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    • 1. 发明申请
    • Methods for producing acetic acid
    • 生产乙酸的方法
    • US20070093676A1
    • 2007-04-26
    • US10567900
    • 2005-12-19
    • Hidetaka KojimaHiroyuki Miura
    • Hidetaka KojimaHiroyuki Miura
    • C07C51/12
    • B01J23/464B01J27/13C01B3/16C07C51/12Y02P20/52C07C53/08
    • A method produces acetic acid by continuously reacting methanol with carbon monoxide in the presence of a rhodium catalyst, an iodide salt, methyl iodide, methyl acetate, and water; and thereby producing acetic acid at a production rate of 11 mol/L·hr or more while keeping the acetaldehyde content of a reaction mixture to 500 ppm or less, in which the reaction is carried out at a carbon monoxide partial pressure in a gaseous phase of a reactor of 1.05 MPa or more and/or at a methyl acetate content of the reaction mixture of 2 percent by weight or more to thereby keep the production rate of acetaldehyde to 1/1500 or less that of acetic acid. This method can reduce production of by-products without reducing the reaction rate of acetic acid even at a low water content and a low hydrogen partial pressure in a reaction system.
    • 一种方法是通过在铑催化剂,碘化物盐,甲基碘,乙酸甲酯和水的存在下,使甲醇与一氧化碳连续反应来生产乙酸; 从而在将反应混合物的乙醛含量保持在500ppm以下的条件下以11mol / L·hr或更高的生产速率生产乙酸,其中反应在气相中以一氧化碳分压进行 的反应混合物的1.05MPa以上和/或乙酸甲酯含量为2重量%以上,从而将乙醛的生成速度保持在乙酸的1/1500以下。 该方法即使在反应体系中的低水分含量和低的氢分压下也可以降低乙酸的反应速率而不降低副产物的产生。
    • 2. 发明授权
    • Methods for producing acetic acid
    • 生产乙酸的方法
    • US07683212B2
    • 2010-03-23
    • US10567900
    • 2005-12-19
    • Hidetaka KojimaHiroyuki Miura
    • Hidetaka KojimaHiroyuki Miura
    • C07C51/12
    • B01J23/464B01J27/13C01B3/16C07C51/12Y02P20/52C07C53/08
    • A method produces acetic acid by continuously reacting methanol with carbon monoxide in the presence of a rhodium catalyst, an iodide salt, methyl iodide, methyl acetate, and water; and thereby producing acetic acid at a production rate of 11 mol/L·hr or more while keeping the acetaldehyde content of a reaction mixture to 500 ppm or less, in which the reaction is carried out at a carbon monoxide partial pressure in a gaseous phase of a reactor of 1.05 MPa or more and/or at a methyl acetate content of the reaction mixture of 2 percent by weight or more to thereby keep the production rate of acetaldehyde to 1/1500 or less that of acetic acid. This method can reduce production of by-products without reducing the reaction rate of acetic acid even at a low water content and a low hydrogen partial pressure in a reaction system.
    • 一种方法是通过在铑催化剂,碘化物盐,甲基碘,乙酸甲酯和水的存在下,使甲醇与一氧化碳连续反应来生产乙酸; 从而在将反应混合物的乙醛含量保持在500ppm以下的同时以11mol / L·hr以上的生产速度生产乙酸,其中反应在气相中以一氧化碳分压进行 的反应混合物的1.05MPa以上和/或乙酸甲酯含量为2重量%以上,从而将乙醛的生成速度保持在乙酸的1/1500以下。 该方法即使在反应体系中的低水分含量和低的氢分压下也可以降低乙酸的反应速率而不降低副产物的产生。
    • 3. 发明授权
    • Process for producing carboxylic acid
    • 制备羧酸的方法
    • US07678940B2
    • 2010-03-16
    • US11922339
    • 2006-07-11
    • Hiroyuki MiuraHidetaka Kojima
    • Hiroyuki MiuraHidetaka Kojima
    • C07C51/42
    • C07C51/44C07C53/08C07C53/122
    • A process for producing a purified carboxylic acid having “n+1” carbon atoms comprises feeding a carboxylic acid stream containing a carboxylic acid having “n+1” carbon atoms, a hydrogen halide, a lower boiling point (bp) component, a higher bp component, and others to a first distillation column; separating a lower bp fraction containing part of the lower bp component and a higher bp fraction containing part of the higher bp component in the first column; withdrawing a side stream containing at least the carboxylic acid by side cut from the first column; feeding the side stream to a second distillation column; separating a lower bp fraction containing part of the lower bp component and a higher bp fraction containing part of the higher bp component in the second column; and withdrawing a side stream containing the carboxylic acid by side cut from the second column to recover a purified carboxylic acid; and the process further comprises feeding at least one first component (A) selected from the group consisting of an alcohol, corresponding to the carboxylic acid, having “n” carbon atom(s), and an ester of the alcohol with the carboxylic acid to the first column, and if necessary water. Such a process ensures reduction of the concentration of the hydrogen halide in the purified carboxylic acid.
    • 制备具有“n + 1”个碳原子的精制羧酸的方法包括进料含有具有“n + 1”个碳原子的羧酸的羧酸流,卤化氢,低沸点(bp)组分,较高沸点 bp组分,其他至第一蒸馏塔; 分离含有部分低级bp组分的较低bp级分和含有第一列中较高bp组分部分的较高bp级分; 通过从第一塔侧面切割来抽出至少含有羧酸的侧流; 将侧流进料到第二蒸馏塔; 分离含有部分低级bp组分的较低bp级分和含有第二列中较高bp成分部分的较高bp级分; 通过从第二塔侧面切断含有羧酸的侧流,以回收纯化的羧酸; 该方法进一步包括将至少一种选自由对应于具有“n”个碳原子的羧酸的醇和醇与羧酸的醇组成的组中的至少一种第一组分加入到 第一列,如果需要的话。 这样的方法确保了精制羧酸中卤化氢浓度的降低。
    • 4. 发明申请
    • Process For Producing Carboxylic Acid
    • 生产羧酸的方法
    • US20090036710A1
    • 2009-02-05
    • US11922339
    • 2006-07-11
    • Hiroyuki MiuraHidetaka Kojima
    • Hiroyuki MiuraHidetaka Kojima
    • C07C51/42
    • C07C51/44C07C53/08C07C53/122
    • A process for producing a purified carboxylic acid having “n+1” carbon atoms comprises feeding a carboxylic acid stream containing a carboxylic acid having “n+1” carbon atoms, a hydrogen halide, a lower boiling point (bp) component, a higher bp component, and others to a first distillation column; separating a lower bp fraction containing part of the lower bp component and a higher bp fraction containing part of the higher bp component in the first column; withdrawing a side stream containing at least the carboxylic acid by side cut from the first column; feeding the side stream to a second distillation column; separating a lower bp fraction containing part of the lower bp component and a higher bp fraction containing part of the higher bp component in the second column; and withdrawing a side stream containing the carboxylic acid by side cut from the second column to recover a purified carboxylic acid; and the process further comprises feeding at least one first component (A) selected from the group consisting of an alcohol, corresponding to the carboxylic acid, having “n” carbon atom(s), and an ester of the alcohol with the carboxylic acid to the first column, and if necessary water. Such a process ensures reduction of the concentration of the hydrogen halide in the purified carboxylic acid.
    • 制备具有“n + 1”个碳原子的精制羧酸的方法包括进料含有具有“n + 1”个碳原子的羧酸的羧酸流,卤化氢,低沸点(bp)组分,较高沸点 bp组分,其他至第一蒸馏塔; 分离含有部分低级bp组分的较低bp级分和含有第一列中较高bp组分部分的较高bp级分; 通过从第一塔侧面切割来抽出至少含有羧酸的侧流; 将侧流进料到第二蒸馏塔; 分离含有部分低级bp组分的较低bp级分和含有第二列中较高bp成分部分的较高bp级分; 通过从第二塔侧面切断含有羧酸的侧流,以回收纯化的羧酸; 该方法进一步包括将至少一种选自由对应于具有“n”个碳原子的羧酸的醇和醇与羧酸的醇组成的组中的至少一种第一组分加入到 第一列,如果需要的话。 这样的方法确保了精制羧酸中卤化氢浓度的降低。
    • 8. 发明申请
    • Connector unit and connector thereof
    • 连接器单元及其连接器
    • US20090061653A1
    • 2009-03-05
    • US12231487
    • 2008-09-03
    • Hiroyuki MizushinaHiroyuki MiuraMitsunori Hanaka
    • Hiroyuki MizushinaHiroyuki MiuraMitsunori Hanaka
    • H01R12/14
    • H01R24/52H01R24/44H01R2103/00
    • A connector unit comprises a case, a substrate and a connector. The case is formed with an opening. The substrate is installed within the case and is formed with a signal conductive pattern and a ground conductive pattern. The ground conductive pattern is electrically connected to the case. The connector comprises a contact, an outer conductor and a high impedance member. The outer conductor is electrically connected to the ground conductive pattern. The outer conductor is insulated from the contact but covers, at least in part, the contact. The contact is electrically connected to the signal conductive pattern. The high impedance member has high impedance in a high frequency range. The high impedance member is positioned between the outer conductor and the case within the opening of the case. For example, the high impedance member is an electric wave absorber.
    • 连接器单元包括壳体,基板和连接器。 外壳形成一个开口。 衬底安装在壳体内并形成有信号导电图案和接地导电图案。 接地导体图案电连接到外壳。 连接器包括接触件,外部导体和高阻抗部件。 外部导体电连接到接地导体图案。 外部导体与触点绝缘,但至少部分地覆盖触点。 触点电连接到信号导电图案。 高阻抗部件在高频范围内具有高阻抗。 高阻抗构件位于壳体开口内的外导体和壳体之间。 例如,高阻抗部件是电波吸收体。