Patent classifications
C07C17/25
2-CHLORO-3,3,3-TRIFLUOROPROPENE (1233XF) COMPOSITIONS AND METHODS FOR MAKING AND USING THE COMPOSITIONS
A composition including 2-chloro-3,3,3-trifluoropropene (1233xf), one or more of 2,3-dichloro-1,1,1-trifluoropropane (243db), 1,2-dichloro-3,3,3-trifluoropropene (1223xd), 2,3-dichloro-3,3-difluoropropene (1232xf), 2,2,3-trichloro-1,1,1-trifluoro-propane (233ab), 2,3,3-trichloro-1,1,1-trifluoro-propane (233da), 3,3,3-trifluoropropyne, 1-chloro-3,3,3-trifluoropropyne, 3,3,3-trifluoro-1-propene (1243zf), 1-chloro-3,3,3-trifluoro-1-propene (1233zd), 1-chloro-2,3,3,3-tetrafluoro-1-propene (1224yd), or 2-bromo-3,3,3-trifluoropropene and optionally 1233xf oligomers are disclosed.
2-CHLORO-3,3,3-TRIFLUOROPROPENE (1233XF) COMPOSITIONS AND METHODS FOR MAKING AND USING THE COMPOSITIONS
A composition including 2-chloro-3,3,3-trifluoropropene (1233xf), one or more of 2,3-dichloro-1,1,1-trifluoropropane (243db), 1,2-dichloro-3,3,3-trifluoropropene (1223xd), 2,3-dichloro-3,3-difluoropropene (1232xf), 2,2,3-trichloro-1,1,1-trifluoro-propane (233ab), 2,3,3-trichloro-1,1,1-trifluoro-propane (233da), 3,3,3-trifluoropropyne, 1-chloro-3,3,3-trifluoropropyne, 3,3,3-trifluoro-1-propene (1243zf), 1-chloro-3,3,3-trifluoro-1-propene (1233zd), 1-chloro-2,3,3,3-tetrafluoro-1-propene (1224yd), or 2-bromo-3,3,3-trifluoropropene and optionally 1233xf oligomers are disclosed.
E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene
A production process for the production of E-1-chloro-3,3,3-trifluoropropene, the process including at least one stage during which 1,3,3,3-tetrachloropropene reacts with anhydrous hydrofluoric acid in the liquid phase, in the absence of a catalyst, with an HF/1,1,3,3-tetrachloropropene molar ratio between 3 and 20 inclusive, at a temperature between 50° C. and 150° C. inclusive and an absolute pressure of between 1 and 20 bar inclusive.
E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene
A production process for the production of E-1-chloro-3,3,3-trifluoropropene, the process including at least one stage during which 1,3,3,3-tetrachloropropene reacts with anhydrous hydrofluoric acid in the liquid phase, in the absence of a catalyst, with an HF/1,1,3,3-tetrachloropropene molar ratio between 3 and 20 inclusive, at a temperature between 50° C. and 150° C. inclusive and an absolute pressure of between 1 and 20 bar inclusive.
PROCESS FOR THE PREPARATION OF 1,3,3,3-TETRAFLUOROPROPENE
Disclosed is a process for the preparation of 1,3,3,3-tetrafluoropropene, comprising: (a) a compound having the formula CF.sub.3-xCl.sub.xCHClCHF.sub.2-yCl.sub.y and in the presence of a compound catalyst, undergoes, through n serially-connected reactors, gas-phase fluorination with hydrogen fluoride, producing 1,2,3-trichloro-1,1,3-trifluoropropane, and 1,2-dichloro-1,1,3,3-tetrafluoropropane; in said formula, x=1, 2 or 3; y=1 or 2, and 3≦x+y≦5; (b) 1,2,3-trichloro-1,1,3-trifluoropropane, and 1,2-dichloro-1,1,3,3-tetrafluoropropane undergo, in the presence of a dehalogenation catalyst, gas-phase dehalogenation with hydrogen, producing 3-chloro-1,3,3-trifluoropropene, and 1,1,3,3-tetrafluoropropene; (c) 3-chloro-1,3,3-trifluoropropene and 1,1,3,3-tetrafluoropropene undergo, in the presence of a fluorination catalyst, gas-phase fluorination with hydrogen fluoride, producing 1,3,3,3-tetrafluoropropene. The present invention is primarily used to produce 1,3,3,3-tetrafluoropropene.
Method for purifying 1,1,1,2,3-pentafluoropropane and use thereof for obtaining high-purity 2,3,3,3-tetrafluoropropene
The present invention relates to a process for purifying 1,1,1,2,3-pentafluoropropane, comprising the steps of: i) providing a composition A1 comprising 1,1,1,2,3-pentafluoropropane and 1,1,1,3-tetrafluoropropane; ii) purifying, preferably distilling, said composition A1 under conditions that are sufficient to form at least two streams including a first stream comprising 1,1,1,2,3-pentafluoropropane and a second stream comprising 1,1,1,3-tetrafluoropropane. The present invention also relates to a process for producing 2,3,3,3-tetrafluoropropene and a composition comprising 2,3,3,3-tetrafluoropropene.
Method for purifying 1,1,1,2,3-pentafluoropropane and use thereof for obtaining high-purity 2,3,3,3-tetrafluoropropene
The present invention relates to a process for purifying 1,1,1,2,3-pentafluoropropane, comprising the steps of: i) providing a composition A1 comprising 1,1,1,2,3-pentafluoropropane and 1,1,1,3-tetrafluoropropane; ii) purifying, preferably distilling, said composition A1 under conditions that are sufficient to form at least two streams including a first stream comprising 1,1,1,2,3-pentafluoropropane and a second stream comprising 1,1,1,3-tetrafluoropropane. The present invention also relates to a process for producing 2,3,3,3-tetrafluoropropene and a composition comprising 2,3,3,3-tetrafluoropropene.
Method for purifying 1,1,1,2,3-pentafluoropropane and use thereof for obtaining high-purity 2,3,3,3-tetrafluoropropene
The present invention relates to a process for purifying 1,1,1,2,3-pentafluoropropane, comprising the steps of: i) providing a composition A1 comprising 1,1,1,2,3-pentafluoropropane and 1,1,1,3-tetrafluoropropane; ii) purifying, preferably distilling, said composition A1 under conditions that are sufficient to form at least two streams including a first stream comprising 1,1,1,2,3-pentafluoropropane and a second stream comprising 1,1,1,3-tetrafluoropropane. The present invention also relates to a process for producing 2,3,3,3-tetrafluoropropene and a composition comprising 2,3,3,3-tetrafluoropropene.
COMPOSITIONS COMPRISING 2,3,3,3-TETRAFLUOROPROPENE, 1,1,2,3 TETRACHLOROPROPENE, 2-CHLORO-3,3,3-TRIFLUOROPROPENE, OR 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE
The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.
COMPOSITIONS COMPRISING 2,3,3,3-TETRAFLUOROPROPENE, 1,1,2,3 TETRACHLOROPROPENE, 2-CHLORO-3,3,3-TRIFLUOROPROPENE, OR 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE
The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.