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    Process for stabilizing hydrocyanation catalyst
    1.
    发明授权
    Process for stabilizing hydrocyanation catalyst 有权
    稳定氢氰化催化剂的方法

    公开(公告)号：US09296768B2

    公开(公告)日：2016-03-29

    申请号：US14404037

    申请日：2013-05-24

    Applicant: INVISTA NORTH AMERICA S.A.R.L.

    Inventor： William J. Tenn, III

    IPC: C07F15/00 ,  C07F9/40 ,  C07F15/04 ,  C07F9/6574 ,  C07F9/145 ,  B01J31/18 ,  B01J31/22 ,  C07C253/10

    CPC classification number: C07F9/06 ,  B01J31/185 ,  B01J31/2221 ,  B01J2231/322 ,  B01J2231/70 ,  B01J2531/847 ,  C07C253/10 ,  C07C253/30 ,  C07F9/145 ,  C07F9/4006 ,  C07F9/65744 ,  C07F15/04

    Abstract: The invention provides a method of forming a phosphonate diester compound from a ligand hydrolysis product (LHP) of a phosphite ligand used in a nickel-phosphite hydrocyanation catalyst, such as for conversion of 3-pentenenitrile to adiponitrile, which serves to eliminate acidic LHP compound for a hydrocyanation reaction milieu where the acidic LHP can catalyze further catalyst ligand destruction. The invention further provides phosphonate disester compounds prepared by alkylation of diarylphosphite LHP in the presence of a nickel-phosphite catalyst comprising a bidentate ligand, and a continuous hydrocyanation process for production of adiponitrile wherein catalyst ligand breakdown is inhibited through inactivation of ligand hydrolysis products towards further breakdown. A method of stabilizing a hydrocyanation catalyst is provided.

    Abstract translation: 本发明提供了一种由亚磷酸氢氰化催化剂中使用的亚磷酸酯配位体的配体水解产物（LHP）形成膦酸二酯化合物的方法，例如用于将3-戊烯腈转化成己二腈，其用于消除酸性LHP化合物 对于氢化反应环境，其中酸性LHP可以催化另外的催化剂配体破坏。 本发明还提供了在含有二齿配位体的亚磷酸二氢镍催化剂的存在下烷基化亚磷酸二氢钠LHP制备的膦酸酯二酯化合物，以及用于生产己二腈的连续氢氰化方法，其中通过使配体水解产物失活而进一步抑制催化剂配体分解 分解。 提供了一种稳定氢氰化催化剂的方法。

    PROCESS FOR STABILIZING HYDROCYANATION CATALYST
    2.
    发明申请
    PROCESS FOR STABILIZING HYDROCYANATION CATALYST 有权
    稳定化学催化剂的方法

    公开(公告)号：US20150148556A1

    公开(公告)日：2015-05-28

    申请号：US14404037

    申请日：2013-05-24

    Applicant: INVISTA NORTH AMERICA S.A.R.L.

    Inventor： William J. Tenn, III

    IPC: C07F9/40 ,  C07F15/04 ,  C07C253/10 ,  B01J31/22 ,  C07F9/145

    CPC classification number: C07F9/06 ,  B01J31/185 ,  B01J31/2221 ,  B01J2231/322 ,  B01J2231/70 ,  B01J2531/847 ,  C07C253/10 ,  C07C253/30 ,  C07F9/145 ,  C07F9/4006 ,  C07F9/65744 ,  C07F15/04

    Abstract: The invention provides a method of forming a phosphonate diester compound from a ligand hydrolysis product (LHP) of a phosphite ligand used in a nickel-phosphite hydrocyanation catalyst, such as for conversion of 3-pentenenitrile to adiponitrile, which serves to climinate acidic LHP compound for a hydrocyanation reaction milieu where the acidic LHP can catalyze further catalyst ligand destruction. The invention further provides phosphonate disester compounds prepared by alkylation of diarylphosphite LHP in the presence of a nickel-phosphite catalyst comprising a bidentate ligand, and a continuous hydrocyanation process for production of adiponitrile wherein catalyst ligand breakdown is inhibited through inactivation of ligand hydrolysis products towards further breakdown. A method of stabilizing a hydrocyanation catalyst is provided.

    Abstract translation: 本发明提供了一种由亚磷酸氢氰化催化剂中使用的亚磷酸酯配位体的配位体水解产物（LHP）形成膦酸二酯化合物的方法，例如将3-戊烯腈转化成己二腈，其用于酸化LHP化合物 对于氢化反应环境，其中酸性LHP可以催化另外的催化剂配体破坏。 本发明还提供了在含有二齿配位体的亚磷酸二氢镍催化剂的存在下烷基化亚磷酸二氢钠LHP制备的膦酸酯二酯化合物，以及用于生产己二腈的连续氢氰化方法，其中通过使配体水解产物失活而进一步抑制催化剂配体分解 分解。 提供了一种稳定氢氰化催化剂的方法。

    Stable ligand mixtures and processes for making same
    7.
    发明授权
    Stable ligand mixtures and processes for making same 有权

    公开(公告)号：US09834505B2

    公开(公告)日：2017-12-05

    申请号：US14404068

    申请日：2013-05-24

    Applicant: INVISTA NORTH AMERICA S.A.R.L.

    Inventor： Sudhir Aki ,  William J. Tenn, III ,  Thomas E. Vos

    IPC: C07C253/30 ,  C07F9/40 ,  C07F9/6574 ,  C07F9/145 ,  C07F15/04

    CPC classification number: C07C253/30 ,  C07F9/145 ,  C07F9/4006 ,  C07F9/65744 ,  C07F15/04

    Abstract: A process of stabilizing a bidentate or tridentate phosphorus-based phosphite ester ligand or mixture thereof in a hydrocyanation reaction milieu comprising water, wherein the ligand or ligand mixture comprises one or more of (i) a bidentate biphosphite ligand of formula (III), (R12—X12) (R13—X13) P—X14—Y—X24—P(X22—R22) (X23—R23) or (ii) a tridentate triphosphite ligand of formula (IIIA) (R12—X12) (R13—X13) P—X14—Y—X32—P(X34—R34)—(X33—Y2—R24—P(X23—R23)—(X22—R22) where each X is oxygen or a bond and each Y is an optionally substituted C6-C20 arylene group, comprising admixing the bidentate and/or tridentate with a stabilizing amount of one or more monodentate phosphite ligand of formula P(X1—R1)(X2—R2)(X3—R3) where each X is oxygen or a bond, wherein the monodentate ligand has a rate of hydrolysis greater than the rate of hydrolysis of the bidentate or tridentate ligand in the presence of water in a hydrocyanation reaction milieu, and thereby preserve concentrations and proportions of the bidentate and/or tridentate ligand(s) in the ligand blend.

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