METHOD FOR PARALLEL PRODUCTION OF TRANS-1,3,3,3-TETRAFLUOROPROPENE AND 1,1,1,3,3-PENTAFLUOROPROPANE

WIPO Patent Application WO/2013/161692

A1

Disclosed is a method for the parallel production of trans-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane. This method has: a reaction step for reacting 1-chloro-3,3,3-trifluoropropene and HF to obtain a product containing trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene, 1,1,1,3,3-pentafluoropropane, and HCl; a distillation step for distilling the product, recovering 1-chloro-3,3,3-trifluoropropene and HF, and feeding the 1-chloro-3,3,3-trifluoropropene and HF to the reaction step; a hydrogen fluoride separation step for recovering HF from the fraction of the distillation step and feeding the HF to the reaction step; a hydrogen chloride separation step for bringing water or NaOH aqueous solution into contact with the residue of this step and removing the HCl; a drying step for dehydrating the residue of this step; a purification step for purifying the residue of this step; and a conversion step for making cis-1,3,3,3-tetrafluoropropene into 1,1,1,3,3-pentafluoropropane.

SAKYU FUYUHIKO (JP)
YOSHIKAWA SATOSHI (JP)
OKAMOTO SATORU (JP)
NISHIGUCHI YOSHIO (JP)

PCT/JP2013/061591

October 31, 2013

April 19, 2013

Click for automatic bibliography generation  

CENTRAL GLASS CO LTD (JP)

C07C17/20; C07C17/087; C07C19/08; C07C21/18

WO2010035748A1	2010-04-01
WO2012063566A1	2012-05-18
WO2012030781A2	2012-03-08
WO2012148695A2	2012-11-01
WO2012154227A2	2012-11-15

JPH11228461A

1999-08-24

KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)

View/Download PDF      PDF Help

Previous Patent: PLANTING DEVICE

Next Patent: DIAGNOSTIC AGENT AND DIAGNOSTIC METHOD FOR IRRITABLE BOWEL SYNDROME INDUCED BY ABNORMAL PROLIFERATIO...