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    METHODS AND SYSTEMS FOR PREPARATION OF 1,3-BUTADIENE
    33.
    发明申请
    METHODS AND SYSTEMS FOR PREPARATION OF 1,3-BUTADIENE 审中-公开
    1,3-丁二烯的制备方法和系统

    公开(公告)号：WO2015051028A1

    公开(公告)日：2015-04-09

    申请号：PCT/US2014/058678

    申请日：2014-10-01

    Applicant: INVISTA TECHNOLOGIES S.A.R.L.

    Inventor： CROSS, JR., William M.

    IPC: C07C5/48

    CPC classification number: C07C7/08 ,  C07C2/08 ,  C07C5/48 ,  Y02P20/52 ,  C07C11/08 ,  C07C11/167

    Abstract: The present disclosure is directed to 1,3-butadiene processes and systems. Such methods and systems can include dimerization of ethylene to produce a first product stream, including n-butene. The first product stream can be converted to a second product stream, including 1,3-butadiene, via oxidative dehydrogenation. The second product stream can be distilled via at least a first extractive distillation step to produce a 1,3-butadiene fraction and a raffinate product. At least a portion of the raffinate product can be recycled and/or fed to additional partitioning steps.

    Abstract translation: 本公开涉及1,3-丁二烯方法和体系。 这样的方法和系统可以包括乙烯的二聚化以产生包括正丁烯的第一产物流。 可以通过氧化脱氢将第一产物流转化为第二产物流，包括1,3-丁二烯。 可以通过至少第一萃取蒸馏步骤蒸馏第二产物流以产生1,3-丁二烯级分和萃余液产物。 残液产物的至少一部分可以再循环和/或进料到另外的分离步骤。

    METHODS AND SYSTEMS FOR MONITORING FOR GEL FORMATION IN A POLYAMIDE SYNTHESIS PROCESS
    37.
    发明申请
    METHODS AND SYSTEMS FOR MONITORING FOR GEL FORMATION IN A POLYAMIDE SYNTHESIS PROCESS 审中-公开
    用于监测聚酰胺合成过程中凝胶形成的方法和系统

    公开(公告)号：WO2014179042A1

    公开(公告)日：2014-11-06

    申请号：PCT/US2014/034138

    申请日：2014-04-15

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

    Inventor： MICKA, Thomas A. ,  KELMAN, Charles R. ,  POINSATTE, John P. ,  FOSTER, Donald J. ,  NOMIKOS, Paul

    IPC: C08G69/28 ,  C08G69/04

    CPC classification number: C08G69/28 ,  C08G69/04

    Abstract: The present disclosure relates to methods and systems for monitoring for gel formation in the production of a polyamide product. In one embodiment, the present invention provides a method that can include directing a partially polymerized polyamide mixture through a flasher feed pump, a finisher pump, and a transfer line pump. The method can include switching the flasher feed pump, the finisher pump, and the transfer line pump from a first operating mode to a second operating mode. The method can include activating a gel time control unit and can be activated to estimate a gelation time for at least one of a flasher, a finisher, and a transfer line. The method can include switching a reactor of the polyamide synthesis system from the first operating mode to the second mode.

    Abstract translation: 本公开涉及用于监测聚酰胺产品生产中凝胶形成的方法和系统。 在一个实施方案中，本发明提供了一种方法，其可以包括将部分聚合的聚酰胺混合物引导通过闪蒸器进料泵，精整机泵和输送管线泵。 该方法可以包括将闪光器进料泵，整理器泵和输送线泵从第一操作模式切换到第二操作模式。 该方法可以包括激活凝胶时间控制单元并且可以被激活以估计闪光器，修整器和传输线中的至少一个的凝胶化时间。 该方法可以包括将聚酰胺合成系统的反应器从第一操作模式切换到第二模式。

    PROCESS FOR STABILIZING HYDROCYANATION CATALYST
    40.
    发明申请
    PROCESS FOR STABILIZING HYDROCYANATION CATALYST 审中-公开
    稳定化学催化剂的方法

    公开(公告)号：WO2013181096A1

    公开(公告)日：2013-12-05

    申请号：PCT/US2013/042640

    申请日：2013-05-24

    Applicant: INVISTA TECHNOLOGIES S.A.R.L.

    Inventor： TENN, William, J., III

    IPC: C07F9/02 ,  C07F15/04 ,  C07B43/08 ,  C07C253/10 ,  B01J27/16 ,  C07F9/40

    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体的配位体水解产物（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。

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