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12 条记录 (耗时 0.026 秒)

    Process for the preparation of anthraquinone
    1.
    发明授权
    Process for the preparation of anthraquinone 失效
    制备蒽醌的方法

    公开(公告)号：US4220597A

    公开(公告)日：1980-09-02

    申请号：US6402

    申请日：1979-01-25

    申请人： Kurt Halcourt ,  Paul Losacker ,  Manfred Martin ,  Norbert Schenk ,  Wulf Schwerdtel

    发明人： Kurt Halcourt ,  Paul Losacker ,  Manfred Martin ,  Norbert Schenk ,  Wulf Schwerdtel

    IPC分类号： C07C50/18 ,  C07C45/00 ,  C07C46/02 ,  C07C46/04 ,  C07C51/31 ,  C07C67/00 ,  C07C49/68

    CPC分类号： C07C46/04 ,  C07C46/02 ,  C07C51/313

    摘要： A process has been found for the preparation of anthraquinone by catalytic oxidation of naphthalene in the gas phase to provide a reaction product, obtained by quenching, cooling or quenching and cooling, containing naphthaquinone and phthalic anhydride, treating said reaction product directly with butadiene to provide tetrahydroanthraquinone, oxidation by means of molecular oxygen to the tetrahydroanthraquinone contained in this reaction product, to give anthraquinone, and separation of naphthalene, phthalic anhydride, anthraquinone and by-products by distillation, the gases produced in the quenching and/or cooling of the gases from the naphthalene oxidation and the gases from the oxidation of the tetrahydroanthraquinone to give anthraquinone being completely or partially recycled to the oxidation of naphthalene, in which a compound with an alkaline reaction is introduced between the reactor in which naphthalene is oxidized and the reactor in which the reaction with butadiene takes place, and/or into the gas streams which are recycled to the oxidation of naphthalene.The process of the invention reduces considerably the formation of higher-boiling products formed in the continuous preparation of anthraquinone from naphthalene and increases the selectivity of the conversion of naphthalene to anthraquinone. In addition, the process of the invention provides greater freedom in separation of the reaction products since the production of troublesome high-boilers is minimized; and the process results in a reduced formation of carbon dioxide in the oxidation of naphthalene.

    摘要翻译： 已经发现通过在气相中催化氧化萘来制备蒽醌的方法，以提供含有萘醌和邻苯二甲酸酐的淬火，冷却或冷却或冷却获得的反应产物，直接用丁二烯处理所述反应产物以提供 四氢蒽醌，通过分子氧氧化成该反应产物中所含的四氢蒽醌，得到蒽醌，并通过蒸馏分离萘，邻苯二甲酸酐，蒽醌和副产物，在气体的淬火和/或冷却中产生的气体 从萘氧化和四氢蒽醌氧化的气体中得到蒽醌被完全或部分地再循环到萘的氧化中，其中将具有碱性反应的化合物引入萘被氧化的反应器中，其中反应器 与丁二烯的反应需要 ace和/或进入再循环到萘的氧化的气流中。 本发明的方法显着降低了从萘中连续制备蒽醌形成的较高沸点产物，并提高了萘转化为蒽醌的选择性。 此外，本发明的方法提供了更大的反应产物分离自由度，因为生产麻烦的高锅炉最小化; 并且该过程导致萘氧化中二氧化碳的形成减少。

    Process for the production of allyl alcohol
    3.
    发明授权
    Process for the production of allyl alcohol 失效
    生产烯丙醇的方法

    公开(公告)号：US3970713A

    公开(公告)日：1976-07-20

    申请号：US449418

    申请日：1974-03-08

    申请人： Gerhard Scharfe ,  Wulf Schwerdtel ,  Wolfgang Swodenk ,  Bruno Engelhard ,  Johann Grolig ,  Manfred Martin ,  Karl-Hermann Reissinger

    发明人： Gerhard Scharfe ,  Wulf Schwerdtel ,  Wolfgang Swodenk ,  Bruno Engelhard ,  Johann Grolig ,  Manfred Martin ,  Karl-Hermann Reissinger

    IPC分类号： C07C29/00 ,  C07C67/055

    CPC分类号： C07C67/055

    摘要： Allyl alcohol is produced in simple and economical fashion from propylene and oxygen by reacting propylene, oxygen and acetic acid over a palladium-containing catalyst in the presence of water; condensing the reaction product to form a condensate containing allyl acetate, acetic acid and water; treating the condensate with an acid catalyst and separating the resulting product by distillation into a head product consisting essentially of an allyl acetate/allyl alcohol/water azeotrope and into a sump product consisting essentially of acetic acid, allyl alcohol and water; recycling the head product to the acid catalyst stage; separating the sump product in a second distillation into an allyl alcohol/water head product and into a second sump product consisting essentially of acetic acid and water and recycling this sump product to the initial reaction.

    摘要翻译： 烯丙醇以简单和经济的方式从丙烯和氧气中通过丙烯，氧和乙酸在含水催化剂的存在下在水的存在下反应生成; 冷凝反应产物以形成含有乙酸烯丙酯，乙酸和水的缩合物; 用酸催化剂处理冷凝物并通过蒸馏将所得产物分离成基本上由乙酸烯丙酯/烯丙醇/水共沸物组成的头部产物，并进入基本上由乙酸，烯丙醇和水组成的贮槽产物中; 将头部产品回收到酸催化剂阶段; 将第二蒸馏中的贮槽产物分离成烯丙醇/水头产物，并进入基本上由乙酸和水组成的第二贮槽产物中，并将该贮槽产物再循环至初始反应。

    Process for preparing 1,4-naphthoquinone
    4.
    发明授权
    Process for preparing 1,4-naphthoquinone 失效
    制备1,4-萘醌的方法

    公开(公告)号：US4032548A

    公开(公告)日：1977-06-28

    申请号：US594486

    申请日：1975-07-09

    申请人： Manfred Martin ,  Gerhard Scharfe

    发明人： Manfred Martin ,  Gerhard Scharfe

    IPC分类号： C07C50/12 ,  B01J23/00 ,  C07B61/00 ,  C07C45/00 ,  C07C46/04 ,  C07C51/31 ,  C07C67/00 ,  C07C49/66

    CPC分类号： C07C46/04 ,  C07C51/313 ,  Y10S502/514

    摘要： 1,4-Naphthoquinone is prepared by reacting naphthalene with molecular oxygen in a gaseous phase in the presence of a catalyst containing vanadium. Prior to reacting the naphthalene with oxygen, the catalyst is pre-treated with molecular oxygen at 300.degree. to 400.degree. C in the absence of organic compounds and immediately thereafter a gas mixture containing naphthalene and molecular oxygen is passed over the pretreated catalyst at temperatures in the range of 300.degree. to 400.degree. C. The catalyst pre-treatment can be carried out in the presence of water vapor and the subsequent reaction of naphthalene with molecular oxygen can also be carried out in the presence of water vapor.

    Process for removal of lumen fillers and other soluble residues from hollow filaments
    6.
    发明授权
    Process for removal of lumen fillers and other soluble residues from hollow filaments 失效
    从中空丝中去除管腔填料和其他可溶性残留物的方法

    公开(公告)号：US5779815A

    公开(公告)日：1998-07-14

    申请号：US602820

    申请日：1996-02-26

    申请人： Hans-Gunter Breidohr ,  Manfred Martin ,  Bernhard Krautwurst ,  Martin Konig

    发明人： Hans-Gunter Breidohr ,  Manfred Martin ,  Bernhard Krautwurst ,  Martin Konig

    IPC分类号： D06L1/22 ,  B01D63/02 ,  B01D65/02 ,  B01D69/08 ,  D01D5/24 ,  D01F1/08 ,  B08B9/00

    CPC分类号： D01F1/08 ,  B01D63/021 ,  B01D65/02 ,  D01D5/24 ,  B01D2321/02 ,  B01D2321/16

    摘要： A process and an apparatus for removal of a lumen filler and/or other soluble residues from hollow filament bundles are described. The hollow filament bundles are first roughly cleaned by centrifuging, after which in a process preferably containing multiple steps they are cleaned by spraying and centrifuging. The first spraying step is preferably carried out in a pass-through mode and each of the additional steps under recirculation. After a constant concentration has been attained, the cleaning baths in each case are employed for a lower-order treatment step, the cleaning bath of the first spraying step being fed to a recycling process.

    摘要翻译： PCT No.PCT / EP95 / 02118 Sec。 371日期1996年2月26日 102（e）日期1996年2月26日PCT提交1995年6月3日PCT公布。 公开号WO96 / 01144 日本1996年1月18日描述了一种从中空丝束去除管腔填料和/或其它可溶性残留物的方法和装置。 首先通过离心分离中空丝束，然后在优选包含多个步骤的方法中，通过喷雾和离心将其清洁。 第一喷雾步骤优选以循环模式进行，并且每个附加步骤在循环下进行。 在达到恒定浓度之后，将每种情况下的清洗浴用于低级处理步骤，将第一喷射步骤的清洗槽送入再循环过程。

    Method of and device for producing bundles of hollow fibers
    8.
    发明授权
    Method of and device for producing bundles of hollow fibers 失效
    中空纤维束生产方法及装置

    公开(公告)号：US4681720A

    公开(公告)日：1987-07-21

    申请号：US571519

    申请日：1984-01-17

    申请人： Rudolf Baumgart ,  Manfred Martin ,  Lothar Low ,  Gunter Scheven

    发明人： Rudolf Baumgart ,  Manfred Martin ,  Lothar Low ,  Gunter Scheven

    IPC分类号： B01D63/02 ,  B65H54/00 ,  B65H54/56 ,  B65H57/20 ,  B65H67/048 ,  D01G1/04 ,  B29C47/20 ,  B29C53/62 ,  C08J9/28

    CPC分类号： B01D71/10 ,  B01D63/02 ,  B01D63/021 ,  B01D69/08 ,  B01D69/084 ,  B65H54/2896 ,  B65H67/048 ,  B65H2701/31 ,  Y10T428/2935 ,  Y10T428/2975 ,  Y10T428/2976 ,  Y10T428/298

    摘要： Disclosed is a method of and a device for producing bundles of hollow fibers such as used for dialysis. The device includes a guiding device for a continuous fiber which rotates in a plane. At least two groups of take-up elements are mounted on a conveyor. The conveyor is intermittently activated so that a group of take-up elements is placed in a working position in the range of movement of the guiding device, and a strand of a desired thickness is wound around the take-up elements. Thereafter, the conveyor is activated to discharge the first group together with the completed strand from the working position and place the subsequent empty group of take-up elements in the working position, without interruption of movement of the guiding device. During the winding-up of the subsequent strand, the completed strand is cut and wrapped into bundles.

    摘要翻译： 公开了用于生产用于透析的中空纤维束的方法和装置。 该装置包括用于在平面中旋转的连续纤维的引导装置。 至少两组卷取元件安装在输送机上。 输送机被间歇地激活，使得一组卷绕元件被放置在引导装置的运动范围内的工作位置，并且期望厚度的绳索缠绕在卷取元件周围。 此后，输送机被启动，以将来自工作位置的完成的线束与第一组一起排出，并将随后的空的卷取元件组放置在工作位置，而不会导致引导装置的移动。 在随后的股线的卷绕期间，将完成的股线切割并包裹成束。