Synthesizing and utilizing novel ruthenium nanoparticle-activated charcoal-nano-zinc oxide composite catalyst
    51.
    发明公开
    Synthesizing and utilizing novel ruthenium nanoparticle-activated charcoal-nano-zinc oxide composite catalyst 有权
    Synthese und Verwendung von neuartigen ruthenium-nanoparticlesikelaktivierten Holzkohle-Nanozinkoxidverbundstoffkatalysatoren

    公开(公告)号:EP2517788A1

    公开(公告)日:2012-10-31

    申请号:EP11190440.5

    申请日:2011-11-24

    摘要: Ruthenium/activated charcoal (Ru/AC) treated with synthesized nano -ZnO ( n -ZnO) is used for the first time as a novel composite catalyst in one-step self-condensation of acetone (DMK) to methyl isobutyl ketone in the gas phase. The DMK self-condensation was performed under atmospheric pressure, in a tubular glass fixed-bed microreactor, under DMK and H 2 continuous flow at temperature in the range of 523 to 648 K. Addition of n -ZnO to Ru/AC resulted in a pronounced increase in the degree of dispersion of Ru and in the acidic/basic sites concentration ratio. For the one-step synthesis of MIBK at 623 K, the composite catalyst with 2.5 wt% Ru loading was an active and selective bi-functional composite catalyst with balanced acid/base and hydrogenation properties. At 523 K, isopropyl alcohol, product of DMK-direct hydrogenation, was produced in high selectivity for instantly investigated composite catalyst. The catalytic performance depended on the composite catalyst identity, DMK flow rate, H 2 flow rate, and reaction temperature.

    摘要翻译: 首次使用用合成纳米-ZnO(n-ZnO)处理的钌/活性炭(Ru / AC)作为新型复合催化剂,在丙酮(DMK)与气体中甲基异丁基酮的一步自缩合 相。 DMK自缩合在大气压下,在管状玻璃固定床微反应器中,在DMK和H 2连续流动下,在523至648K的温度范围内进行。向Ru / AC加入n-ZnO导致 Ru的分散度和酸性/碱性部位浓度比显着增加。 对于623K的MIBK的一步合成,具有2.5wt%Ru负载的复合催化剂是具有平衡的酸/碱和氢化性质的活性和选择性双功能复合催化剂。 在523K时,以立即研究的复合催化剂的高选择性生产异丙醇,DMK直接氢化产物。 催化性能取决于复合催化剂的同一性,DMK流量,H 2流量和反应温度。

    Process for production of allyl acetate with a catalyst containing Pd, Au, an alkali metal and a promotor
    52.
    发明公开
    Process for production of allyl acetate with a catalyst containing Pd, Au, an alkali metal and a promotor 有权
    一种用于生产使用含有Pd,金,一种碱金属和助催化剂的乙酸烯丙酯处理

    公开(公告)号:EP2460588A1

    公开(公告)日:2012-06-06

    申请号:EP12000689.5

    申请日:2008-04-09

    申请人: SHOWA DENKO K.K.

    IPC分类号: B01J37/16

    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.

    PROCESS FOR PRODUCTION OF CYCLOOLEFIN
    54.
    发明授权
    PROCESS FOR PRODUCTION OF CYCLOOLEFIN 有权
    用于生产环烯烃

    公开(公告)号:EP1921057B1

    公开(公告)日:2012-01-25

    申请号:EP06796546.7

    申请日:2006-08-18

    摘要: Disclosed is a process for production of a cycloolefin comprising the step of performing the partial hydrogenation of a monocyclic aromatic hydrocarbon with hydrogen in the presence of a ruthenium catalyst, water and a metal sulfate to produce the cycloolefin, wherein the concentration of chlorine ions dissolved in the catalyst-containing water is adjusted to 300 wt ppm or less and the catalyst is partially or entirely regenerated and re-used to prevent the decrease in the activity of the catalyst and the selectivity for a cycloolefin. Preferably, the metal sulfate is zinc sulfate and the raw materials and the catalyst to be used in the reaction are reduced in the chlorine ion content. In the process, the decrease in the activity of the catalyst and the selectivity for a cycloolefin can be prevented for a long period of time. The activity of the catalyst and the selectivity for a cycloolefin after the catalyst regeneration can also be maintained at high levels. Thus, a cycloolefin can be produced with good efficiency over a prolong period of time.

    PROCESS FOR PRODUCTION OF ALLYL ACETATE PRODUCTION CATALYST
    55.
    发明公开
    PROCESS FOR PRODUCTION OF ALLYL ACETATE PRODUCTION CATALYST 有权
    生产乙酸烯丙酯生产催化剂的方法

    公开(公告)号:EP2136919A2

    公开(公告)日:2009-12-30

    申请号:EP08740469.5

    申请日:2008-04-09

    申请人: Showa Denko K.K.

    IPC分类号: B01J37/16

    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: (a)钯,(b)金,(c)含有选自铜,镍,锌和钴中的至少一种元素的化合物,(d)碱金属盐化合物和(e) 载体通过包括步骤1的方法制备,其中含钯化合物和含金化合物的均匀溶液通过与载体接触而负载在载体上,步骤2,其中将步骤1中获得的载体与 用于浸渍的碱溶液,其中步骤2中获得的载体经历还原处理的步骤3以及其中包含选自铜,镍,锌和钴中的至少一种元素的化合物和碱金属盐化合物的步骤4是 负载到步骤3中获得的载体上。当用于由丙烯,氧气和乙酸生产乙酸烯丙酯时,所获得的乙酸烯丙酯生产催化剂具有最小的活性降低和改进的选择性。