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    Process for preparing unsaturated carboxylic acids from the corresponding unsaturated aldehydes
    3.
    发明授权
    Process for preparing unsaturated carboxylic acids from the corresponding unsaturated aldehydes 失效
    从相应的不饱和醛制备不饱和羧酸的方法

    公开(公告)号：US3965163A

    公开(公告)日：1976-06-22

    申请号：US451443

    申请日：1974-03-15

    申请人： Yoshio Oda ,  Keiichi Uchida ,  Takeshi Morimoto

    发明人： Yoshio Oda ,  Keiichi Uchida ,  Takeshi Morimoto

    IPC分类号： C07C51/25 ,  C07C57/055 ,  C07C51/26

    CPC分类号： C07C51/252

    摘要： Unsaturated carboxylic acids are prepared by reacting the corresponding unsaturated aldehyde with molecular oxygen in the presence of a catalyst of (a) molybdenum, (b) phosphorus, (c) antimony, (d) at least one element selected from the group consisting of tungsten, barium, chromium, lead, niobium, tantalum, tin, nickel, iron and zirconium, and (e) oxygen, and optionally (f) at least one element selected from the group consisting of strontium, titanium, germanium, cerium, and silver.

    摘要翻译： 在（a）钼，（b）磷，（c）锑，（d）至少一种选自钨的元素的存在下，使相应的不饱和醛与分子氧反应制备不饱和羧酸 ，钡，铬，铅，铌，钽，锡，镍，铁和锆，和（e）氧，和（f）至少一种选自锶，钛，锗，铈和银的元素 。

    Process for producing alkali metal hydroxide
    7.
    发明授权
    Process for producing alkali metal hydroxide 失效
    碱金属氢氧化物的制备方法

    公开(公告)号：US4065366A

    公开(公告)日：1977-12-27

    申请号：US728017

    申请日：1976-09-29

    申请人： Yoshio Oda ,  Manabu Suhara ,  Eiji Endo

    发明人： Yoshio Oda ,  Manabu Suhara ,  Eiji Endo

    IPC分类号： C25B13/08 ,  C08J5/22 ,  C25B1/46 ,  C25B1/16 ,  C25B1/26

    CPC分类号： C25B1/46 ,  C08J5/2237 ,  C08J2327/12

    摘要： In a process for producing an alkali metal hydroxide which comprises electrolysis of an aqueous solution of an alkali metal chloride in an electrolytic cell having an anode compartment and a cathode compartment which are partitioned by a fluorinated cation exchange membrane, the improvement which comprises a fluorinated cation exchange membrane made of a fluorinated copolymer having carboxylic acid groups as the ion exchange group and having an ion exchange capacity of 0.5 to 2.0 meq/g dry polymer and a concentration of carboxylic acid groups of 8 to 30 meq/g water absorbed by the membrane when contacted with an aqueous solution of the alkali metal hydroxide having about the same concentration of alkali metal hydroxide as that of catholyte during said electrolysis.

    摘要翻译： 在制造碱金属氢氧化物的方法中，其包括在具有由氟化阳离子交换膜分隔的阳极室和阴极室的电解池中电解碱金属氯化物水溶液，其改进包括氟化阳离子 由具有羧酸基的氟化共聚物作为离子交换基团并具有0.5-2.0meq / g干燥聚合物的离子交换容量和由膜吸收的8至30meq / g水的羧酸基团的浓度的交换膜 当与所述电解期间具有与阴极电解液相同浓度的碱金属氢氧化物的碱金属氢氧化物的水溶液接触时。

    Electrolysis of aqueous solution of sodium chloride
    8.
    发明授权
    Electrolysis of aqueous solution of sodium chloride 失效
    电解氯化钠水溶液

    公开(公告)号：US4202743A

    公开(公告)日：1980-05-13

    申请号：US902084

    申请日：1978-05-02

    申请人： Yoshio Oda ,  Manabu Suhara ,  Shoziro Goto ,  Takashi Hukushima ,  Koji Miura ,  Toshikatsu Hamano

    发明人： Yoshio Oda ,  Manabu Suhara ,  Shoziro Goto ,  Takashi Hukushima ,  Koji Miura ,  Toshikatsu Hamano

    IPC分类号： C01D3/14 ,  C08J5/22 ,  C25B1/46 ,  C25B1/16 ,  C25B1/26

    CPC分类号： C08J5/2237 ,  C01D3/145 ,  C25B1/46 ,  C08J2327/18

    摘要： An electrolysis of an aqueous solution of sodium chloride is carried out by employing a fluorinated cation exchange membrane having an ion-exchange capacity of 0.8 to 2.0 meq/g dry polymer and having carboxylic acid groups as functional groups and maintaining a concentration of an aqueous solution of sodium hydroxide in a cathode compartment in a range of 20 to 45 wt. % and maintaining a calcium concentration in the aqueous solution of sodium chloride to lower than 0.08 mg/liter.The purification of the aqueous solution of sodium chloride to reduce the calcium concentration is carried out in a system comprising the first and second chelate ion-exchange towers which are connected through a detector for detecting impurities in the aqueous solution.

    摘要翻译： 氯化钠水溶液的电解是通过使用离子交换容量为0.8〜2.0meq / g的干燥聚合物并具有羧酸基作为官能团并维持水溶液浓度的氟化阳离子交换膜来进行的 的氢氧化钠在阴极室中的范围为20〜45重量％。 ％，并将氯化钠水溶液中的钙浓度维持在0.08mg / L以下。 用于降低钙浓度的氯化钠水溶液的纯化在包含通过用于检测水溶液中的杂质的检测器连接的第一和第二螯合离子交换塔的系统中进行。

    Electrolysis of aqueous solution of potassium chloride
    9.
    发明授权
    Electrolysis of aqueous solution of potassium chloride 失效
    电解氯化钾水溶液

    公开(公告)号：US4261803A

    公开(公告)日：1981-04-14

    申请号：US93437

    申请日：1979-11-13

    申请人： Manabu Suhara ,  Yoshio Oda

    发明人： Manabu Suhara ,  Yoshio Oda

    IPC分类号： C01D3/14 ,  C25B1/46 ,  C25B15/08 ,  C25B1/16 ,  C25B1/26 ,  C25B13/08

    CPC分类号： C01D3/145 ,  C25B1/46 ,  C25B15/08

    摘要： An electrolysis of an aqueous solution of potassium chloride is carried out by employing a fluorinated cation exchange membrane having an ion-exchange capacity of 0.8 to 2.0 meq/g dry polymer and having carboxylic acid groups as functional groups and maintaining a concentration of an aqueous solution of potassium hydroxide in a cathode compartment in a range of 20 to 45 wt. % and maintaining a calcium concentration in the aqueous solution of potassium chloride to lower than 0.05 mg/liter.The purification of the aqueous solution of potassium chloride to reduce the calcium concentration is carried out in a system comprising a chelate ion-exchange substance.

    摘要翻译： 氯化钾水溶液的电解是通过使用离子交换容量为0.8〜2.0meq / g干燥聚合物并具有羧酸基作为官能团并维持水溶液浓度的氟化阳离子交换膜来进行的 的氢氧化钾在阴极室中的范围为20〜45重量％。 ％，并将氯化钾水溶液中的钙浓度维持在0.05mg / L以下。 在包含螯合离子交换物质的体系中进行氯化钾水溶液的纯化以降低钙浓度。