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    • 1. 发明授权
    • Process for separation of hafnium tetrachloride from zirconium
tetrachloride and electrode
    • US4925537A
    • 1990-05-15
    • US330893
    • 1989-03-31
    • Tomoo KiriharaIppei NakagawaYoshinobu SekiYutaka HondaYasuo Ichihara
    • Tomoo KiriharaIppei NakagawaYoshinobu SekiYutaka HondaYasuo Ichihara
    • C25B1/26B01D7/00C01G25/04C01G27/04C25B11/12
    • C01G27/04C01G25/04
    • A process for separation of hafnium tetrachloride from zirconium tetrachloride and electrode is disclosed. Zirconium tetrachloride containing hafnium tetrachloride in natural ratio dissolved in a molten salt is reduced in the first phase electrolysis using an anode composed of a substance formed by firing a mixture of more than one kind of compound selected from the group consisting of silica, silicate containing zirconium or zirconium oxide and carbon with a binder under maintenance of an initial concentration of the zirconium tetrachloride in order to produce zirconium trichloride containing a hafnium content lower than that of the zirconium tetrachloride at a cathode. Next, by using the former cathode as an anode and another cathode in the second phase electrolysis the zirconium tetrachloride is further reduced to yield zirconium trichloride of a lower hafnium content at another cathode and evolve on the anode gaseous zirconium tetrachloride having a high pressure by oxidizing the zirconium trichloride produced in the first phase electrolysis. The evolved zirconium tetrachloride is recovered as zirconium tetrachloride with a low hafnium content. Further, the zirconium tetrachloride with a low hafnium content and the zirconium trichloride with a lower hafnium content are produced by exchanging polarities of the cathode and the anode when the zirconium trichloride on the anode decreases. The second phase electrolysis is carried out repeatedly. After hafnium tetrachloride is concentrated to an expected value in the molten salt in the above mentioned electrolysis, the molten salt is transferred to a separate vessel and is heated to evaporate the tetrachloride highly concentrated hafnium. Thus, zirconium tetrachloride and hafnium tetracholoride are respectively separated with high efficiency. A hafnium content of zirconium tetrachloride separated is able to reduce to less than 100 ppm, and a zirconium content of hafnium tetrachloride separated is also reduced to less than 25 wt %.
    • 2. 发明授权
    • Process for separation of hafnium tetrachloride from zirconium
tetrachloride
    • 四氯化铪与四氯化锆的分离方法
    • US5009751A
    • 1991-04-23
    • US293791
    • 1989-01-05
    • Tomoo KiriharaIppei NakagawaYoshinobu SekiYutaka HondaYasuo Ichihara
    • Tomoo KiriharaIppei NakagawaYoshinobu SekiYutaka HondaYasuo Ichihara
    • C01G25/04C01G27/04
    • C01G25/04C01G27/04
    • Separation of hafnium tetrachloride from zirconium tetrachloride by introducing zirconium tetrachloride containing about 2-4 wt percent of hafnium tetrachloride into an electrolytic cell filled with a molten salt and dissolving it to make an electrolytic bath. Running first phase electrolysis which produces zirconium trichloride containing a lower hafnium content than the dissolved zirconium tetrachloride at the cathode. Running second phase electrolysis using the first cathode, but switching the first cathode to become an anode and using a second cathode. Producing zirconium trichloride of a lower hafnium content than the dissolved zirconium tetrachloride at the second cathode. Evolving a gaseous zirconium trichloride at the anode by electrolytic oxidation of the zirconium trichloride produced in the first phase electrolysis. Recovering this evolved zirconium tetrachloride which has a lower hafnium content than the dissolved zirconium tetrachloride and the zirconium trichloride produced at the cathodes. Continuing this second phase electrolysis by changing over polarities of the cathode and the anode, when the concentration of zinc trichloride at the anode decreases to a predetermined concentration when the vapor pressure valve of hafnium tetrachloride, which has become concentrated in the electrolytic bath reaches about 1/10 of that of zirconium tetrachloride in the electrolytic bath. Transferring the hafnium enriched electrolytic bath to a separate vessel and separating it from the molten salt by raising the temperature of the electrolytic bath to a predetermined temperature.
    • 通过将含有约2-4重量%的四氯化铪的四氯化锆引入填充有熔融盐的电解槽中并溶解以形成电解浴,从而将四氯化铪与四氯化锆分离。 运行第一相电解,其产生在阴极处含有比溶解的四氯化锆低的铪含量的三氯化锆。 使用第一阴极运行第二相电解,但是将第一阴极切换成阳极并使用第二阴极。 在第二阴极处产生比溶解的四氯化锆低的铪含量的三氯化锆。 通过在第一相电解中产生的三氯化锆的电解氧化在阳极上演化气态三氯化锆。 回收这种形成的四氯化锆,其具有比溶解的四氯化锆低的铪含量和在阴极产生的三氯化锆。 通过改变阴极和阳极的极性继续进行该第二阶段的电解,当浓度在电解槽中的四氯化铪的蒸汽压力阀达到约1时,阳极下的三氯化锌浓度降低到预定浓度 / 10的电解槽中的四氯化锆。 将富含铪的电解槽转移到单独的容器中,并通过将电解浴的温度升高到预定温度将其与熔融盐分离。
    • 3. 发明授权
    • Process of separation of hafnium from zirconium by molten salt
electrolysis
    • 通过熔融盐电解将铪与锆分离
    • US4857155A
    • 1989-08-15
    • US195623
    • 1988-05-17
    • Tomoo KiriharaIppei NakagawaYoshinobu SekiYutaka Honda
    • Tomoo KiriharaIppei NakagawaYoshinobu SekiYutaka Honda
    • C25B1/00B01D7/00C01G25/04C01G27/04C25B1/26
    • C01G25/04C01G27/04
    • A process of separation of hafnium from zirconium by molten salt electrolysis in which zirconium tetrachloride with ordinary hafnium tetrachloride content is dissolved in a molten salt and the zirconium tetrachloride is electrolytically reduced to zirconium trichloride with lower hafnium content at a cathode in the molten salt and hafnium tetrachloride is remained. Next, the cathode on which the zirconium trichloride is formed by the cathode reaction is used as an anode. The electrolytic reduction of zirconium tetrachloride at another cathode in the molten salt is carried out and at the same time the zirconium trichloride formed on the anode is oxidized to zirconium tetrachloride with a low hafnium content and the zirconium tetrachloride is evaporated for separation. The obtained zirconium tetrachloride containing a low hafnium content is suitable for production of reactor grade zirconium containing about 100 ppm of hafnium.
    • 通过熔融盐电解将熔融盐电解中的铪与锆分离的方法,其中将熔融盐溶解四氯化锆的四氯化钛溶解在熔融盐中,四氯化锆在熔融盐和铪中的阴极电解还原为具有较低铪含量的三氯化锆 四氯化碳仍然存在。 接下来,使用通过阴极反应形成三氯化锆的阴极作为阳极。 在熔盐中的另一个阴极处进行四氯化锆的电解还原,同时在阳极上形成的三氯化锆被氧化成具有低铪含量的四氯化锆,并将四氯化锆蒸发分离。 得到的含有低铪含量的四氯化锆适用于生产含有约100ppm铪的反应器级锆。
    • 4. 发明授权
    • Method for producing epoxide crystal
    • 环氧化物晶体的制备方法
    • US06765100B2
    • 2004-07-20
    • US09973191
    • 2001-10-10
    • Tomoyuki OnishiNaoko HiroseYasuyuki OtakeTakashi NakanoYutaka HondaMasakazu NakazawaKunisuke Izawa
    • Tomoyuki OnishiNaoko HiroseYasuyuki OtakeTakashi NakanoYutaka HondaMasakazu NakazawaKunisuke Izawa
    • C07D30124
    • C07C269/06C07B2200/07C07C269/08C07D263/24C07D303/36C07C271/16
    • The invention relates to a method for industrially producing highly pure (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoepoxide (crystal) or (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoalcohol. The method for producing N-carbamate-protected &bgr;-aminoepoxide crystal, includes one or more of the following steps (a) to (d): (a) dissolving (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoalcohol containing at least the diastereomer as an impurity in a solvent including at least one or more selected from aromatic hydrocarbon solvent, saturated hydrocarbon solvent, aqueous mixture solvent, acetone and 2-propanol, to remove insoluble matters; (b) treating the (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoalcohol with a base, thereby converting the N-carbamate-protected &bgr;-aminoalcohol to (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoepoxide; (c) treating the (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoepoxide containing at least the diastereomer as an impurity with an acid, thereby converting the diastereomer as an impurity to (4S, 5R) or (4R, 5S) oxazolidin-2-one derivative, and optionally separating and removing the resulting oxazolidin-2-one derivative in water or an aqueous mixture solvent; and (d) crystallizing the (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoepoxide in a mixture solvent of water and water-miscible organic solvent. By the methods of the present invention, highly pure (2R, 3S)- or (2S, 3R)-N-carbamate-protected &bgr;-aminoepoxide or (2R, 3S) or (2S, 3R)-N-carbamate-protected &bgr;-aminoalcohol can be efficiently produced.
    • 本发明涉及工业生产高纯度(2R,3S) - 或(2S,3R)-N-氨基甲酸酯保护的β-氨基环氧化物(晶体)或(2R,3S) - 或(2S,3R)-N 氨基甲酸酯保护的β-氨基醇。 制备N-氨基甲酸酯保护的β-氨基环氧化物晶体的方法包括一个或多个以下步骤(a)至(d):( a)将(2R,3S) - 或(2S,3R)-N-氨基甲酸酯 在包含至少一种或多种选自芳族烃溶剂,饱和烃溶剂,含水混合物溶剂,丙酮和2-丙醇的溶剂的溶剂中至少含有作为杂质的非对映体的β-保护的β-氨基醇,以除去不溶物;(b) 用碱处理(2R,3S) - 或(2S,3R)-N-氨基甲酸酯保护的β-氨基醇,从而将N-氨基甲酸酯保护的β-氨基醇转化为(2R,3S) - 或(2S,3R )-N-氨基甲酸酯保护的β-氨基环氧化物;(c)用酸处理至少含有非对映体作为杂质的(2R,3S) - 或(2S,3R)-N-氨基甲酸酯保护的β-氨基环氧化物,由此 将非对映异构体作为杂质转化为(4S,5R)或(4R,5S)恶唑烷-2-酮衍生物,任选分离和除去得到的恶唑烷-2-酮衍生物 在水或含水混合溶剂中; 和(d)在水和水混溶性有机溶剂的混合溶剂中结晶(2R,3S) - 或(2S,3R)-N-氨基甲酸酯保护的β-氨基环氧化物。 通过本发明的方法,高纯度(2R,3S) - 或(2S,3R)-N-氨基甲酸酯保护的β-氨基环氧化物或(2R,3S)或(2S,3R)-N-氨基甲酸酯保护的β - 氨基醇可以有效地生产。
    • 7. 发明授权
    • Acrylic fiber having excellent durability and dyeability and process for
preparation thereof
    • 丙烯酸纤维具有优异的耐久性和染色性及其制备方法
    • US4663232A
    • 1987-05-05
    • US728276
    • 1985-04-29
    • Kenji KamideYutaka HondaShuji Kajita
    • Kenji KamideYutaka HondaShuji Kajita
    • D01F6/40D01D5/06D01F6/18D01F6/38D02J1/22D02G3/00
    • D01F6/18Y10T428/2978Y10T428/298
    • Disclosed is an acrylic fiber composed of an acrylonitrile homopolymer or copolymer whose surface consists of particulate and/or microfibrillar structures having a width of 0.01 to 0.5 .mu.m and a length of 0.05 to 10 .mu.m and fibrillar structures formed by aggregation of the particulate and/or microfibrillar structures and having a width of 0.1 to 10 .mu.m and a length of at least 50 .mu.m. The fiber is prepared by spinning a dope of an acrylonitrile homopolymer or copolymer in a solvent at a draft ratio of at least 5 into a coagulating bath comprising a solvent and a coagulant and having a composition such that a skin layer is not formed on the coagulated fiber; taking up the coagulated fiber from the coagulating bath so that the retention time in the coagulating bath is within 60 seconds; and then drawing the fiber in a drawing bath comprising a solvent and a coagulant and having a coagulating property to the dope and a composition such that a skin layer is not formed on the fiber.
    • 公开了由丙烯腈均聚物或共聚物组成的丙烯酸纤维,其表面由宽度为0.01至0.5μm和长度为0.05至10μm的颗粒和/或微原纤维结构组成,并且通过颗粒和 /或微原纤维结构,宽度为0.1〜10μm,长度为50μm以上。 纤维通过将丙烯腈均聚物或共聚物的涂料在溶剂中以至少5的牵伸比纺丝到包含溶剂和凝结剂的凝结浴中并具有使得在凝固物上不形成表皮层的组合物来制备 纤维; 从凝固浴中吸收凝固纤维,使得凝固浴中的停留时间在60秒以内; 然后在包含溶剂和凝结剂的拉伸浴中将纤维拉伸到涂料上并具有凝胶性的组合物,使得在纤维上不形成表皮层。
    • 10. 发明申请
    • RISK MANAGEMENT SUPPORT SERVER AND JOB SUPPORT DEVICE
    • 风险管理支持服务器和工作支持设备
    • US20090307030A1
    • 2009-12-10
    • US12295116
    • 2007-03-28
    • Yutaka Honda
    • Yutaka Honda
    • G06Q10/00G06F15/16G06N5/02
    • G06Q40/08G06Q10/0635
    • A risk management support server possible of obtaining support information according to various viewpoints of risk management is provided. In client (4), a flow controller (111) displays information for selecting a field name by which support information of a temporary DB group (1300A) is classified. The client 4 informs the flow controller (111) of the selected field name. The flow controller (111) classifies pieces of the support information within the temporary DB group (1300A) for each same content using the informed field name. The flow controller (111) displays the pieces of the support information in the client (4), associated with each of the content.
    • 提供了可以根据各种风险管理观点获取支持信息的风险管理支持服务器。 在客户端(4)中,流控制器(111)显示用于选择临时DB组(1300A)的支持信息被分类的字段名称的信息。 客户端4通知流量控制器(111)所选择的字段名称。 流量控制器(111)使用通知字段名称对每个相同内容对临时DB组(1300A)内的支持信息进行分类。 流量控制器(111)在客户端(4)中显示与每个内容相关联的支持信息。