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    HYDROGEN CYANIDE PRODUCTION WITH CONTROLLED FEEDSTOCK COMPOSITION
    4.
    发明申请
    HYDROGEN CYANIDE PRODUCTION WITH CONTROLLED FEEDSTOCK COMPOSITION 审中-公开
    氢化氰化物生产与控制饲料组合物

    公开(公告)号：US20160046496A1

    公开(公告)日：2016-02-18

    申请号：US14741744

    申请日：2013-12-12

    Applicant: INVISTA TECHNOLOGIES S.à r.l.

    Inventor： John C. CATON ,  David W. RABENALDT

    IPC: C01C3/02

    CPC classification number: C01C3/0212 ,  C10L3/101

    Abstract: The present invention relates to a process for producing hydrogen cyanide and more particularly, to a process for economically producing hydrogen cyanide. More particularly, the present invention relates to the controlled use of a ternary gas mixture including a methane-containing gas comprising less than 1 vol. % C2+ hydrocarbons, such as, for example, less than 5,000 mpm C2+ hydrocarbons, an ammonia-containing gas, and an oxygen-containing gas for production of hydrogen cyanide at enhanced levels of productivity and yield.

    Abstract translation: 本发明涉及一种生产氰化氢的方法，更具体地说，涉及一种经济地生产氰化氢的方法。 更具体地说，本发明涉及包含含有少于1体积％的含甲烷气体的三元气体混合物的受控使用。 ％C2 +烃，例如小于5,000mpm的C2 +烃，含氨气体和含氧气体，以提高生产率和产率来生产氰化氢。

    PARAXYLENE EXTRACTION OF PURIFICATION MOTHER LIQUOR WITH HEAT INTEGRATION
    5.
    发明申请
    PARAXYLENE EXTRACTION OF PURIFICATION MOTHER LIQUOR WITH HEAT INTEGRATION 有权

    公开(公告)号：US20170240497A1

    公开(公告)日：2017-08-24

    申请号：US15513373

    申请日：2015-09-23

    Applicant: INVISTA TECHNOLOGIES S.À R.L.

    Inventor： ALAN MACPHERSON URE ,  ANTONY PETER JOHN LIMBACH

    IPC: C07C51/16 ,  B01D3/14 ,  B01D17/02 ,  B01D11/04

    CPC classification number: C07C51/16 ,  B01D3/143 ,  B01D11/0426 ,  B01D11/043 ,  B01D11/0492 ,  B01D17/02 ,  C07C51/265 ,  C07C51/44 ,  C07C51/48 ,  C07C63/26

    Abstract: The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) separating a vent gas from an oxidation stage into an organic solvent-rich liquid stream and a water-rich vapour stream in a distillation stage; and ii) separating an aqueous purific ation mother liquor comprising organic compounds from purified aromatic dicarboxylic acid crystals in a separation stage, characterised in that the process further comprises the steps of: iii) transferring the aqueous purification mother liquor from the separation stage to an extraction stage; iv) extracting said organic compounds from the aqueous purification mother liquor by contacting the aqueous purification mother liquor at a temperature of at least 90° C. with an organic liquid in the extraction stage to form an aqueous phase and an organic phase, wherein the concentration of said organic compounds in the aqueous phase is lower than the concentra tion of said organic compounds in the aqueous purification mother liquor; and v) transferring the aqueous phase to said distillation stage. The present invention further provides an apparatus for carrying out the process.

    STRETCH CIRCULAR KNIT FABRICS WITH MULTIPLE ELASTIC YARNS
    6.
    发明申请
    STRETCH CIRCULAR KNIT FABRICS WITH MULTIPLE ELASTIC YARNS 有权
    带多根弹性纱线的圆形针织面料

    公开(公告)号：US20160251782A1

    公开(公告)日：2016-09-01

    申请号：US15097446

    申请日：2014-10-14

    Applicant: INVISTA TECHNOLOGIES S.à r.l.

    Inventor： Tianyi LIAO ,  Fred C. WYNEGAR ,  Raymond S.P. LEUNG ,  Cheng-Yuan CHUANG ,  Juan CERA

    IPC: D04B1/18

    CPC classification number: D04B1/18 ,  D10B2403/0114 ,  Y02P70/633

    Abstract: An article comprising a knit fabric having a surface side and a base side, and including a set of ground yarns and a layer of effect yarns, wherein the ground yarns and effect yarns are knit through intermesh points in a predetermined arrangement wherein the effect yarns are alternately arranged with the ground yarns and wherein the ground yarns comprise at least one elastic fiber and optionally at least one hard fiber, and the effect yarns comprise at least one hard fiber and optionally an elastic fiber.

    Abstract translation: 一种制品，包括具有表面侧和底侧的针织织物，并且包括一组研磨纱线和一层效果纱线，其中所述研磨纱线和效果纱线以预定布置编织穿过相互间的点，其中所述效果纱线是 交替地布置有研磨纱线，并且其中所述研磨纱线包括至少一种弹性纤维和任选的至少一种硬质纤维，并且所述效果纱线包括至少一种硬质纤维和任选的弹性纤维。

    CONTINUOUS POLYAMIDATION PROCESS - I
    8.
    发明申请
    CONTINUOUS POLYAMIDATION PROCESS - I 有权
    连续聚酰胺工艺 -

    公开(公告)号：US20160289383A1

    公开(公告)日：2016-10-06

    申请号：US15037633

    申请日：2014-11-20

    Applicant: INVISTA TECHNOLOGIES S.À R.L.

    Inventor： Ernest Keith MARCHILDON ,  Karen A. SURGENOR ,  Bryan D. KAUSHIVA

    IPC: C08G69/28

    CPC classification number: C08G69/28 ,  B01J4/002 ,  B01J10/002 ,  B01J14/00 ,  B01J19/0006 ,  B01J19/006 ,  B01J19/0066 ,  B01J19/18 ,  B01J19/245 ,  B01J2219/00186 ,  B01J2219/002 ,  B01J2219/00202 ,  B01J2219/00231 ,  C08L77/00

    Abstract: A continuous process for the manufacture of a polyamide, the process comprising the steps of: (i) flowing a stream A comprising a molten dicarboxylic acid, or a molten dicarboxylic acid-rich mixture comprising a dicarboxylic acid and a diamine, through a first stage and at least one more reaction stage of a vertical multistage reactor, wherein the first stage is at the top of the reactor; (ii) counter-currently flowing a stream B comprising a diamine as either a vapour or a diamine-rich liquid through at least one of the stages below the first reaction stage of said vertical multistage reactor; (iii) accumulating a liquid phase material P comprising polyamide at and/or below the final stage of said reactor; wherein said reactor is equipped with internal features suitable for effecting contact between counter-currently flowing streams A and B; and wherein said process further comprises the step of agitating said liquid phase material P by injecting a gaseous stream C comprising steam, or at least one inert gas, or a mixture of steam and at least one inert gas into the reactor at or below the final stage of the reactor. The invention further provides a vertical multistage reactor configured to implement said process.

    Abstract translation: 一种用于制造聚酰胺的连续方法，该方法包括以下步骤：（i）使包含二羧酸和二胺的熔融二羧酸或熔融二羧酸富混合物的流A通过第一阶段 以及垂直多级反应器的至少一个反应阶段，其中第一级位于反应器的顶部; （ii）将包含二胺的流B逆流地流过位于所述垂直多级反应器的第一反应级之下的至少一个级的蒸气或二胺富液体; （iii）在所述反应器的最后阶段和/或之下积聚包含聚酰胺的液相材料P; 其中所述反应器配备有适于实现逆向流动流A和B之间的接触的内部特征; 并且其中所述方法还包括通过将包含蒸汽或至少一种惰性气体或蒸汽与至少一种惰性气体的混合物的气流C注入到反应器中或之下而最终搅拌所述液相材料P的步骤 反应堆的阶段。 本发明还提供了一种被配置为实现所述过程的立式多级反应器。

    SEPARATING A SOLVENT FROM A NICKEL CATALYST BY DISTILLATION
    9.
    发明申请
    SEPARATING A SOLVENT FROM A NICKEL CATALYST BY DISTILLATION 审中-公开
    通过蒸馏从镍催化剂分离溶剂

    公开(公告)号：US20160168081A1

    公开(公告)日：2016-06-16

    申请号：US14904726

    申请日：2014-07-16

    Applicant: INVISTA TECHNOLOGIES S.À R.L.

    Inventor： Sudhir N.V.K. AKI ,  James M. GARNER ,  William J. TENN ,  Thomas E. VOS

    IPC: C07C253/10 ,  C07C253/34 ,  B01D3/14 ,  B01J31/18

    Abstract: A solvent is at least partially separated from a catalyst. The catalyst comprises nickel and a bidentate phosphorus-containing ligand. The method for separation involves distilling a catalyst solution. The ratio of 2-pentenenitrile to 3-pentenenitrile in distillation column bottoms is controlled to reduce the amount of 3-pentenenitrile which is isomerized to form 2-methyl-3-butenenitrile. Isomerization of 3-pentenenitrile to 2-methyl-3-butenenitrile and subsequent isomerization of 2-methyl-3-butenenitrile to 2-methyl-2-butenenitrile, and/or hydrocyanation of 2-methyl-3-butenenitrile to methylglutaronitrile represents a loss in adiponitrile yield in a process for making adiponitrile.

    Abstract translation: 溶剂至少部分地与催化剂分离。 该催化剂包括镍和二齿含磷配体。 分离方法包括蒸馏催化剂溶液。 控制蒸馏柱底部中2-戊烯腈与3-戊烯腈的比例，以减少异构化形成2-甲基-3-丁烯腈的3-戊烯腈的量。 3-戊烯腈异构化为2-甲基-3-丁烯腈，随后将2-甲基-3-丁烯腈异构化为2-甲基-2-丁烯腈，和/或2-甲基-3-丁烯腈氢化为甲基戊二烯代表损失 在己二腈的制备方法中的己二腈产率。

    Paraxylene extraction of purification mother liquor with heat integration
    10.
    发明授权
    Paraxylene extraction of purification mother liquor with heat integration 有权

    公开(公告)号：US09975839B2

    公开(公告)日：2018-05-22

    申请号：US15513373

    申请日：2015-09-23

    Applicant: INVISTA TECHNOLOGIES S.À R.L.

    Inventor： Alan Macpherson Ure ,  Antony Peter John Limbach

    IPC: C07C51/42 ,  C07C51/16 ,  B01D11/04 ,  B01D3/14 ,  B01D17/02

    CPC classification number: C07C51/16 ,  B01D3/143 ,  B01D11/0426 ,  B01D11/043 ,  B01D11/0492 ,  B01D17/02 ,  C07C51/265 ,  C07C51/44 ,  C07C51/48 ,  C07C63/26

    Abstract: The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) separating a vent gas from an oxidation stage into an organic solvent-rich liquid stream and a water-rich vapor stream in a distillation stage; and ii) separating an aqueous purification mother liquor comprising organic compounds from purified aromatic dicarboxylic acid crystals in a separation stage, characterized in that the process further comprises the steps of: iii) transferring the aqueous purification mother liquor from the separation stage to an extraction stage; iv) extracting said organic compounds from the aqueous purification mother liquor by contacting the aqueous purification mother liquor at a temperature of at least 90° C. with an organic liquid in the extraction stage to form an aqueous phase and an organic phase, wherein the concentration of said organic compounds in the aqueous phase is lower than the concentration of said organic compounds in the aqueous purification mother liquor; and v) transferring the aqueous phase to said distillation stage. The present invention further provides an apparatus for carrying out the process.

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