烯烃的改进方法。 催化剂包括具有经验式(ELxAlyPz)O 2的金属铝磷酸盐分子筛,其中EL是金属,x,y和z分别是EL,Al和P的摩尔分数。 优选的金属是硅,镁和钴,特别优选硅。 分子筛催化剂由至少50%的粒径小于1.0μm且不超过10%的颗粒具有大于2.0μm的粒度的颗粒组成。 金属含量(x)也优选为约0.005和0.05摩尔分数。

    Process for the isomerization of dimethylnaphthalenes
    10.
    发明授权
    Process for the isomerization of dimethylnaphthalenes 失效
    二甲基萘异构化的方法

    公开(公告)号:US4777312A

    公开(公告)日:1988-10-11

    申请号:US138249

    申请日:1987-12-28

    摘要: Superior isomerization performance is obtained in an isomerization process employing a catalytic composition comprising a Group VIII noble metal and a hydrogen form mordenite incorporated with alumina. The superior isomerization performance is achieved using a catalyst composition having a surface area of at least 580 m.sup.2 /g. A novel method of preparing an isomerization catalyst having a surface area of at least 580 m.sup.2 /g is characterized by contacting a formed catalytic composite with an acidic aqueous solution prior to addition of the Group VIII noble metal. The isomerization process is particularly useful in the isomerization of a dimethylnaphthalene containing feedstock into a product that contains a higher concentration of the 2,6-dimethylnaphthalene isomer than did the feedstock.

    摘要翻译: 在使用包含VIII族贵金属和与氧化铝结合的氢形式丝光沸石的催化组合物的异构化方法中获得了优异的异构化性能。 使用具有至少580m 2 / g的表面积的催化剂组合物来实现优异的异构化性能。 制备具有至少580m 2 / g的表面积的异构化催化剂的新方法的特征在于,在加入第VIII族贵金属之前,使形成的催化剂复合物与酸性水溶液接触。 异构化方法特别可用于将含二甲基萘的原料异构化成含有比原料更高浓度的2,6-二甲基萘异构体的产物。