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    CONTINUOUS METHOD FOR MULTI-STAGED DRYING AND SUBSEQUENT CONDENSATION OF A POLYAMIDE GRANULATE
    6.
    发明申请
    CONTINUOUS METHOD FOR MULTI-STAGED DRYING AND SUBSEQUENT CONDENSATION OF A POLYAMIDE GRANULATE 有权
    聚氨酯颗粒多级干燥和后续凝结的连续方法

    公开(公告)号：US20110092645A1

    公开(公告)日：2011-04-21

    申请号：US12999988

    申请日：2009-06-19

    申请人： Wolfgang Loth ,  Faissal-Ali El-Toufaili ,  Achim Stammer ,  Gad Kory ,  Achim Gerstlauer ,  Jens Becker

    发明人： Wolfgang Loth ,  Faissal-Ali El-Toufaili ,  Achim Stammer ,  Gad Kory ,  Achim Gerstlauer ,  Jens Becker

    IPC分类号： C08L77/06 ,  C08L77/00 ,  C08G63/91

    CPC分类号： C08G69/46 ,  C08G69/16

    摘要： A continuous process for the multistage drying and postcondensation of polyamide pellets in the solid phase comprises 1) carrying out the predrying process in a continuous drying apparatus which is operated in countercurrent mode or in crossflow mode with inert gas or steam, or with a mixture of inert gas and steam, using a pellet temperature in the range from 70 to 200° C., and 2) Carrying out the subsequent continuous postcondensation process in a separate vertical duct with moving bed at a pellet temperature in the range from 120 to 210° C., where the duct is operated in countercurrent mode with inert gas or steam, or with a mixture of inert gas and steam, the inert gas is introduced at least two sites along the duct, and from 15 to 90% of the inert gas is introduced at the base of the vertical duct and from 10 to 85% of the inert gas is introduced in the upper half below the surface of the pellets.

    摘要翻译： 用于固相中聚酰胺粒料的多级干燥和缩聚的连续方法包括：1）在连续干燥装置中进行预干燥过程，所述连续干燥装置以逆流模式或与惰性气体或蒸汽交叉流动模式运行，或者与 惰性气体和蒸汽，使用颗粒温度在70至200℃的范围内，以及2）在具有移动床的单独的垂直管道中进行随后的连续缩聚过程，颗粒温度在120至210℃的范围内 C.其中管道以逆流模式与惰性气体或蒸汽或惰性气体和蒸汽的混合物操作，惰性气体沿着管道被引入至少两个位置，并且惰性气体的15至90％ 引入垂直管道的底部，并且10至85％的惰性气体被引入颗粒表面下方的上半部分。

    PROCESS FOR CONTINUOUSLY PREPARING COPOLYAMIDES FROM LACTAMS AND SALTS OF DIAMINES AND DICARBOXYLIC ACIDS
    7.
    发明申请
    PROCESS FOR CONTINUOUSLY PREPARING COPOLYAMIDES FROM LACTAMS AND SALTS OF DIAMINES AND DICARBOXYLIC ACIDS 有权
    从乳酸盐和二胺和二羧酸的盐中连续制备共聚酰胺的方法

    公开(公告)号：US20110245435A1

    公开(公告)日：2011-10-06

    申请号：US13139133

    申请日：2009-12-09

    申请人： Christoph Plachetta ,  Achim Gerstlauer ,  Reinhard Lang ,  Thomas Sauer ,  Jens Becker

    发明人： Christoph Plachetta ,  Achim Gerstlauer ,  Reinhard Lang ,  Thomas Sauer ,  Jens Becker

    IPC分类号： C08F2/01 ,  C08G69/14

    CPC分类号： C08G69/36 ,  C08G69/08 ,  C08G69/28 ,  C08L77/00

    摘要： A process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids, in which lactams together with salts of diamines and dicarboxylic acids are passed from the top downward through a vertical polymerization tube at polyamide-forming temperatures, which comprises a) intensively mixing an aqueous solution of lactams with salts of diamines and dicarboxylic acids under elevated pressure which is greater than the vapor pressure of the mixture which arises in a mixing apparatus at a temperature of from 80 to 300° C., b) feeding the mixture thus obtained to a heated helical tube evaporator in which a liquid phase and a vapor phase form at a temperature of from 140 to 300° C., a stream of water vapor and/or inert gas also being introduced into the mixture if appropriate upstream of the helical tube, c) removing the vapor phase formed in stage b) from the liquid phase and separating it in a column into water vapor and into organic components comprising diamines, dicarboxylic acids and lactams, and recycling the organic components into the polymerization, d) passing the liquid phase from the helical tube of stage b) mixed with the organic components of stage c) from the top downward through a vertical polymerization tube at polyamide-forming temperatures to obtain a copolyamide.

    摘要翻译： 其中内酰胺和二胺和二羧酸的盐连续制备共聚酰胺和二胺和二羧酸的盐的方法，其中内酰胺与二胺和二羧酸的盐在聚酰胺形成温度下从顶部向下通过垂直聚合管，其包括a）浓缩混合 在升高的压力下具有二胺和二羧酸的盐的内酰胺的水溶液，其大于在混合装置中在80至300℃的温度下产生的混合物的蒸气压，b）将如此获得的混合物 到一个加热的螺旋管式蒸发器，其中液相和气相在140-300℃的温度下形成，如果合适的话，水蒸气和/或惰性气体也被引入到混合物的上游 管，c）从液相中除去阶段b）中形成的气相，并将其在塔中分离成水蒸汽，并加入有机组分，包括 二胺，二羧酸和内酰胺，并将有机组分再循环到聚合中，d）将来自与步骤c）的有机组分混合的阶段b）的螺旋管的液相从顶部向下通过垂直聚合管在聚酰胺 得到共聚酰胺。

    Process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids
    8.
    发明授权
    Process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids 有权
    从内酰胺和二胺和二羧酸的盐连续制备共聚酰胺的方法

    公开(公告)号：US09200115B2

    公开(公告)日：2015-12-01

    申请号：US13139133

    申请日：2009-12-09

    申请人： Christoph Plachetta ,  Achim Gerstlauer ,  Reinhard Lang ,  Thomas Sauer ,  Jens Becker

    发明人： Christoph Plachetta ,  Achim Gerstlauer ,  Reinhard Lang ,  Thomas Sauer ,  Jens Becker

    IPC分类号： C08G69/36 ,  C08L77/00 ,  C08G69/28 ,  C08G69/08

    CPC分类号： C08G69/36 ,  C08G69/08 ,  C08G69/28 ,  C08L77/00

    摘要： A process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids, in which lactams together with salts of diamines and dicarboxylic acids are passed from the top downward through a vertical polymerization tube at polyamide-forming temperatures, which comprises a) intensively mixing an aqueous solution of lactams with salts of diamines and dicarboxylic acids under elevated pressure which is greater than the vapor pressure of the mixture which arises in a mixing apparatus at a temperature of from 80 to 300° C., b) feeding the mixture thus obtained to a heated helical tube evaporator in which a liquid phase and a vapor phase form at a temperature of from 140 to 300° C., a stream of water vapor and/or inert gas also being introduced into the mixture if appropriate upstream of the helical tube, c) removing the vapor phase formed in stage b) from the liquid phase and separating it in a column into water vapor and into organic components comprising diamines, dicarboxylic acids and lactams, and recycling the organic components into the polymerization, d) passing the liquid phase from the helical tube of stage b) mixed with the organic components of stage c) from the top downward through a vertical polymerization tube at polyamide-forming temperatures to obtain a copolyamide.

    摘要翻译： 其中内酰胺和二胺和二羧酸的盐连续制备共聚酰胺和二胺和二羧酸的盐，其中内酰胺与二胺和二羧酸的盐在聚酰胺形成温度下从顶部向下通过垂直聚合管，其包括a）浓缩混合 在升高的压力下具有二胺和二羧酸的盐的内酰胺的水溶液，其大于在混合装置中在80至300℃的温度下产生的混合物的蒸气压，b）将如此获得的混合物 到一个加热的螺旋管式蒸发器，其中液相和气相在140-300℃的温度下形成，如果合适的话，水蒸气和/或惰性气体也被引入到混合物的上游 管，c）从液相中除去阶段b）中形成的气相，并将其在塔中分离成水蒸汽，并加入有机组分，包括 二胺，二羧酸和内酰胺，并将有机组分再循环到聚合中，d）将来自与阶段c）的有机组分混合的阶段b）的螺旋管的液相从顶部向下通过垂直聚合管在聚酰胺 得到共聚酰胺。

    Continuous method for multi-staged drying and subsequent condensation of a polyamide granulate
    9.
    发明授权
    Continuous method for multi-staged drying and subsequent condensation of a polyamide granulate 有权
    多级干燥和聚酰胺颗粒随后冷凝的连续方法

    公开(公告)号：US08703879B2

    公开(公告)日：2014-04-22

    申请号：US12999988

    申请日：2009-06-19

    申请人： Wolfgang Loth ,  Faissal-Ali El-Toufaili ,  Achim Stammer ,  Gad Kory ,  Achim Gerstlauer ,  Jens Becker

    发明人： Wolfgang Loth ,  Faissal-Ali El-Toufaili ,  Achim Stammer ,  Gad Kory ,  Achim Gerstlauer ,  Jens Becker

    IPC分类号： C08G69/16 ,  C08G69/46 ,  C08L77/00

    CPC分类号： C08G69/46 ,  C08G69/16

    摘要： A continuous process for the multistage drying and postcondensation of polyamide pellets in the solid phase comprises 1) carrying out the predrying process in a continuous drying apparatus which is operated in countercurrent mode or in crossflow mode with inert gas or steam, or with a mixture of inert gas and steam, using a pellet temperature in the range from 70 to 200° C., and 2) Carrying out the subsequent continuous postcondensation process in a separate vertical duct with moving bed at a pellet temperature in the range from 120 to 210° C., where the duct is operated in countercurrent mode with inert gas or steam, or with a mixture of inert gas and steam, the inert gas is introduced at least two sites along the duct, and from 15 to 90% of the inert gas is introduced at the base of the vertical duct and from 10 to 85% of the inert gas is introduced in the upper half below the surface of the pellets.

    摘要翻译： 用于固相中聚酰胺粒料的多级干燥和缩聚的连续方法包括：1）在连续干燥装置中进行预干燥过程，所述连续干燥装置以逆流模式或与惰性气体或蒸汽交叉流动模式运行，或者与 惰性气体和蒸汽，使用颗粒温度在70至200℃的范围内，以及2）在具有移动床的单独的垂直管道中进行随后的连续缩聚过程，颗粒温度在120至210℃的范围内 C.其中管道以逆流模式与惰性气体或蒸汽或惰性气体和蒸汽的混合物操作，惰性气体沿着管道被引入至少两个位置，并且惰性气体的15至90％ 引入垂直管道的底部，并且10至85％的惰性气体被引入颗粒表面下方的上半部分。