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15 条记录 (耗时 0.025 秒)

    Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols
    1.
    发明授权
    Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols 有权
    制备2,2,4,4-四烷基环丁烷-1,3-二醇的方法

    公开(公告)号：US08420868B2

    公开(公告)日：2013-04-16

    申请号：US12963691

    申请日：2010-12-09

    申请人： Zhufang Liu ,  Lori Cooke Ensor ,  Guy Ralph Steinmetz ,  Jerome Leonard Stavinoha, Jr.

    发明人： Zhufang Liu ,  Lori Cooke Ensor ,  Guy Ralph Steinmetz ,  Jerome Leonard Stavinoha, Jr.

    IPC分类号： C07C29/145 ,  C07C35/04

    CPC分类号： C07C29/145 ,  C07C2601/04 ,  C07C35/045

    摘要： Disclosed is a process for the preparation of a 2,2,4,4-tetraalkylcyclobutane-1,3-diols by hydrogenation of a 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the presence of a catalyst comprising ruthenium deposited on a carbon nanotube support. The process is useful for the preparation of 2,2,4,4-tetramethylcyclobutane-1,3-diol. The process may be carried out in the presence or absence of a solvent and in the liquid or vapor phase. Also disclosed is a process for modifying the cis:trans ratio of the 2,2,4,4-tetramethylcyclobutane-1,3-diol hydrogenation product by contacting the diol with hydrogen in the presence of a supported ruthenium catalyst.

    摘要翻译： 公开了一种在催化剂存在下，通过2,2,4,4-四烷基环丁烷-1,3-二酮的氢化制备2,2,4,4-四烷基环丁烷-1,3-二醇的方法，包括 钌沉积在碳纳米管支撑体上。 该方法可用于制备2,2,4,4-四甲基环丁烷-1,3-二醇。 该方法可以在溶剂存在或不存在下和在液相或气相中进行。 还公开了通过在负载的钌催化剂的存在下使二醇与氢接触来改变2,2,4,4-四甲基环丁烷-1,3-二醇氢化产物​​的顺式：反式比的方法。

    Gas phase process for the epoxidation of non-allylic olefins
    9.
    发明授权
    Gas phase process for the epoxidation of non-allylic olefins 失效
    用于非烯丙烯烯烃环氧化的气相方法

    公开(公告)号：US06172245B2

    公开(公告)日：2001-01-09

    申请号：US09465100

    申请日：1999-12-16

    申请人： John Robert Monnier ,  Jerome Leonard Stavinoha, Jr. ,  Gary Wayne Hartley ,  Emily Elizabeth Jameson ,  Scott Donald Barnicki

    发明人： John Robert Monnier ,  Jerome Leonard Stavinoha, Jr. ,  Gary Wayne Hartley ,  Emily Elizabeth Jameson ,  Scott Donald Barnicki

    IPC分类号： C07D30110

    CPC分类号： C07D303/04 ,  C07D301/10

    摘要： Disclosed herein is an improved gas phase process for the selective epoxidation of non-allylic olefins wherein the epoxidation is carried out in the presence of one or more volatile, nitrogen-containing, basic compounds. The presence of a nitrogen-containing basic compound in the olefin-containing reaction gas or vapor suppresses the formation of an organic resinous material which coats the catalyst, thereby decreasing catalyst activity and life and also increases substantially the activity of the epoxidation catalyst. The disclosed process is particularly useful for the continuous manufacture of 3,4-epoxy-1-butene from 1,3-butadiene.

    摘要翻译： 本文公开了用于非烯丙烯选择性环氧化的改进的气相方法，其中环氧化在一种或多种挥发性含氮碱性化合物的存在下进行。 含烯烃反应气体或蒸气中含氮碱性化合物的存在抑制了涂覆催化剂的有机树脂材料的形成，从而降低催化剂活性和寿命，并且还显着提高了环氧化催化剂的活性。 所公开的方法对于从1,3-丁二烯连续制备3,4-环氧-1-丁烯是特别有用的。

    Recovery and purification of 3,4-epoxy-1-butene
    10.
    发明授权
    Recovery and purification of 3,4-epoxy-1-butene 失效
    3,4-环氧-1-丁烯的回收和纯化

    公开(公告)号：US06395913B1

    公开(公告)日：2002-05-28

    申请号：US09910359

    申请日：2001-07-20

    申请人： Scott Donald Barnicki ,  Jerome Leonard Stavinoha, Jr. ,  Robert Sterling Kline ,  Jackie Lee Hamilton

    发明人： Scott Donald Barnicki ,  Jerome Leonard Stavinoha, Jr. ,  Robert Sterling Kline ,  Jackie Lee Hamilton

    IPC分类号： C07D30132

    CPC分类号： C07D301/32 ,  C07D301/10

    摘要： Disclosed is a method of recovering and purifying 3,4-epoxy-1-butene (epoxybutene) from a reaction product gas, obtained by the vapor phase catalytic partial oxidation of 1,3-butadiene with oxygen over a silver catalyst. The recovery and purification comprises absorption of the epoxybutene into a water-miscible solvent followed by separation of the absorbed epoxybutene from the absorbent by extraction into a water-immiscible solvent. A method of recovering and purifying epoxybutene from the extraction solvent and other reaction by-products by a novel combination of distillation and decantation steps also is disclosed.

    摘要翻译： 公开了一种通过在银催化剂上用氧气气相催化部分氧化1,3-丁二烯而获得的反应产物气体中3,4-环氧-1-丁烯（环氧丁烯）的回收和纯化方法。 回收和纯化包括将环氧丁烯吸收到水混溶性溶剂中，然后通过萃取与水不混溶的溶剂将吸收的环氧丁烯从吸收剂中分离出来。 公开了一种通过蒸馏和倾析步骤的新组合从提取溶剂和其它反应副产物中回收和纯化环氧丁烯的方法。