公开(公告)号：WO2014179052A1

公开(公告)日：2014-11-06

申请号：PCT/US2014/034173

申请日：2014-04-15

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

Inventor： MONSTER, Leen ,  MOLENDIJK, Leonardus J.

IPC: C08G69/28 ,  B01J3/03 ,  B01J3/04 ,  F16J15/34 ,  B01F15/00 ,  B01J19/18

CPC classification number: B01J19/18 ,  B01F7/242 ,  B01F13/065 ,  B01F15/00681 ,  B01F15/065 ,  B01F15/066 ,  B01F2015/062 ,  B01F2215/0468 ,  B01F2215/0481 ,  B01J2219/00054 ,  B01J2219/00065 ,  B01J2219/00078 ,  B01J2219/00081 ,  B01J2219/00085 ,  B01J2219/0009 ,  B01J2219/00189 ,  C08G69/28

Abstract: An agitated autoclave comprises an autoclave vessel, an agitator, and a mechanical seal. The autoclave vessel can be adapted to receive and polymerize a polyamide salt composition to form a polyamide polymer. The agitator includes a shaft, an auger portion, and a drive portion. The mechanical seal forms a pressure boundary about the shaft at or adjacent to a wall of the autoclave vessel. The mechanical seal includes a pressurized water chamber pressurized with seal water in contact with the shaft and is held at a seal pressure greater a vessel pressure within the autoclave vessel. The seal water in the pressurized water chamber has a calcium content of less than 3 ppm and an iron content of less than 0.3 ppm.

Abstract translation: 搅拌的高压釜包括高压釜容器，搅拌器和机械密封。 高压釜容器可以适于接收和聚合聚酰胺盐组合物以形成聚酰胺聚合物。 搅拌器包括轴，螺旋部分和驱动部分。 机械密封在高压釜容器的壁处或邻近高压釜容器的壁处形成围绕轴的压力边界。 机械密封包括用与轴接触的密封水加压的加压水室，并且保持在高压釜容器内的容器压力更大的密封压力。 加压水室中的密封水的钙含量小于3ppm，铁含量小于0.3ppm。

公开(公告)号：EP2991757A1

公开(公告)日：2016-03-09

申请号：EP14724603.7

申请日：2014-04-15

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

Inventor： MONSTER, Leen ,  MOLENDIJK, Leonardus J.

IPC: B01J3/04 ,  C08G69/00 ,  B01J19/02

CPC classification number: B01J3/04 ,  B01J19/02 ,  B01J2219/00081 ,  B01J2219/0009 ,  B01J2219/0236 ,  B01J2219/0286

Abstract: A polymerization autoclave having an exterior heating assembly can include an autoclave vessel body, an autoclave inlet, a pressure release valve, and a heating conduit. The autoclave vessel body defines an interior reaction chamber within which a polymerization reaction can occur. The autoclave vessel body is also of a steel alloy. The heating conduit is wrapped around and attached to a heat transfer portion of the outer surface. The heating conduit has multiple wraps around the autoclave vessel body such that heating fluid can be circulated through the heating conduit to transfer heat into the interior reaction chamber across the heat transfer portion. The heating conduit is formed of a chromium-molybdenum steel alloy. The heating conduit is also attached to the heat transfer portion so as to substantially avoid low cycle fatigue damage from repeated cyclic temperature differentials greater than 80 °C.