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1. 发明公开

KR20100113462A Device and method for recovering nmp from waste liquid 有权
标题翻译：从废液中回收NMP的装置和方法
公开(公告)号：KR20100113462A
公开(公告)日：2010-10-21
申请号：KR20100033979
申请日：2010-04-13
申请人： KEY ENGINEERING
发明人： SEO JUNG , CHOI HA CHUN , JEONG WOO SEONG
IPC分类号： B01D11/04 , B01D5/00 , C02F1/04 , C02F103/34
CPC分类号： B01D5/0051 , B01D5/0045 , B01D5/0075
摘要： PURPOSE: A device and a method for recovering NMP from waste liquid are provided to simplify the processes thereof and easily operate the device by operating the opening and closing of each valve step by step. CONSTITUTION: A device for recovering NMP from waste liquid comprises a heat exchanger(61), a first evaporator(30), an NMP concentration unit and a collection unit. The heat exchanger pre-heats NMP waste liquid through a first connection pipeline, and the first evaporator evaporates the steam from the pre-heated waste liquid and discharges the stream. The NMP concentration unit receives the waste liquid which is not evaporated in the first evaporator, circulates the stream through the first evaporator, and concentrates the waste liquid until the NMP reaches the predetermined concentration. The collection unit collects the NMP from the stream discharged from the NMP concentration unit.
摘要翻译：目的：提供一种用于从废液中回收NMP的装置和方法，以简化其处理并通过逐步打开和关闭每个阀来容易地操作装置。构成：用于从废液中回收NMP的装置包括热交换器（61），第一蒸发器（30），NMP浓缩单元和收集单元。热交换器通过第一连接管线预先加热NMP废液，第一蒸发器蒸发来自预热废液的蒸汽并排出流。 NMP浓度单元接收在第一蒸发器中不蒸发的废液，使流经第一蒸发器循环，并将废液浓缩至NMP达到预定浓度。收集单元从从NMP浓缩单元排出的流中收集NMP。

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