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1. CN101128410 - Method for recovery of fluorinated alcohol

Office China
Application Number 200680006192.0
Application Date 27.02.2006
Publication Number 101128410
Publication Date 20.02.2008
Grant Number 101128410
Grant Date 06.04.2011
Publication Kind B
IPC
C07C 29/94
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
94Use of additives, e.g. for stabilisation
C07C 29/80
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
76by physical treatment
80by distillation
C07C 31/38
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
31Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
34Halogenated alcohols
38containing only fluorine as halogen
CPC
C07C 29/86
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
76by physical treatment
86by liquid-liquid treatment
Applicants Asahi Glass Co., Ltd.
旭硝子株式会社
Inventors Aida Shigeru
相田茂
Ogawa Akio
小川章夫
Hikima Satoshi
引間聡
Agents shayong sheng
上海专利商标事务所有限公司 31100
Priority Data 053596/2005 28.02.2005 JP
Title
(EN) Method for recovery of fluorinated alcohol
(ZH) 含氟醇的回收方法
Abstract
(EN)
A method for recovering a fluorinated alcohol comprising the step of adding an inorganic salt to a mixed solution comprising the fluorinated alcohol and water to cause two-phase separation. This method can recover a fluorinated alcohol by separating water from a mixed solution of the fluorinated alcohol and water which is produced during a CD-R or DVD-R production process.

(ZH)

本发明提供从CD-R和DVD-R的制造所产生的含有含氟醇和水的混合液将水分离,简便地回收含氟醇的方法。所述含氟醇的回收方法的特征在于,具有在含有含氟醇和水的混合液中添加无机盐而使其分离成2层的工序。

Also published as
EP6714777