The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2018
Filed:
Dec. 22, 2014
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Shahekou Dalian, CN;
Youming Ni, Shahekou Dalian, CN;
Wenliang Zhu, Shahekou Dalian, CN;
Hongchao Liu, Shahekou Dalian, CN;
Yong Liu, Shahekou Dalian, CN;
Zhongmin Liu, Shahekou Dalian, CN;
Lina Li, Shahekou Dalian, CN;
Shiping Liu, Shahekou Dalian, CN;
Hui Zhou, Shahekou Dalian, CN;
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Shahekou Dalian, CN;
Abstract
Disclosed is a method for preparing a double end capped glycol ether, the method comprising: introducing into a reactor a raw material comprising a glycol monoether and a monohydric alcohol ether, and enabling the raw material to contact and react with an acidic molecular sieve catalyst to generate a double end capped glycol ether, a reaction temperature being 50-300° C., a reaction pressure being 0.1-15 MPa, a WHSV of the glycol monoether in the raw material being 0.01-15.0 h, and a mole ratio of the monohydric alcohol ether to the glycol monoether in the raw material being 1-100:1. The method of the present invention enables a long single-pass lifespan of the catalyst and repeated regeneration, has a high yield and selectivity of a target product, low energy consumption during separation of the product, a high economic value of a by-product, and is flexible in production scale and application.