公开(公告)号：US20160068633A1

公开(公告)日：2016-03-10

申请号：US14786677

申请日：2014-04-15

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

Inventor： Thomas A. MICKA ,  Charles R. KELMAN, SR. ,  John P. POINSATTE ,  Robert J. WELCH ,  Gary R. WEST

IPC: C08G69/28 ,  B01J19/24

CPC classification number: C08G69/28 ,  B01J19/2415

Abstract: The present disclosure relates to systems and methods for recovering water from a condensation reaction of at least one carboxylic acid and at least one diamine to make polyamide. The method can include obtaining, from an evaporator, an aqueous mixture comprising a partially polymerized polyamide and at least one of a carboxylic acid and diamine; passing the aqueous mixture through a tubular reactor comprising subjecting the aqueous mixture to a temperature and pressure sufficient to further polymerize the partially polymerized polyamide by condensation of the carboxylic acid and diamine, thereby producing water having a substantially gaseous phase; passing the water having a substantially gaseous phase into a rectification column thereby removing one or more of a diamine, a carboxylic acid and polyamide to provide purified water having a substantially gaseous phase; and condensing the purified water having a substantially gaseous phase into purified water having a substantially liquid phase. The system can include, among other things, a tubular reactor, a rectification column, a condensation assembly, and a conduit network.

Abstract translation: 本公开涉及从至少一种羧酸和至少一种二胺的缩合反应中回收水以制备聚酰胺的系统和方法。 该方法可以包括从蒸发器获得包含部分聚合的聚酰胺和至少一种羧酸和二胺的含水混合物; 使含水混合物通过管式反应器，包括使含水混合物经受足以通过羧酸和二胺的缩合进一步聚合部分聚合的聚酰胺的温度和压力，从而产生具有基本气相的水; 将具有基本气相的水通入精馏塔中，从而除去二胺，羧酸和聚酰胺中的一种或多种以提供具有基本上气相的净化水; 并将具有基本气相的净化水冷凝成具有基本上液相的纯净水。 该系统可以包括管式反应器，精馏塔，冷凝组件和导管网络。

公开(公告)号：US20160059200A1

公开(公告)日：2016-03-03

申请号：US14786672

申请日：2014-04-15

Applicant: INVISTA NORTH AMERICA

Inventor： Thomas A. MICKA ,  Charles R. KELMAN, Sr. ,  John P. POINSATTE

IPC: B01J19/00 ,  F28F23/00 ,  C09K5/10 ,  C08G69/28

CPC classification number: B01J19/0013 ,  B01J2219/00074 ,  B01J2219/00083 ,  B01J2219/00085 ,  C08G69/28 ,  C09K5/04 ,  C09K5/10 ,  F28F23/00

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。