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1. WO2011072569 - METHOD AND DEVICE FOR PREPARING ETHYL T-BUTYL ETHER BY DISTILLATION-EXTRACTION COUPLING SEPARATION AND PURIFICATION

Publication Number WO/2011/072569
Publication Date 23.06.2011
International Application No. PCT/CN2010/079182
International Filing Date 26.11.2010
IPC
C07C 41/42 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
41Preparation of ethers; Preparation of compounds having groups, groups or groups
01Preparation of ethers
34Separation; Purification; Stabilisation; Use of additives
40by change of physical state, e.g. by crystallisation
42by distillation
C07C 43/04 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
43Ethers; Compounds having groups, groups or groups
02Ethers
03having all ether-oxygen atoms bound to acyclic carbon atoms
04Saturated ethers
B01D 11/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
04of solutions which are liquid
CPC
C07C 41/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
41Preparation of ethers; Preparation of compounds having groups, groups or groups
01Preparation of ethers
34Separation; Purification; Stabilisation; Use of additives
40by change of physical state, e.g. by crystallisation
42by distillation
Applicants
  • 华东理工大学 EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY [CN]/[CN] (AllExceptUS)
  • 张武平 ZHANG, Wuping [CN]/[CN] (UsOnly)
  • 张文里 ZHANG, Wenli [CN]/[CN] (UsOnly)
  • 周山花 ZHOU, Shanhua [CN]/[CN] (UsOnly)
  • 田恒水 TIAN, Hengshui [CN]/[CN] (UsOnly)
  • 张涵璐 ZHANG, Hanlu [CN]/[CN] (UsOnly)
  • 诸富根 ZHU, Fugeng [CN]/[CN] (UsOnly)
  • 江兆 JIANG, Zhao [CN]/[CN] (UsOnly)
  • 顾京君 GU, Jingjun [CN]/[CN] (UsOnly)
Inventors
  • 张武平 ZHANG, Wuping
  • 张文里 ZHANG, Wenli
  • 周山花 ZHOU, Shanhua
  • 田恒水 TIAN, Hengshui
  • 张涵璐 ZHANG, Hanlu
  • 诸富根 ZHU, Fugeng
  • 江兆 JIANG, Zhao
  • 顾京君 GU, Jingjun
Agents
  • 上海三和万国知识产权代理事务所 SANHE INTERNATIONAL IP ATTORNEYS
Priority Data
200910201217.816.12.2009CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND DEVICE FOR PREPARING ETHYL T-BUTYL ETHER BY DISTILLATION-EXTRACTION COUPLING SEPARATION AND PURIFICATION
(FR) PROCÉDÉ ET DISPOSITIF DE PRÉPARATION PAR SÉPARATION ET PURIFICATION D'UN ÉTHYL TERTIO-BUTYL ÉTHER COMBINANT LA DISTILLATION ET L'EXTRACTION
(ZH) 一种蒸馏-萃取耦合分离纯化制备乙基叔烷基醚的方法及装置
Abstract
(EN)
Disclosed are a method and a device for preparing ethyl t-butyl ether by distillation-extraction coupling separation and purification, wherein the material is to-be-separated mixture of ethyl t-butyl ether which is obtained by carrying out etherification of ethanol with water content from at least more than 1 wt. % to at most 15 wt. % and isoolefin having at least 4 carbon atoms, and the method described is the distillation-extraction coupling separation. The present method improves utilization rate of isoolefin, reduces the circulation of tertiary alcohol and the cost, not only obtains the qualified ethyl t-butyl ether, but also co-produces the corresponding monohydric alcohol.
(FR)
L'invention concerne un procédé et un dispositif de préparation par séparation et purification d'un éthyl tertio-butyl éther combinant la distillation et l'extraction, procédé selon lequel la matière première est un mélange à séparer d'un éthyl tertio-butyl éther obtenu par éthérification d'un éthyle contenant entre 1 % en poids et 15 % en poids d'eau et d'une iso-oléfine ayant au moins quatre atomes de carbone, un tel procédé combinant la distillation et l'extraction. Selon ce procédé, on améliore l'efficacité de l'iso-oléfine, on réduit la circulation d'alcool tertiaire, on diminue les coûts, tout en assurant la production de produits conformes à base d'éthyl tertio-butyl éther et d'alcool monohydrique correspondant.
(ZH)
提供一种蒸熘一萃取耦合分离纯化制备乙基叔烷基醚的方法及装置,其中原料是由含水量至少大于1重量%但至多15重量%的乙醇与具有至少四个碳原子的异烯烃进行醚化反应制得的乙基叔烷基醚的待分离混合物,所述方法是蒸熘一萃取耦合分离法。所述方法提高了异烯烃的利用率,减少了叔醇的循环量,降低了成本,不仅可以得到合格的乙基叔烷基醚产品,而且可以联产相应的一元醇。
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