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    TETRAHYDROFURAN PURGE TREATMENT PROCESS
    121.
    发明申请
    TETRAHYDROFURAN PURGE TREATMENT PROCESS 审中-公开
    四氯化碳净化处理工艺

    公开(公告)号：US20150191567A1

    公开(公告)日：2015-07-09

    申请号：US14407492

    申请日：2013-06-04

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

    Inventor： George Malcom Williamson

    IPC: C08G65/30 ,  B01D3/36 ,  C08G65/20

    CPC classification number: C08G65/30 ,  B01D3/36 ,  C08G65/20 ,  C08J11/02

    Abstract: The present invention provides a tetrahydrofuran purge stream treatment process, and a process for manufacturing polyether glycol comprising same. The process for treating a tetrahydrofuran stream purged from a polyether glycol manufacturing process comprises steps of neutralizing acidic substances in a tetrahydrofuran stream purged from the polyether glycol manufacturing process with an aqueous base solution, feeding the neutralized effluent to an azeotropic distillation column, and distilling tetrahydrofuran and water overhead from the azeotropic distillation column. The process can further comprise a step of disposing of the neutralized salts and excess base in the aqueous bottoms stream from the azeotropic distillation column. The process can further comprise steps of recovering THF from the overhead of the azeotropic distillation column, and recycling the recovered THF to a polyether glycol manufacturing process.

    Abstract translation: 本发明提供了一种四氢呋喃清洗流处理方法及其制备包含其的聚醚二醇的方法。 用于处理从聚醚二醇制造方法清洗的四氢呋喃流的方法包括以下步骤：用碱水溶液中和从聚醚二醇制造过程中清除的四氢呋喃流中的酸性物质，将中和的流出物进料到共沸蒸馏塔，并蒸馏四氢呋喃 和来自共沸蒸馏塔的塔顶馏出物。 该方法还可以包括在来自共沸蒸馏塔的水性塔底物流中处理中和的盐和过量的碱的步骤。 该方法还可以包括从共沸蒸馏塔的塔顶馏出物回收THF并将回收的THF循环到聚醚二醇制造方法的步骤。

    CORROSION CONTROL IN AMMONIA EXTRACTION BY AIR SPARGING
    122.
    发明申请
    CORROSION CONTROL IN AMMONIA EXTRACTION BY AIR SPARGING 审中-公开
    通过空气分配提取氨氮的腐蚀控制

    公开(公告)号：US20150175433A1

    公开(公告)日：2015-06-25

    申请号：US14415167

    申请日：2013-06-24

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

    Inventor： Thomas A. Micka ,  Martin J. Renner

    IPC: C01C1/12 ,  B01D53/18

    CPC classification number: C01C1/12 ,  B01D53/14 ,  B01D53/1425 ,  B01D53/18 ,  B01D53/58 ,  B01D53/96 ,  B01D2251/60 ,  B01D2251/608 ,  B01D2251/61 ,  B01D2257/406 ,  C01C3/0212 ,  C01C3/022

    Abstract: The present invention relates to reduction of corrosion. The present invention includes a method of decreasing corrosion during ammonia extraction. The method includes performing a process to extract ammonia using ammonia extraction equipment. The ammonia extraction equipment includes an ammonia absorber, an ammonia desorber, and an aqueous solution. The aqueous solution includes an acid or an ammonium salt thereof. The method also includes sparging an oxygen-containing gas into the solution in the ammonia absorber, the ammonia desorber, or therebetween. The invention also provides a system that can perform the method.

    Abstract translation: 本发明涉及减少腐蚀。 本发明包括在氨提取期间减少腐蚀的方法。 该方法包括执行使用氨提取设备提取氨的方法。 氨提取设备包括氨吸收器，氨解吸器和水溶液。 水溶液包含酸或其铵盐。 该方法还包括将含氧气体喷射到氨吸收器，氨解吸器中或其间的溶液中。 本发明还提供一种可以执行该方法的系统。

    HYDROLYSIS CATALYST AND PROCESS
    123.
    发明申请
    HYDROLYSIS CATALYST AND PROCESS 审中-公开
    水解催化剂和工艺

    公开(公告)号：US20150158892A1

    公开(公告)日：2015-06-11

    申请号：US14404030

    申请日：2013-05-24

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

    Inventor： Sudhir Aki ,  Thomas E. Vos

    IPC: C07F9/145 ,  B01J31/18

    CPC classification number: C07F9/145 ,  B01J31/185 ,  B01J2231/322 ,  C07F9/65744

    Abstract: A process of hydrolyzing a monodentate, bidentate or tridentate phosphorus-based phosphite ester ligand or ligand blend for a transition metal catalyst comprising contacting the ligand or ligand blend with a hydrolysis catalyst of the formula (R11X11)nP(OH)3-n where n is 0, 1 or 2 wherein the ligand or ligand blend 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), (ii) a tridentate triphosphite ligand of formula (IIIA) (R12—X12)(R13—X13)P—X14—Y—X32—P(X34—R34)—(X33—Y2—K24—P(X23—R23)—(X22—R22) or (iii) a monodentate phosphite ligand of formula (IV) P(X1—R1)(X2—R2)(X3—R3) where each X is oxygen or a bond and each Y is an optionally substituted C6-C20 arylene, followed by separation of the ligand hydrolysis products.

    Abstract translation: 水解用于过渡金属催化剂的单齿，二齿或三齿磷基亚磷酸酯配体或配体共混物的方法，包括使配体或配体共混物与式（R 11 X 11）nP（OH）3-n的水解催化剂接触，其中n 是其中配体或配体共混物包含（i）式（III）的二齿二亚磷酸酯配体，（R12-X12）（R13-X13）P-X14-Y-X24-P（ X22-R22）（X23-R23），（ⅱ）式（ⅢA）（R12-X12）（R13-X13）P-X14-Y-X32-P（X34-R34） - （X33- Y2-K24-P（X23-R23） - （X22-R22）或（iii）式（IV）P（X1-R1）（X2-R2）（X3-R3）的单齿亚磷酸酯配体，其中X为氧 或键，并且每个Y是任选取代的C 6 -C 20亚芳基，然后分离配体水解产物。

    STABLE LIGAND MIXTURES AND PROCESSES FOR MAKING SAME
    124.
    发明申请
    STABLE LIGAND MIXTURES AND PROCESSES FOR MAKING SAME 有权
    稳定的配体混合物和制备方法

    公开(公告)号：US20150158812A1

    公开(公告)日：2015-06-11

    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

    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.

    Abstract translation: 在包含水的氢化氰化反应环境中稳定二齿或三齿磷基亚磷酸酯配体或其混合物的方法，其中配体或配体混合物包含（i）式（III）的二齿二亚磷酸酯配体，（ R12-X12）（R13-X13）P-X14-Y-X24-P（X22-R22）（X23-R23）或（ii）式（IIIA）（R12-X12）（R13-X13）的三齿三亚磷酸酯配体 ）X-X-14-Y-X32-P（X34-R34） - （X33-Y2-R24-P（X23-R23） - （X22-R22）其中X为氧或键， C6-C20亚芳基，其包括将二齿和/或三齿与稳定量的一种或多种式P（X1-R1）（X2-R2）（X3-R3）的单齿亚磷酸酯配体（X-R 3）混合，其中每个X为氧或 键，其中所述单齿配体的水解速率大于在氢氰化反应环境中的水存在下二齿或三齿配体的水解速率，并且th 在配体共混物中保留双齿和/或三齿配体的浓度和比例。

    METHODS FOR BIOSYNTHESIZING 1,3 BUTADIENE
    126.
    发明申请
    METHODS FOR BIOSYNTHESIZING 1,3 BUTADIENE 审中-公开
    用于生产1,3丁二烯的方法

    公开(公告)号：US20150079654A1

    公开(公告)日：2015-03-19

    申请号：US14334190

    申请日：2014-07-17

    Applicant: INVISTA North America S.a.r.l.

    Inventor： Adriana Leonora Botes ,  Alex Van Eck Conradie

    IPC: C12P5/02

    CPC classification number: C12P5/026 ,  C12Y402/01127 ,  Y02E50/343

    Abstract: This document describes biochemical pathways for producing butadiene by forming two vinyl groups in a butadiene synthesis substrate. These pathways described herein rely on enzymes such as, inter alia, a decarboxylating thioesterase, cytochrome P450, or dehydratases for the final enzymatic step.

    Abstract translation: 该文献描述了通过在丁二烯合成底物中形成两个乙烯基来生产丁二烯的生化途径。 本文描述的这些途径依赖于酶，例如脱羧硫酯酶，细胞色素P450或用于最终酶促步骤的脱水酶。

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