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    Process for preparing tetrahydrofuran
    2.
    发明授权
    Process for preparing tetrahydrofuran 失效
    四氢呋喃的制备方法

    公开(公告)号：US4093633A

    公开(公告)日：1978-06-06

    申请号：US763506

    申请日：1977-01-28

    申请人： Yasuo Tanabe ,  Jun Toriya ,  Masato Sato ,  Ken Shiraga

    发明人： Yasuo Tanabe ,  Jun Toriya ,  Masato Sato ,  Ken Shiraga

    IPC分类号： C07D307/08

    CPC分类号： C07D307/08

    摘要： In the process for preparing tetrahydrofuran by the dehydrocyclization of 1,4-butanediol in the presence of a non-volatile acid catalyst, wherein vapor mixture of water and tetrahydrofuran is continuously taken out from the reaction zone and subjected to the azeotropic distillation in three distillation columns operated under specified conditions thereby obtaining tetrahydrofuran of high quality in a high yield.

    摘要翻译： 在通过在非挥发性酸催化剂的存在下通过1,4-丁二醇的脱氢环化制备四氢呋喃的方法，其中从反应区中连续取出水和四氢呋喃的蒸气混合物，并在三次蒸馏中进行共沸蒸馏 柱在规定条件下运行，从而以高产率获得高品质的四氢呋喃。

    Method of separating diacetoxybutene
    4.
    发明授权
    Method of separating diacetoxybutene 失效
    分离二乙酰氧基丁烯的方法

    公开(公告)号：US4057472A

    公开(公告)日：1977-11-08

    申请号：US656011

    申请日：1976-02-06

    申请人： Jun Toriya ,  Masato Sato ,  Ken Shiraga ,  Setsuo Matsunaga

    发明人： Jun Toriya ,  Masato Sato ,  Ken Shiraga ,  Setsuo Matsunaga

    IPC分类号： C07C69/16 ,  C07C69/18 ,  C07C69/28 ,  C07C69/52 ,  C07C69/02 ,  B01D3/10

    CPC分类号： C07C67/54

    摘要： A fractional distillation method of separating diacetoxybutene isomers from a reaction mixture produced from the reaction of butadiene, acetic acid and molecular oxygen comprises employing a series of at least two distillation towers, one of said towers being used for distillation of water and acetic acid under a pressure of 30 - 250 Torr and a tower bottom temperature of 190.degree. - 120.degree. C and the other being used for separation of high boiling point materials under a pressure of 2 - 100 Torr and a tower bottom temperature of 190.degree. - 120.degree. C, the temperature of all tower bottoms being from 190.degree. - 120.degree. C.

    摘要翻译： 从由丁二烯，乙酸和分子氧的反应产生的反应混合物中分离二乙酰氧基丁烯异构体的分馏方法包括使用一系列至少两个蒸馏塔，其中一个塔用于蒸馏水和乙酸， 压力为30〜250乇，塔底温度为190〜120℃，另外用于分离高沸点材料，压力为2〜100乇，塔底温度为190〜120℃ 所有塔底的温度为190°-120℃

    Process for hydrogenation of diacetoxybutene
    5.
    发明授权
    Process for hydrogenation of diacetoxybutene 失效
    二乙酰氧基丁烯氢化方法

    公开(公告)号：US4225729A

    公开(公告)日：1980-09-30

    申请号：US747018

    申请日：1976-12-02

    申请人： Jun Toriya ,  Ken Shiraga ,  Takeru Onoda ,  Akihisa Ohno

    发明人： Jun Toriya ,  Ken Shiraga ,  Takeru Onoda ,  Akihisa Ohno

    IPC分类号： C07C69/16 ,  C07C69/14 ,  C07C67/283

    CPC分类号： C07C69/14

    摘要： Diacetoxybutane is prepared by a process for hydrogenating diacetoxybutene in the presence of a supported hydrogenation catalyst comprising catalytically reacting diacetoxybutene with hydrogen continuously in an insulation reaction apparatus utilizing a fixed-bed of said hydrogenation catalyst, withdrawing the reaction effluent continuously from said reaction apparatus, circulating at least a part of said reaction effluent to said reaction apparatus while controlling the temperature of influx of said reaction apparatus at a temperature lower than the temperature of efflux from said reaction apparatus by 5.degree. to 100.degree. C.

    摘要翻译： 二乙酰氧基丁烷是通过在负载氢化催化剂存在下氢化二乙酰氧基丁烯的方法制备的，该催化剂包括在使用所述氢化催化剂的固定床的绝热反应装置中连续地使二乙酰氧基丁烯与氢气连续反应，从所述反应装置连续排出反应流出物，循环 所述反应流出物的至少一部分与所述反应装置同时控制所述反应装置的入口温度低于从所述反应装置排出的温度5℃至100℃的温度。

    Process for producing diacetoxybutanes and butanediols
    6.
    发明授权
    Process for producing diacetoxybutanes and butanediols 失效
    制备二乙酰氧基丁烷和丁二醇的方法

    公开(公告)号：US4010197A

    公开(公告)日：1977-03-01

    申请号：US607482

    申请日：1975-08-25

    申请人： Jun Toriya ,  Ken Shiraga

    发明人： Jun Toriya ,  Ken Shiraga

    IPC分类号： C07C31/20 ,  C07C69/16 ,  C07C29/00 ,  C07C67/28

    CPC分类号： C07C31/20 ,  C07C69/16

    摘要： There is disclosed a process for producing diacetoxybutane diol by hydrogenating diacetoxybutene in the presence of a hydrogenation catalyst in which the hydrogenation is carried out in two stages within predetermined temperature ranges, the temperature of the second stage is higher than that of first thereby obtaining the product in high selectivity with high conversion, and a process for producing butanediol by hydrolyzing the diacetoxybutane thus obtained in the presence of a solid acid catalyst.

    摘要翻译： 公开了通过在氢化催化剂的存在下氢化二乙酰氧基丁烯来制备二乙酰氧基丁二醇的方法，其中氢化在预定的温度范围内分两步进行，第二阶段的温度高于第一阶段的温度，从而获得产物 具有高转化率的高选择性，以及通过在固体酸催化剂存在下水解由此获得的二乙酰氧基丁烷来制备丁二醇的方法。

    Oxide catalyst and process for producing maleic anhydride by using oxide catalyst
    8.
    发明授权
    Oxide catalyst and process for producing maleic anhydride by using oxide catalyst 失效
    氧化物催化剂和使用氧化物催化剂生产马来酸酐的方法

    公开(公告)号：US5498731A

    公开(公告)日：1996-03-12

    申请号：US266510

    申请日：1994-06-27

    申请人： Yasushi Tsurita ,  Masumi Ito ,  Ken Shiraga

    发明人： Yasushi Tsurita ,  Masumi Ito ,  Ken Shiraga

    IPC分类号： B01J27/198

    CPC分类号： B01J27/198

    摘要： An oxide catalyst for producing maleic anhydride by vapor phase oxidation of a hydrocarbon having 4 carbon atoms, obtainable by (1) reacting a pentavalent vanadium compound and a pentavalent phosphorus compound in an organic solvent in the presence of a reducing agent capable of reducing the pentavalent vanadium to the tetravalent state to produce the crystalline composite oxide particles containing tetravalent vanadium and pentavalent phosphorus, (2) dry-pulverizing the obtained crystalline composite oxide particles in a high-speed gas flow, (3) mixing the pulverized particles with an aqueous solution containing tetravalent vanadium and pentavalent phosphorus to form a slurry, and (4) spray-drying the slurry and then calcining.

    摘要翻译： 一种用于通过气相氧化具有4个碳原子的烃来生产马来酸酐的氧化物催化剂，其可通过以下方式得到：（1）使五价钒化合物和五价磷化合物在有机溶剂中，在还原剂的存在下反应，所述还原剂能够还原五价 钒至四价状态，生成含有四价钒和五价磷的结晶复合氧化物粒子，（2）以高速气流将得到的结晶复合氧化物粒子干粉碎，（3）将粉碎的粒子与水溶液 含有四价钒和五价磷以形成浆料，（4）喷雾干燥浆料，然后煅烧。