Method of removing iodine compounds from crude acetic anhydride
    1.
    发明授权
    Method of removing iodine compounds from crude acetic anhydride 失效
    从粗乙酸酐中除去碘化合物的方法

    公开(公告)号:US5653853A

    公开(公告)日:1997-08-05

    申请号:US657427

    申请日:1996-06-03

    CPC分类号: C07C51/573 Y10S203/20

    摘要: A process by which iodine compounds contained in crude acetic anhydride or a mixture of crude acetic anhydride and crude acetic acid can be converted into methyl iodide having a low boiling point and which can be separated by distillation and efficiently removed by the combination of the conversion step with the heat treatment step and distillation step. The process includes the steps of heat-treating the crude acetic anhydride or the mixture of crude acetic anhydride and crude acetic acid in the presence of methanol and/or methyl acetate in a treatment tank and distilling the heat-treated crude acetic anhydride or the heat-treated mixture of crude acetic anhydride and crude acetic acid, in the presence of an alkali metal salt and/or an alkaline earth metal salt if necessary.

    摘要翻译: 将粗制乙酸酐或粗乙酸酐与粗乙酸的混合物中含有的碘化合物转化成沸点低的甲基碘,通过蒸馏分离并通过转化步骤的组合有效除去的方法 用热处理步骤和蒸馏步骤。 该方法包括在处理槽中在甲醇和/或乙酸甲酯的存在下,将粗乙酸酐或粗乙酸酐与粗乙酸的混合物进行热处理并蒸馏经热处理的粗乙酸酐或热 如果需要,在碱金属盐和/或碱土金属盐的存在下,将粗乙酸酐和粗乙酸的混合物混合。

    Method for producing copolymer of alkylvinyl ether and maleic anhydride, and copolymer of alkylvinyl ether and meleic anhydride
    2.
    发明授权
    Method for producing copolymer of alkylvinyl ether and maleic anhydride, and copolymer of alkylvinyl ether and meleic anhydride 失效
    制备烷基乙烯基醚和马来酸酐的共聚物的方法,以及烷基乙烯基醚和马来酸酐的共聚物

    公开(公告)号:US06881803B2

    公开(公告)日:2005-04-19

    申请号:US10033673

    申请日:2001-12-28

    摘要: In the first aspect of the present invention, there is disclosed a method for producing a copolymer of an alkyl vinyl ether and maleic anhydride which comprises removing an organic solvent used in a reaction under a temperature so that a slurry state can be maintained. According to the first aspect, such a copolymer of the alkyl vinyl ether and maleic anhydride which contains a little amount of the solvent remaining therein as disclosed in the second aspect of the present invention, can be obtained.Further, it can be avoided that a specific viscosity of the copolymer of the alkyl vinyl ether and maleic anhydride is lowered, by means of a method for producing a copolymer of alkyl vinyl ether and maleic anhydride which comprises shielding oxygen in a polymerization, as disclosed in the third aspect of the present invention.

    摘要翻译: 在本发明的第一方面,公开了一种烷基乙烯基醚和马来酸酐的共聚物的制造方法,其包括在温度下除去反应中使用的有机溶剂,从而可以保持浆料状态。 根据第一方面,可以获得如本发明第二方面所公开的含有少量溶剂的烷基乙烯基醚和马来酸酐的共聚物。 此外,可以避免通过烷基乙烯基醚和马来酸酐的共聚物的制备方法降低烷基乙烯基醚和马来酸酐的共聚物的比粘度,其包括在聚合中屏蔽氧,如所公开的 在本发明的第三方面。

    1,3 butylene glycol of high purity and method for producing the same
    3.
    发明授权
    1,3 butylene glycol of high purity and method for producing the same 有权
    高纯度1,3-丁二醇及其制造方法

    公开(公告)号:US06376725B1

    公开(公告)日:2002-04-23

    申请号:US09529085

    申请日:2000-07-06

    IPC分类号: C07C2726

    摘要: High purity 1,3-butylene glycol obtained from acetaldol by a liquid phase hydrogen reduction method, by adding a base to crude 1,3-butylene glycol free of high-boiling material, heat-treating the mixture and then distilling off 1,3-butylene glycol; and distilling off low-boiling materials from 1,3-butylene glycol. In high performance liquid chromatography analysis under specified conditions, each peak eluted in a relative retention time range of 4.0 to 5.5, taking a relative retention time of 1,3-butylene as 1.0, has an absorbance of 0.02 or less at a measuring wavelength of 210 nm. This has no odor and shows less change with time.

    摘要翻译: 通过液相氢还原法从乙醛醇获得的高纯度1,3-丁二醇,通过向不含高沸点物质的粗1,3-丁二醇加入碱,热处理混合物,然后蒸馏除去1,3 丁二醇 并从1,3-丁二醇中蒸馏掉低沸点物质。 在规定条件下的高效液相色谱分析中,相对保留时间范围为4.0〜5.5的各峰,相对于1,3-丁烯的保留时间为1.0,在测定波长的吸光度为0.02以下 210nm。 这没有气味,随着时间的推移变化不大。

    Process for producing highly purified acetic acid
    5.
    发明授权
    Process for producing highly purified acetic acid 失效
    生产高纯度乙酸的方法

    公开(公告)号:US5756836A

    公开(公告)日:1998-05-26

    申请号:US591947

    申请日:1996-01-23

    摘要: The present invention relates to a process for producing a highly purified acetic acid characterized in that in the process for producing acetic acid comprising the step of continuously reacting methanol and/or an aqueous solution of methyl acetate with carbon monoxide in a reactor, a treatment is conducted to limit the concentration of unsaturated compounds in crude acetic acid obtained in the process to 5 ppm or lower, and the resultant crude acetic acid is ozonized. The present invention also relates to a process for producing a highly purified acetic acid, characterized by comprising the step of continuously reacting methanol and/or an aqueous solution of methyl acetate with carbon monoxide in a reactor while maintaining the concentration of acetaldehyde in a reaction fluid in the reactor at 1500 ppm or lower.

    摘要翻译: 本发明涉及一种生产高纯度乙酸的方法,其特征在于在制备乙酸的方法中,包括在反应器中使甲醇和/或乙酸甲酯的水溶液与一氧化碳连续反应的步骤,处理为 进行以将该方法中得到的粗乙酸中的不饱和化合物的浓度限制在5ppm以下,将所得粗乙酸臭化。 本发明还涉及一种生产高纯度乙酸的方法,其特征在于包括使甲醇和/或乙酸甲酯的水溶液与一氧化碳在反应器中连续反应,同时保持乙醛浓度在反应流体中的步骤 在反应器中为1500ppm以下。

    Process for the preparation of ethylamines
    6.
    发明授权
    Process for the preparation of ethylamines 失效
    乙胺的制备方法

    公开(公告)号:US5840987A

    公开(公告)日:1998-11-24

    申请号:US965171

    申请日:1997-11-06

    申请人: Yasuo Tsuji

    发明人: Yasuo Tsuji

    CPC分类号: C07C209/86

    摘要: Disclosed is a process for the preparation of a process for the separation and purification of amines from a mixed reaction crude liquid containing ethylamines prepared by a reaction of ethylalcohol or acetaldehyde with ammonia, and triethylamine can be predominantly prepared without accumulation of ingredients having intermediate boiling-points.

    摘要翻译: 公开了一种制备用于从含有乙醇或乙醛与氨反应制备的乙胺的混合反应粗液体中分离和纯化胺的方法,并且可以主要制备三乙胺而不累积具有中等沸点 - 积分

    EARTH DEVICE
    7.
    发明申请
    EARTH DEVICE 审中-公开
    地球装置

    公开(公告)号:US20140009167A1

    公开(公告)日:2014-01-09

    申请号:US13885840

    申请日:2011-01-17

    IPC分类号: G01R31/02

    CPC分类号: G01R31/026 H01R4/64 H01R11/24

    摘要: An earth device is an earth device for earthing an object to be earthed. The earth device includes an earth-side wire, a detection-side wire which is normally out of conduction with the earth-side wire, an attachment member provided on one end portion of each of the earth-side wire and the detection-side wire and attached to the object to be earthed to provide conduction between the earth-side wire and the detection-side wire, an earth member for earthing provided on the other end portion of each of the earth-side wire and the detection-side wire, and a detection means connected to the detection-side wire to detect conduction in the detection-side wire.

    摘要翻译: 地球装置是用于接地要接地的物体的接地装置。 接地装置包括:接地侧线,通常与接地侧线导通的检测侧线;设置在接地侧线和检测侧线的一个端部的安装部件 并且附接到要接地的物体以在接地侧线和检测侧线之间提供导通,设置在每个接地侧线和检测侧线的另一端部的用于接地的接地构件, 以及检测装置,连接到检测侧线以检测检测侧线中的导通。

    Process for preparing .alpha.-phenylpropionic acid derivative
    8.
    发明授权
    Process for preparing .alpha.-phenylpropionic acid derivative 失效
    制备α-苯基丙酸衍生物的方法

    公开(公告)号:US4843172A

    公开(公告)日:1989-06-27

    申请号:US103309

    申请日:1987-09-30

    CPC分类号: C07C51/12 Y02P20/584

    摘要: A process for preparing an .alpha.-phenylpropionic acid derivative wherein an .alpha.-phenylethyl alcohol derivative is reacted with carbon monoxide in the presence of a catalyst to give an .alpha.-phenylpropionic acid derivative, which comprises carrying out the reaction in either one of the following manners (I), (II) and (III):(i) effecting said reaction in the presence of a rhodium catalyst, as said catalyst, together with an iodine compound in such an amount as to give a Rh to I ratio on an atomic basis of 1:0.5 to 1:6; adjusting the concentration of water in the reaction mixture to a level of 2 mol/l or below; and employing a reaction temperature of 130.degree. C. or below,(II) employing a mixture of a hydrocarbon and an oxygen-containing organic compound as a solvent, or(III) effecting said reaction in the presence of a rhodium catalyst, as said catalyst, and an iodine compound; adding water optionally together with an oxygen-containing organic compound as an extraction solvent to the resulting reaction mixture to thereby separate the same into two layers, i.e., a layer containing the reaction product and an aqueous layer; and repeatedly using the rhodium catalyst contained in said aqueous layer.

    摘要翻译: 一种制备α-苯基丙酸衍生物的方法,其中α-苯乙醇衍生物在催化剂存在下与一氧化碳反应,得到α-苯基丙酸衍生物,其包括以下列任一种方式进行反应 (I),(II)和(III):(i)在作为所述催化剂的铑催化剂存在下进行所述反应与碘化合物一起使用,以使得Rh与I 基础为1:0.5至1:6; 将反应混合物中的水浓度调节至2mol / l或更低的水平; 使用烃和含氧有机化合物的混合物作为溶剂的反应温度为130℃以下的反应温度,或者在铑催化剂存在下进行所述反应的(III),如上所述 催化剂和碘化合物; 将任选地与含氧有机化合物一起作为萃取溶剂加入到所得反应混合物中,从而将其分离成两层,即含有反应产物和水层的层; 并重复使用包含在所述水层中的铑催化剂。

    Seat belt retractor
    9.
    发明授权
    Seat belt retractor 失效
    座椅皮带扣

    公开(公告)号:US5161748A

    公开(公告)日:1992-11-10

    申请号:US663458

    申请日:1991-03-04

    IPC分类号: B60R22/34 F16C33/20 H01L39/24

    CPC分类号: B60R22/34 H01L39/2448

    摘要: In a seat belt retractor comprising a frame which has a pair of side walls facing each other, shaft supporting holes which are provided at the side walls, respectively, a rotatable shaft which is provided between the supporting holes, a bush for supporting the shaft, the bush being attached to at least one of the supporting holes, and a reel which is attached to the shaft and on which a seat belt is wound, the bush is made of synthetic resin and comprises a cylindrical portion in which a shaft portion of a body of rotation is inserted and a flange portion which is provided so as to be coaxial with the cylindrical portion, the portion on one end side in the axial direction of the inside circumference face of the cylindrical portion being tapered so as to increase the diameter in the direction of approaching the one end side.

    摘要翻译: 在一种安全带卷收器中,包括具有一对侧壁的框架,分别设置在侧壁处的轴支撑孔,设置在支撑孔之间的可旋转轴,用于支撑轴的衬套, 所述衬套附接到所述支撑孔中的至少一个,以及附接到所述轴并且安装有所述安全带的卷轴,所述衬套由合成树脂制成,并且包括圆柱形部分,所述圆筒部分 插入旋转体和设置成与圆筒部同轴的凸缘部,圆筒部的内周面的轴向的一端侧的部分为锥形,以使直径增加 接近一端的方向。

    Process for preparing .alpha.-phenylpropionic acid derivative
    10.
    发明授权
    Process for preparing .alpha.-phenylpropionic acid derivative 失效
    制备(ALPHA) - 苯基丙酸衍生物的方法

    公开(公告)号:US5091563A

    公开(公告)日:1992-02-25

    申请号:US453154

    申请日:1989-12-11

    CPC分类号: C07C51/12 Y02P20/584

    摘要: A process for preparing an .alpha.-phenylpropionic acid derivative wherein an .alpha.-phenylethyl alcohol derivative is reacted with carbon monoxide in the presence of a catalyst to give an .alpha.-phenylpropionic acid derivative, which comprises carrying out the reaction in either one of the following manners (I), (II) and (III):(I) effecting said reaction in the presence of a rhodium catalyst, as said catalyst, together with an iodine compound in such an amount as to give a Rh to I ratio on an atomic basis of 1:0.5 to 1:6; adjusting the concentration of water in the reaction mixture to a level of 2 mol/l or below; and employing a reaction temperature of 130.degree. C. or below,(II) employing a mixture of a hydrocarbon and an oxygen-containing organic compound as a solvent, or(III) effecting said reaction in the presence of a rhodium catalyst, as said catalyst, and an iodine compound; adding water optionally together with an oxygen-containing organic compound as an extraction solvent to the resulting reaction mixture to thereby separate the same into two layers, i.e., a layer containing the reaction product and an aqueous layer; and repeatedly using the rhodium catalyst contained in said aqueous layer.