利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.009 seconds)

    High-purity lanthanum isoproxide and a process for producing the same
    13.
    发明授权
    High-purity lanthanum isoproxide and a process for producing the same 失效
    高纯度异丙酸镧及其制造方法

    公开(公告)号：US06930177B2

    公开(公告)日：2005-08-16

    申请号：US10214338

    申请日：2002-08-07

    Applicant: Hidekimi Kadokura ,  Masamichi Matsumoto ,  Tadashi Ishii ,  Yumie Okuhara ,  Yoshinori Kuboshima ,  Hiroshi Matsumoto

    Inventor： Hidekimi Kadokura ,  Masamichi Matsumoto ,  Tadashi Ishii ,  Yumie Okuhara ,  Yoshinori Kuboshima ,  Hiroshi Matsumoto

    IPC: C07C29/68 ,  C07C29/76 ,  C07C31/10 ,  C07C31/28 ,  C07F5/00

    CPC classification number: C07C31/10 ,  C07C29/685 ,  C07C31/28

    Abstract: The invention provides true La(OiPr)3 preferable as a starting material for an asymmetric synthesis catalyst and a process for producing the same. In this process, anhydrous lanthanum chloride LaCl3 is reacted with potassium isopropoxide K(OiPr) in a mixed solvent of isopropanol and toluene, then the isopropanol is distilled away to replace all the solvent by toluene, then the reaction solution is left, decanted and filtered to give a transparent filtrate, and the solvent is distilled away from the filtrate which is then vacuum-dried under heating, whereby high-purity La(OiPr)3 is obtained in 77% yield. In this high-purity La(OiPr)3, the La content is 97 to 103% of the theoretical content, impurity K is 0.3% or less, (Li+Na) is 0.01% or less, Cl is 0.2% or less, and the degree of association thereof is 5.5 to 6.5.

    Abstract translation: 本发明提供了作为不对称合成催化剂的起始原料的真正的La（OiPr）3 N 3及其制造方法。 在该方法中，将无水氯化镧LaCl 3与异丙醇钾（OiPr）在异丙醇和甲苯的混合溶剂中反应，然后蒸除异丙醇以用甲苯代替所有溶剂，然后 反应溶液倒出并过滤，得到透明滤液，从滤液中蒸除溶剂，然后加热真空干燥，得到高纯度La（OiPr）3 N 收益率77％。 在该高纯度La（OiPr）3 N 3中，La含量为理论含量的97〜103％，杂质K为0.3％以下，（Li + Na）为0.01％以下， Cl为0.2％以下，结合度为5.5〜6.5。

    High-purity lanthanum isopropoxide and a process for producing the same
    14.
    发明申请
    High-purity lanthanum isopropoxide and a process for producing the same 失效
    高纯度异丙醇镧及其制造方法

    公开(公告)号：US20030055228A1

    公开(公告)日：2003-03-20

    申请号：US10214338

    申请日：2002-08-07

    Inventor： Hidekimi Kadokura ,  Masamichi Matsumoto ,  Tadashi Ishii ,  Yumie Okuhara ,  Yoshinori Kuboshima ,  Hiroshi Matsumoto

    IPC: C07F005/00

    CPC classification number: C07C31/10 ,  C07C29/685 ,  C07C31/28

    Abstract: The invention provides true La(OiPr)3 preferable as a starting material for an asymmetric synthesis catalyst and a process for producing the same. In this process, anhydrous lanthanum chloride LaCl3 is reacted with potassium isopropoxide K(OiPr) in a mixed solvent of isopropanol and toluene, then the isopropanol is distilled away to replace all the solvent by toluene, then the reaction solution is left, decanted and filtered to give a transparent filtrate, and the solvent is distilled away from the filtrate which is then vacuum-dried under heating, whereby high-purity La(OiPr)3 is obtained in 77% yield. In this high-purity La(OiPr)3, the La content is 97 to 103% of the theoretical content, impurity K is 0.3% or less, (LinullNa) is 0.01% or less, Cl is 0.2% or less, and the degree of association thereof is 5.5 to 6.5.

    Abstract translation: 本发明提供了作为不对称合成催化剂的起始原料的真正的La（OiPr）3及其制造方法。 在此过程中，无水氯化镧LaCl 3与异丙醇钾（OiPr）在异丙醇和甲苯的混合溶剂中反应，然后蒸除异丙醇，用甲苯代替所有溶剂，然后将反应溶液倒出并过滤 得到透明滤液，从滤液中蒸馏除去溶剂，然后在加热下进行真空干燥，得到77％的高纯度La（OiPr）3。 在该高纯度La（OiPr）3中，La含量为理论含量的97〜103％，杂质K为0.3％以下，（Li + Na）为0.01％以下，Cl为0.2％以下， 其结合度为5.5〜6.5。

    Process for the production of a rare earth metal alkoxide
    15.
    发明授权
    Process for the production of a rare earth metal alkoxide 失效
    制备稀土金属醇盐的方法

    公开(公告)号：US4507245A

    公开(公告)日：1985-03-26

    申请号：US509017

    申请日：1983-06-29

    Applicant: Yoshiharu Ozaki ,  Kimiyoshi Kaneko ,  Senshu Mitachi

    Inventor： Yoshiharu Ozaki ,  Kimiyoshi Kaneko ,  Senshu Mitachi

    IPC: C07C29/68 ,  C07F5/00 ,  C07C31/28

    CPC classification number: C07F5/003 ,  C07C29/685

    Abstract: A new improved process of producing a rare earth metal alkoxide is now provided, which comprises reacting a rare earth metal carboxylate with an alkali metal alkoxide in an inert organic solvent under anhydrous conditions, and which can be conducted in a facile way and give the desired rare earth metal alkoxide of a high purity in a high yield.

    Abstract translation: 现在提供了一种新的改进的稀土金属醇盐的制备方法，其包括使稀土金属羧酸盐与碱金属醇盐在惰性有机溶剂中在无水条件下反应，并且可以以容易的方式进行，得到所需的 高纯度的稀土金属醇盐，产率高。

Patent Agency Ranking