FEED FORWARD PROCESS CONTROLS FOR NYLON SALT SOLUTION PREPARATION PROCESSES
    12.
    发明申请
    FEED FORWARD PROCESS CONTROLS FOR NYLON SALT SOLUTION PREPARATION PROCESSES 审中-公开
    用于尼龙盐溶液制备工艺的进料过程控制

    公开(公告)号:US20160068634A1

    公开(公告)日:2016-03-10

    申请号:US14786655

    申请日:2014-04-15

    CPC classification number: C08G69/30 C07C51/412 C08G69/28 C07C55/02 C07C55/14

    Abstract: Disclosed are process controls for controlling the continuous preparation of nylon salt solution. The process controls include feed forward controls. A model is generated to achieve a target pH and/or salt concentration. Feed rates are set for each of a dicarboxylic acid monomer, a diamine monomer, and/or water to a single continuous stirred tank reactor. The dicarboxylic acid is metered, based on weight, from a loss-in-weight feeder to the reactor. The nylon salt solution is formed continuously and has low variability from a target pH and/or a target salt solution concentration. The nylon salt solution is transferred directly to a storage tank, without further monomer addition, pH adjustment, or salt solution adjustment after exiting the continuous stirred tank reactor.

    Abstract translation: 公开了用于控制尼龙盐溶液的连续制备的工艺控制。 过程控制包括前馈控件。 产生模型以实现目标pH和/或盐浓度。 将二羧酸单体,二胺单体和/或水中的每一种的进料速率设定为单个连续搅拌釜反应器。 二羧酸以重量计,从重量损失的进料器计量到反应器。 尼龙盐溶液连续形成,并且从目标pH和/或目标盐溶液浓度的变异性低。 将尼龙盐溶液直接转移到储罐中,在离开连续搅拌釜反应器后不再进一步加入单体,调节pH值或盐溶液。

    METHODS AND SYSTEMS FOR THE RECOVERY OF WATER FROM A POLYAMIDE SYNTHESIS PROCESS
    13.
    发明申请
    METHODS AND SYSTEMS FOR THE RECOVERY OF WATER FROM A POLYAMIDE SYNTHESIS PROCESS 审中-公开
    从聚酰胺合成过程中回收水的方法和系统

    公开(公告)号:US20160060395A1

    公开(公告)日:2016-03-03

    申请号:US14786667

    申请日:2014-04-15

    CPC classification number: C08G69/28 B01J19/00

    Abstract: The present disclosure relates to systems and methods for manufacturing a polyamide. The method can include obtaining, from a reservoir, an aqueous solution comprising a dicarboxylic acid, a diamine, and water having a substantially liquid phase; concentrating the aqueous solution including transforming a portion of the water having a substantially liquid phase to water having a substantially gaseous phase; condensing the water having a substantially gaseous phase into condensed water having a substantially liquid phase; removing at least one impurity from at least one of the condensed water having a substantially liquid phase and the water having a substantially gaseous phase to produce cleaned water having a substantially liquid phase; and reusing the cleaned water having a substantially liquid phase. The system can include, among other things, a reservoir; an evaporator assembly, in fluid communication with the reservoir; a condensation assembly, in fluid communication with the evaporator assembly; a collection assembly; and a conduit network.

    Abstract translation: 本公开涉及制造聚酰胺的系统和方法。 该方法可以包括从储器获得包含二羧酸,二胺和基本上液相的水的水溶液; 浓缩水溶液,包括将具有基本上液相的水的一部分转化为具有基本上气相的水; 将具有基本上气相的水冷凝成具有基本上液相的冷凝水; 从至少一个具有基本上液相的冷凝水中除去至少一种杂质,并且所述水具有基本上气相以产生具有基本上液相的净化水; 并重新使用具有基本上液相的净化水。 除了别的以外,该系统可以包括一个储存器; 与储存器流体连通的蒸发器组件; 与蒸发器组件流体连通的冷凝组件; 收集组件; 和管道网络。

    MULTIPLE HEAT-TRANSFER MEDIA
    14.
    发明申请
    MULTIPLE HEAT-TRANSFER MEDIA 审中-公开
    多传热介质

    公开(公告)号:US20160059200A1

    公开(公告)日:2016-03-03

    申请号:US14786672

    申请日:2014-04-15

    Abstract: The present invention relates to methods, systems, and apparatus for making polyamides having at least two heat-transfer media. The method includes heating a first flowable heat-transfer medium, to provide a heated first flowable heat-transfer medium. The method includes transferring heat from the heated first flowable heat-transfer medium to a second flowable heat-transfer medium, to provide a heated second flowable heat-transfer medium. The method also includes transferring heat from the heated second flowable heat-transfer medium to at least one polyamide-containing component of a polyamide synthesis system.

    Abstract translation: 本发明涉及制备具有至少两个传热介质的聚酰胺的方法,系统和装置。 该方法包括加热第一可流动的传热介质,以提供加热的第一可流动的传热介质。 该方法包括将热量从加热的第一可流动的热传递介质传递到第二可流动的传热介质,以提供加热的第二可流动的传热介质。 该方法还包括将热量从加热的第二可流动传热介质转移到聚酰胺合成系统的至少一种含聚酰胺的组分。

    PROCESS FOR STABILIZING HEAT EXCHANGER TUBES IN ANDRUSSOW PROCESS
    15.
    发明申请
    PROCESS FOR STABILIZING HEAT EXCHANGER TUBES IN ANDRUSSOW PROCESS 审中-公开
    在安捷伦工艺中稳定换热器管的方法

    公开(公告)号:US20160046498A1

    公开(公告)日:2016-02-18

    申请号:US14742134

    申请日:2013-12-12

    Abstract: The present invention relates to an improved process for producing hydrogen cyanide involving a heat exchanger comprising a plurality of tubes, wherein each of the plurality of tubes comprises a ceramic ferrule extending through the entrance of the tube, each ferrule comprising an insulation layer surrounding at least a portion of the ferrule, and one or more washers, wherein at least one of the one or more washers surrounds the ferrule above the entrance of the tube, wherein the ceramic ferrule is spaced apart from the tube. It further relates to a reaction apparatus for producing hydrogen cyanide involving a heat exchanger comprising a plurality of tubes, wherein each of the plurality of tubes comprises a ceramic ferrule extending through the entrance of the tube, each ferrule comprising an insulation layer surrounding at least a portion of the ferrule, and one or more washers, wherein at least one of the one or more washers surrounds the ferrule above the entrance of the tube, wherein the ceramic ferrule is spaced apart from the tube. It further relates to the heat exchanger for use in this improved process and reaction apparatus.

    Abstract translation: 本发明涉及一种生产氰化氢的改进方法,该方法涉及包括多个管的热交换器,其中多个管中的每个管包括延伸穿过管的入口的陶瓷套圈,每个套圈包括至少包围绝缘层 所述套圈的一部分和一个或多个垫圈,其中所述一个或多个垫圈中的至少一个围绕所述管的入口上方的所述套圈,其中所述陶瓷套圈与所述管间隔开。 本发明还涉及一种用于生产含有多个管的热交换器的氰化氢的反应装置,其中多个管中的每个管包括延伸穿过管的入口的陶瓷套圈,每个套圈包括至少一个 所述套圈的一部分以及一个或多个垫圈,其中所述一个或多个垫圈中的至少一个围绕所述管的入口上方的所述套圈,其中所述陶瓷套圈与所述管间隔开。 它还涉及用于该改进的方法和反应装置的热交换器。

    HYDROGEN CYANIDE PRODUCTION WITH CONTROLLED FEEDSTOCK COMPOSITION
    16.
    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

    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。

    PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS
    17.
    发明申请
    PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS 审中-公开
    生产包含NITRILE功能的化合物的方法

    公开(公告)号:US20160009638A1

    公开(公告)日:2016-01-14

    申请号:US14865948

    申请日:2015-09-25

    Abstract: Process for producing compounds comprising nitrile functionsThe present invention relates to a process for producing compounds comprising at least one nitrile function by hydrocyanation of a compound comprising at least one non-conjugated unsaturation.The invention proposes a process for producing compounds comprising at least one nitrile function by hydrocyanation of an organic compound comprising at least one non-conjugated unsaturation, comprising from 2 to 20 carbon atoms, by reaction with hydrogen cyanide in the presence of a catalytic system comprising a complex of nickel having the oxidation state of zero with at least one organophosphorus ligand chosen from the group comprising organophosphites, organophosphonites, organophosphinites and organosphosphines and a cocatalyst of the Lewis acid type.

    Abstract translation: 用于生产包含腈功能的化合物的方法本发明涉及通过氢化氰化化合物制备包含至少一种腈官能团的化合物的方法,所述化合物包含至少一种非共轭不饱和键。 本发明提出了一种制备包含至少一个腈官能团的化合物的方法,所述化合物包括至少一种包含至少一个含有2-20个碳原子的非共轭不饱和键的有机化合物,所述有机化合物包括2-20个碳原子,在氰化氢的存在下, 具有氧化态为零的镍与至少一种选自有机亚磷酸酯,有机亚膦酸酯,有机亚磷酸酯和有机膦的有机磷配体的络合物和路易斯酸型助催化剂。

    PROCESS FOR PRODUCING PENTENENITRILES
    18.
    发明申请
    PROCESS FOR PRODUCING PENTENENITRILES 有权
    生产苯胺的方法

    公开(公告)号:US20150314279A1

    公开(公告)日:2015-11-05

    申请号:US14649593

    申请日:2013-12-05

    Inventor: Thomas E. VOS

    Abstract: The invention provides methods useful in the industrial scale process for hydrocyanation of butadiene to adiponitrile for recycle of unwanted byproduct 2-methyl-3-butenenitrile (2M3BN) by conversion to process intermediate pentenenitrile. The invention provides a process for generating catalysts useful for carrying out the hydrocyanation of butadiene to adiponitrile, the process comprising contacting the 2M3BN and a solution of a nickel-ligand catalyst in cis-2-pentenenitrile (cis-2PN), trans-2-pentenenitrile (trans-2PN), or a mixture thereof. The improved methods of the invention can provide improved catalyst solubility for bidentate ligands without a requirement for a Lewis acid catalyst promoter such as zinc chloride to be present.

    Abstract translation: 本发明提供了用于将丁二烯氢化成己二腈的工业规模工艺中用于通过转化为中间体戊烯腈再循环不需要的副产物2-甲基-3-丁烯腈(2M 3 BN)的方法。 本发明提供了一种用于产生用于进行丁二烯至己二腈的氢氰化的催化剂的方法,该方法包括使2M3BN与镍 - 配位体催化剂在顺式-2-戊烯腈(顺式-2PN),反式-2- 戊烯腈(反式-2PN)或其混合物。 本发明的改进方法可以提供改进的二齿配体的催化剂溶解度,而不需要存在路易斯酸催化剂促进剂如氯化锌。

    PENTENENITRILE ISOMERIZATION
    19.
    发明申请
    PENTENENITRILE ISOMERIZATION 有权
    PENTENENITRILE异构化

    公开(公告)号:US20150299106A1

    公开(公告)日:2015-10-22

    申请号:US14649644

    申请日:2013-12-05

    Abstract: Disclosed is a process for isomerizing cis-2-pentenenitrile to 3-pentenenitrile in the presence of a non-aluminium metal oxide catalyst, wherein: (a) the metal in the catalyst has an oxidation state in the range from +1 to +4; (b) the metal has a cation radius in the range from 0.35 to 1.0 Å; (c) the metal of the catalyst has a polarising power, C/r, is in the range from 2 to >8, wherein C is the charge of the metal and r is the ionic radius in Å; (d) the bond network of the catalyst has a % ionicity of >20; (e) the metal oxide has an acidity strength in the range from strong to very weak; and (f) the metal oxide has a basicity (nucleophilicity) strength of weak to strong.

    Abstract translation: 公开了一种在非铝金属氧化物催化剂存在下将顺式-2-戊烯腈异构化为3-戊烯腈的方法,其中:(a)催化剂中的金属的氧化态为+1至+4 ; (b)金属的阳离子半径在0.35至1.0的范围内; (c)催化剂的金属具有极化功率,C / r在2至> 8的范围内,其中C是金属的电荷,r是的离子半径; (d)催化剂的键合网络具有> 20的%离子性; (e)金属氧化物的酸度强度在强到非常弱的范围内; 和(f)金属氧化物具有弱至强的碱性(亲核性)强度。

    PROCESS FOR STABILIZING HYDROCYANATION CATALYST
    20.
    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

    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。

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