Process for producing lower aliphatic carboxylic acid ester
    3.
    发明授权
    Process for producing lower aliphatic carboxylic acid ester 失效
    低级脂肪族羧酸酯的制造方法

    公开(公告)号:US06696598B2

    公开(公告)日:2004-02-24

    申请号:US10009900

    申请日:2001-12-14

    IPC分类号: C07C6704

    摘要: A process for producing a lower aliphatic carboxylic acid ester by a gas phase esterification reaction starting from a lower aliphatic carboxylic acid and a lower olefin, comprising adding a lower alcohol corresponding to a hydrate of a lower olefin to the gas phase reaction product, condensing a lower aliphatic carboxylic acid and the lower alcohol and while allowing the conversion into a lower aliphatic carboxylic acid ester to proceed, separating the lower aliphatic carboxylic acid ester. Productivity is increased due to the improvement of the conversion of a lower aliphatic carboxylic acid.

    摘要翻译: 一种由低级脂族羧酸和低级烯烃开始的气相酯化反应生产低级脂肪族羧酸酯的方法,包括将相应于低级烯烃的水合物的低级醇加到气相反应产物中, 低级脂肪族羧酸和低级醇,同时使低级脂族羧酸酯转化为进行,分离低级脂肪族羧酸酯。 由于低级脂肪族羧酸的转化率的提高,生产率提高。

    PROCESS FOR PRODUCTION OF ALLYL ACETATE PRODUCTION CATALYST
    5.
    发明申请
    PROCESS FOR PRODUCTION OF ALLYL ACETATE PRODUCTION CATALYST 有权
    生产乙酸乙酯生产催化剂的方法

    公开(公告)号:US20100099903A1

    公开(公告)日:2010-04-22

    申请号:US12527363

    申请日:2008-04-09

    摘要: An allyl acetate production catalyst comprising at least (a) palladium, (b) gold, (c) a compound containing at least one element selected from copper, nickel, zinc and cobalt, (d) an alkali metal salt compound and (e) a carrier, is produced by a process comprising step 1 in which a homogeneous solution of a palladium-containing compound and a gold-containing compound is supported on a carrier by contact therewith, step 2 in which the carrier obtained in step 1 is contacted with an alkali solution for impregnation, step 3 in which the carrier obtained in step 2 is subjected to reduction treatment, and step 4 in which a compound containing at least one element selected from copper, nickel, zinc and cobalt and an alkali metal salt compound are supported onto the carrier obtained in step 3. The obtained allyl acetate production catalyst has minimal reduction in activity and improved selectivity, when used for production of allyl acetate from propylene, oxygen and acetic acid.

    摘要翻译: 至少包含(a)钯,(b)金,(c)含有至少一种选自铜,镍,锌和钴的元素的化合物的乙酸烯丙酯生产催化剂,(d)碱金属盐化合物和(e) 通过包括步骤1的方法制备载体,其中含钯化合物和含金化合物的均匀溶液通过接触负载在载体上,步骤2将步骤1中获得的载体与 用于浸渍的碱溶液,其中步骤2中获得的载体进行还原处理的步骤3,以及步骤4,其中将选自铜,镍,锌和钴中的至少一种元素和碱金属盐化合物的化合物 负载在步骤3中获得的载体上。当用于从丙烯,氧气和乙酸生产乙酸烯丙酯时,所得到的乙酸烯丙酯生产催化剂的活性降低和选择性提高。

    Process for producing esters
    6.
    发明授权
    Process for producing esters 失效
    生产酯的方法

    公开(公告)号:US06849759B1

    公开(公告)日:2005-02-01

    申请号:US09719985

    申请日:2000-10-24

    IPC分类号: C07C67/04

    摘要: A process for producing an ester comprising reacting a carboxylic acid and ethylene in the presence of an acid catalyst in a vapor phase, wherein the concentration of olefin having 3 or more carbon atoms in the starting materials is controlled to 10,000 ppm or less in terms of the molar ratio to the total of the olefin and ethylene. The deterioration of the catalyst can be remarkably prevented from proceeding and a continuous and stable operation can be performed for a long time.

    摘要翻译: 一种制备酯的方法,包括在酸性催化剂存在下在气相中使羧酸和乙烯反应,其中原料中具有3个或更多个碳原子的烯烃的浓度被控制在10,000ppm以下 与烯烃和乙烯的总量的摩尔比。 可以显着地防止催化剂的劣化进行,并且可以长时间地进行连续且稳定的操作。

    Process for production of allyl acetate production catalyst
    7.
    发明授权
    Process for production of allyl acetate production catalyst 有权
    乙酸烯丙酯生产催化剂生产工艺

    公开(公告)号:US08338327B2

    公开(公告)日:2012-12-25

    申请号:US12527363

    申请日:2008-04-09

    摘要: An allyl acetate production catalyst comprising at least (a) palladium, (b) gold, (c) a compound containing at least one element selected from copper, nickel, zinc and cobalt, (d) an alkali metal salt compound and (e) a carrier, is produced by a process comprising step 1 in which a homogeneous solution of a palladium-containing compound and a gold-containing compound is supported on a carrier by contact therewith, step 2 in which the carrier obtained in step 1 is contacted with an alkali solution for impregnation, step 3 in which the carrier obtained in step 2 is subjected to reduction treatment, and step 4 in which a compound containing at least one element selected from copper, nickel, zinc and cobalt and an alkali metal salt compound are supported onto the carrier obtained in step 3. The obtained allyl acetate production catalyst has minimal reduction in activity and improved selectivity, when used for production of allyl acetate from propylene, oxygen and acetic acid.

    摘要翻译: 至少包含(a)钯,(b)金,(c)含有至少一种选自铜,镍,锌和钴的元素的化合物的乙酸烯丙酯生产催化剂,(d)碱金属盐化合物和(e) 通过包括步骤1的方法制备载体,其中含钯化合物和含金化合物的均匀溶液通过接触负载在载体上,步骤2将步骤1中获得的载体与 用于浸渍的碱溶液,其中步骤2中获得的载体进行还原处理的步骤3,以及步骤4,其中将选自铜,镍,锌和钴中的至少一种元素和碱金属盐化合物的化合物 负载在步骤3中获得的载体上。当用于从丙烯,氧气和乙酸生产乙酸烯丙酯时,所得到的乙酸烯丙酯生产催化剂的活性降低和选择性提高。