Preparation of 2-halo-1-alkenes and acrylate esters from hydrocarbon
streams
    11.
    发明授权
    Preparation of 2-halo-1-alkenes and acrylate esters from hydrocarbon streams 失效
    从烃流中制备2-卤代-1-烯烃和丙烯酸酯

    公开(公告)号:US4480121A

    公开(公告)日:1984-10-30

    申请号:US411726

    申请日:1982-08-26

    IPC分类号: C07C17/08 C07C67/36

    CPC分类号: C07C17/08

    摘要: The invention is a process for preparing a 2-halo-1-alkene comprising contacting a hydrocarbon stream with a hydrogen halide, in the presence of water and an effective amount of a catalyst, at a temperature between about 20.degree. C. and about 400.degree. C., wherein; the hydrocarbon stream comprises a 1,2-diene, a terminal acetylene or mixtures thereof, represented by the formulas CH.sub.2 .dbd.C.dbd.CH--R or CH.tbd.C--CH.sub.2 --R wherein R is hydrogen, alkyl, cycloalkyl or aryl and may be substituted or unsubstituted; the water is present in an amount capable of maintaining the selectivity of the catalyst for the insertion of the halide on the 2 carbon of the 1,2-diene or terminal acetylene; and the catalyst comprises carbon, silica alumina, aluminosilicates, silica gel, silica, silica magnesia, silicalite, group IIIA, IIIB, IVA, IVB or V metal oxides or rare earth oxides.The invention further includes the additional step of preparing an acrylate ester by contacting the 2-halo-1-alkene, with carbon monoxide and an esterifying agent such as an alcohol, phenol, carbonate, or (poly)glycol monoether, in the presence of a group VIII metal catalyst and a halogen acceptor.

    摘要翻译: 本发明是制备2-卤代-1-烯烃的方法,包括在约20℃至约400℃的温度下,在水和有效量的催化剂存在下使烃流与卤化氢接触 ℃。 烃流包含由式CH 2 = C = CH-R或CH 3 CH 2 CH 2 -R表示的1,2-二烯,末端乙炔或其混合物,其中R是氢,烷基,环烷基或芳基,并且可以是 取代或未取代的; 水以能维持催化剂选择性的量存在,用于将卤素插入1,2-二烯或末端乙炔的2碳上; 催化剂包括碳,二氧化硅氧化铝,硅铝酸盐,硅胶,二氧化硅,二氧化硅氧化镁,硅沸石,IIIA,IIIB,IVA,IVB或V族金属氧化物或稀土氧化物。 本发明还包括通过使2-卤代-1-烯与一氧化碳和酯化剂如醇,苯酚,碳酸酯或(聚)二醇单醚接触而制备丙烯酸酯的附加步骤,在 VIII族金属催化剂和卤素受体。

    Process for hydrogenating aromatic polymers
    12.
    发明授权
    Process for hydrogenating aromatic polymers 有权
    氢化芳族聚合物的方法

    公开(公告)号:US06376622B1

    公开(公告)日:2002-04-23

    申请号:US09717868

    申请日:2000-11-21

    申请人: Dennis A. Hucul

    发明人: Dennis A. Hucul

    IPC分类号: C08F804

    摘要: The present invention is directed to a hydrogenation catalyst and a process for hydrogenating an aromatic polymer having a number average molecular weight (Mn) of from 40,000 to less than 120,000 comprising contacting the aromatic polymer with a hydrogenating agent in the presence of a silica supported metal hydrogenation catalyst, characterized in that the silica has a pore size distribution such that at least 95 percent of the pore volume is defined by pores having diameter from 300 to 1000 angstroms, less than 4 percent of the pore volume is defined by pores having a diameter of 200 angstroms or less and at least 80 percent aromatic hydrogenation is achieved.

    摘要翻译: 本发明涉及氢化催化剂和数均分子量(Mn)为40,000至小于120,000的芳族聚合物的氢化方法,包括在二氧化硅负载金属存在下使芳族聚合物与氢化剂接触 氢化催化剂,其特征在于二氧化硅具有孔径分布,使得孔体积的至少95%由直径为300至1000埃的孔限定,孔体积的小于4%由具有直径的孔 为200埃或更低,并且达到至少80%的芳族氢化。

    Process for hydrogenating aromatic polymers
    13.
    发明授权
    Process for hydrogenating aromatic polymers 失效
    氢化芳族聚合物的方法

    公开(公告)号:US06172165B2

    公开(公告)日:2001-01-09

    申请号:US09122359

    申请日:1998-07-24

    IPC分类号: C08F804

    CPC分类号: C08F8/04 C08F12/08

    摘要: The present invention is a process of hydrogenating high molecular weight aromatic polymers comprising hydrogenating the high molecular weight aromatic polymer in the presence of a silica supported metal hydrogenation catalyst, characterized in that the silica has a pore size distribution such that at least 98 percent of the pore volume is defined by pores having diameter of greater than 600 angstroms.

    摘要翻译: 本发明是一种氢化高分子量芳族聚合物的方法,包括在二氧化硅载体金属加氢催化剂存在下氢化高分子量芳族聚合物,其特征在于二氧化硅的孔径分布使得至少98% 孔体积由直径大于600埃的孔限定。

    Process for hydrogenating aromatic polymers
    14.
    发明授权
    Process for hydrogenating aromatic polymers 失效
    氢化芳族聚合物的方法

    公开(公告)号:US6090359A

    公开(公告)日:2000-07-18

    申请号:US24345

    申请日:1998-02-17

    申请人: Dennis A. Hucul

    发明人: Dennis A. Hucul

    摘要: The present invention is a process of hydrogenating high molecular weight aromatic polymers comprising hydrogenating the high molecular weight aromatic polymer in the presence of a silica supported metal hydrogenation catalyst, characterized in that the silica has a pore size distribution such that at least 98 percent of the pore volume is defined by pores having diameter of greater than 600 angstroms.

    摘要翻译: 本发明是一种氢化高分子量芳族聚合物的方法,包括在二氧化硅载体金属加氢催化剂存在下氢化高分子量芳族聚合物,其特征在于二氧化硅的孔径分布使得至少98% 孔体积由直径大于600埃的孔限定。

    Preparation of acrylate esters
    17.
    发明授权
    Preparation of acrylate esters 失效
    丙烯酸酯的制备

    公开(公告)号:US4743705A

    公开(公告)日:1988-05-10

    申请号:US839314

    申请日:1986-03-13

    IPC分类号: C07C67/36

    CPC分类号: C07C67/36

    摘要: The invention is a vapor phase process for the preparation of an a-substituted acrylate ester which comprises contacting a haloalkene, wherein the halogen is substituted on an olefinic carbon atom which is further substituted with a C.sub.1-10 alkyl, C.sub.3-10 cycloalkyl, C.sub.6-10 aryl, C.sub.7-10 alkaryl, C.sub.7-10 aralkyl, cyano, trihalomethyl group, with an alcohol or an ether, and carbon monoxide in the presence of a heterogeneous catalyst which comprises palladium, platinum, nickel, ruthenium or rhodium, on a support, under conditions such that an a-substituted acrylate ester and a hydrocarbyl halide is prepared wherein the catalyst productivity is 0.06 g of product per gram of catalyst per hour or greater.

    摘要翻译: 本发明是一种用于制备α-取代的丙烯酸酯的气相方法,该方法包括使卤代烯烃接触,其中卤素被进一步被C 1-10烷基,C 3-10环烷基,C 6 -10,芳基,C7-10烷芳基,C7-10芳烷基,氰基,三卤代甲基,与醇或醚,和一氧化碳在含有钯,铂,镍,钌或铑的多相催化剂存在下, 在制备α-取代的丙烯酸酯和烃基卤化物的条件下,其中每小时或更多的催化剂生产率为每克催化剂0.06克产物。