公开(公告)号：US20140213829A1

公开(公告)日：2014-07-31

申请号：US14164795

申请日：2014-01-27

Applicant: Xiamen Ju Sheng Mechanical Engineering Co., Ltd.

Inventor： I-Min TSAI ,  Kun LI ,  Yanzhen HUANG ,  Xiaobin WANG ,  Kechang LI ,  Weiming WU

IPC: C07C41/03

CPC classification number: C07C41/03 ,  C07C43/11

Abstract: A method for producing methoxypolyethylene glycols includes the following steps: (1) after the reactor is washed by water, nitrogen is filled in the reactor to elevate the pressure and then the reactor is vacuumized to completely remove water and reduce the oxygen content in the reactor; (2) nitrogen is filled in the rector and pressure is elevated, and then methanol and sodium methoxide as the catalyst in methanol is added into the reactor, and then warming up; (3) ethylene oxide is added into the reactor at 800˜1200 kg/h to process the pre-reaction; (4) ethylene oxide is added into the reactor at 8000˜12000 kg/h to process the reaction after methanol and ethylene oxide in the reactor are completely reacted; (5) the pressure of reaction product is reduced and pH of reaction product is adjusted to 5˜7 after the reaction is finished, and then the reaction product is transferred to the tank yard.

Abstract translation: 生产甲氧基聚乙二醇的方法包括以下步骤：（1）反应器用水洗涤后，将氮气填充到反应器中以升高压力，然后将反应器抽真空以完全除去水并降低反应器中的氧含量 ; （2）将氮气填充在反应器中，压力升高，然后将甲醇和甲醇钠作为甲醇中的催化剂加入到反应器中，然后加热; （3）以800〜1200kg / h的速度将环氧乙烷加入到反应器中以处理预反应; （4）在反应器中甲醇和环氧乙烷完全反应后，以8000〜12000kg / h的速度将环氧乙烷加入到反应器中以处理反应; （5）反应完成后，反应产物的压力降低，反应产物的pH值调至5〜7，然后将反应产物转移到罐场。

公开(公告)号：US20140212342A1

公开(公告)日：2014-07-31

申请号：US14164866

申请日：2014-01-27

Applicant: XIAMEN JU SHENG MECHANICAL ENGINEERING CO., LTD.

Inventor： I-Min TSAI ,  Kun LI ,  Xiaobin WANG ,  Yanzhen HUANG ,  Kechang LI ,  Weiming WU

IPC: B01J19/18

CPC classification number: B01J19/18 ,  B01J8/1836 ,  B01J8/20 ,  B01J8/382 ,  B01J8/386 ,  B01J8/388 ,  B01J2208/00203 ,  B01J2208/00256 ,  B01J2208/003 ,  B01J2208/00548

Abstract: A device for producing ethoxylation derivatives includes an assistant circulation loop with lower starting quantity is added on the base of the main circulation loop, and the assistant circulation pump is started first when slight chain initial dose is added with low flow rate of the ethylene oxide and high growth rate of polyreation; when the amount of reactant gets to the starting quantity of the main circulation pump, the main circulation loop is started with high flow rate of ethylene oxide. The two circulation loops cooperate with each other shorten reaction time and high yield in one batch; a pre-reaction cavity with smaller inner diameter than that of the main body of the reactor is extended from the bottom of the main body of the device, so that lower chain initial dose can start the assistant circulation pump, and then start the assistant circulation loop.

Abstract translation: 用于制备乙氧基化衍生物的装置包括在主循环回路的基底上加入起始量较低的辅助循环回路，并且当轻度链初始剂量加入低环氧乙烷的流速时，首先启动助循环泵， 多重增长率高; 当反应物的量达到主循环泵的起始量时，主循环回路以高的环氧乙烷流速开始。 两个循环回路相互配合，使反应时间缩短，一批成品率高; 反应器内径小于反应器主体内径的预反应空腔从设备主体的底部延伸出来，从而下链初始剂量可启动辅助循环泵，然后启动辅助循环 循环。