Catalytic fluorination of 1,1,1-trifluoro-2-chloro-ethane in the presence of oxygen over chromium based catalyst doped or not by zinc supported over partially fluorinated alumina

被引：3

作者：

Loustaunau, A. ^{[1
]}

Fayolle-Romelaer, R. ^{[1
]}

Celerier, S. ^{[1
]}

Brunet, S. ^{[1
]}

机构：

[1] Univ Poitiers, Fac Sci Fondamentales & Appl, Lab Catalyse Chim Organ, CNRS,UMR 6503, F-86022 Poitiers, France

来源：

JOURNAL OF FLUORINE CHEMISTRY | 2011年 / 132卷 / 12期

关键词：

Fluorination; Chromium oxide; Zinc; 1,1,1-Trifluoro-2-chloro-ethane; Deacon; GAS-PHASE FLUORINATION; HYDROGEN-FLUORIDE; BEHAVIOR; OXIDE;

D O I：

10.1016/j.jfluchem.2011.08.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The addition of zinc in low amount to chromium based catalyst supported over partially fluorinated alumina has a positive effect for the fluorination reaction of CF(3)CH(2)Cl in the presence of dioxygen in order to prevent the catalyst deactivation. However, under these operating conditions, the Deacon reaction by reaction with HCl produced by Cl/F exchanges could be involved. The formation of various by-products was observed corresponding to the addition of HCl or Cl(2) into halogenated double bonds. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1262 / 1265

页数：4

共 21 条

[1] PREPARATION OF SUBSTITUTES FOR CFCS - CATALYTIC PROPERTIES OF CHROMIA FOR HALOGEN EXCHANGE INVOLVING HYDROGEN-FLUORIDE AND TRIFLUOROCHLOROETHANE [J].

BARRAULT, J ;

BRUNET, S ;

REQUIEME, B ;

BLANCHARD, M .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1993, (04) :374-375

[2]

BONNET P, 1997, Patent No. 2771027

[3] Halogen exchange reactions for CFC alternatives. The behaviour of fluorine-18 labelled hydrogen fluoride towards prefluorinated chromia containing nickel( II) or zinc( II) [J].

Bonniface, DW ;

Fryer, JR ;

Landon, P ;

Scott, JD ;

Scott, WDS ;

Watson, MJ ;

Webb, G ;

Winfield, JM .

GREEN CHEMISTRY, 1999, 1 (01) :9-11

[4]

BONNIFACE DW, 1997, Patent No. 5672786

[5] Dynamic behaviour of chlorofluoroethanes at fluorinated chromia aerogels and fluorinated zinc(II) or magnesium(II) doped chromia aerogels [J].

Bozorgzadeh, H ;

Kemnitz, E ;

Nickkho-Amiry, M ;

Skapin, T ;

Winfield, JM .

JOURNAL OF FLUORINE CHEMISTRY, 2003, 121 (01) :83-92

[6] CHARACTERIZATION BY TEMPERATURE-PROGRAMMED REDUCTION AND BY TEMPERATURE-PROGRAMMED OXIDATION (TPR-TPO) OF CHROMIUM(III) OXIDE-BASED CATALYSTS - CORRELATION WITH THE CATALYTIC ACTIVITY FOR HYDROFLUOROALKANE SYNTHESIS [J].

BRUNET, S ;

REQUIEME, B ;

MATOUBA, E ;

BARRAULT, J ;

BLANCHARD, M .

JOURNAL OF CATALYSIS, 1995, 152 (01) :70-74

[7] CATALYTIC GAS-PHASE FLUORINATION OF 1,1,1-TRIFLUORO-2 CHLOROETHANE OVER CHROMIUM(III) OXIDE - PREPARATION OF HYDROFLUOROALKANES [J].

BRUNET, S ;

REQUIEME, B ;

COLNAY, E ;

BARRAULT, J ;

BLANCHARD, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1995, 5 (04) :305-317

[8] Properties of chromium (III) oxides involved in the catalytic gas phase fluorination of CF3CH2Cl [J].

Brunet, S ;

Boussand, B ;

Martin, D .

JOURNAL OF CATALYSIS, 1997, 171 (01) :287-292

[9]

BRUNET S, 1998, APPL CATAL A-GEN, P168

[10]

Cheminal Bernard, 1992, Process for the preparation of 1,1,1,2-tetrafluoroethane, Patent No. [EP 486333 A1-19920520, 486333]

← 1 2 3 →