公开(公告)号：WO2014179060A1

公开(公告)日：2014-11-06

申请号：PCT/US2014/034212

申请日：2014-04-15

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： WELCH, Robert, J. ,  MONSTER, Leen ,  NOMIKOS, Paul ,  VONK, Cornelis, M.

IPC: C07C51/41 ,  C07C55/14 ,  C07C55/02 ,  C07C209/68 ,  C07C211/09 ,  C07C211/12 ,  C08G69/28

CPC classification number: B01J8/0045 ,  B01J8/002 ,  B01J19/006 ,  B01J19/0066 ,  B01J19/1881 ,  B01J2208/0061 ,  B01J2208/00619 ,  B01J2208/00752 ,  B01J2208/00787 ,  B01J2219/00083 ,  B01J2219/00094 ,  B01J2219/0011 ,  B01J2219/00114 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00166 ,  B01J2219/00177 ,  B01J2219/00186 ,  B01J2219/00202 ,  B01J2219/00211 ,  B01J2219/00231 ,  C07C51/412 ,  C07C209/68 ,  C08G69/28 ,  C07C55/02 ,  C07C55/14 ,  C07C211/12

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. At least a portion of the nylon salt solution is sent to a reactor recirculation loop, where the pH and/or salt content are measured. Output signals from the pH and or salt content measurement devices are used to adjust at least one of the feed rates. The nylon salt solution has low variability from a target pH and/or a target salt solution concentration.

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。 将至少一部分尼龙盐溶液送至反应器再循环回路，其中测量pH和/或盐含量。 来自pH和/或盐含量测量装置的输出信号用于调节至少一个进料速率。 尼龙盐溶液与目标pH和/或目标盐溶液浓度的变异性低。

公开(公告)号：WO2014179047A1

公开(公告)日：2014-11-06

申请号：PCT/US2014/034152

申请日：2014-04-15

Applicant: INVISTA NORTH AMERICA S.à r.l. ,  INVISTA TECHNOLOGIES S.à r.l.

Inventor： MONSTER, Leen ,  VONK, Cornelis, M.

IPC: C08F2/01 ,  F17C13/02

CPC classification number: C08F2/01

Abstract: Processes and systems for detection of a nitrogen blow event during a polymer production process, such as a nylon 6,6 polymer production process, are disclosed and described. Processes and systems for arresting a nitrogen blow event during a polymer production process, such as nylon 6,6 polymer production processes, are also disclosed and described.

Abstract translation: 公开和描述了在聚合物生产过程中检测氮吹事件的方法和系统，例如尼龙6,6聚合物生产方法。 还公开和描述了在聚合物生产过程（例如尼龙6,6聚合物生产方法）期间阻止氮气吹送事件的方法和系统。