The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a composition comprising at least one HFO compound selected from the group consisting of HFO-1234yf, (E-/Z-)HFO-1234ze, and (E-/Z-)HFO-1225ye; and a chlorine-containing compound, wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH.sub.2CHCl, CHFCHCl, CH.sub.2CFCl, CF.sub.3Cl, CH.sub.3Cl, CF.sub.3CH.sub.2Cl, CClFCHCl, and CHFCCl.sub.2, and (2) the chlorine-containing compound is contained in an amount ranging from 1 to 500000 mass ppm.

There are provided a solvent composition containing tDCE, which does not exert an adverse effect on the global environment, has high solubility and incombustibility, and can maintain initial incombustibility even in use accompanied by a phase change, a cleaning method using the solvent composition, a coating film-forming composition including the solvent composition, and a method of forming a homogeneous coating film using the coating film-forming composition. A solvent composition includes: tDCE; at least one HFE (A) selected from HFE-347pc-f, HFE-365mf-c, and HFE-467sc-f; and at least one HFC (X) selected from cHFC-447, and HFC-76-13sf, in which a ratio of tDCE with respect to a total amount of tDCE, HFE (A), and HFC (X) is 65 to 80 mass %, a ratio of HFE (A) with respect to the total amount is 5 to 25 mass %, and a ratio of HFC (X) with respect to the total amount is 5 to 25 mass %.

There are provided a solvent composition containing tDCE, which does not exert an adverse effect on the global environment, has high solubility and incombustibility, and can maintain initial incombustibility even in use accompanied by a phase change, a cleaning method using the solvent composition, a coating film-forming composition including the solvent composition, and a method of forming a homogeneous coating film using the coating film-forming composition. A solvent composition includes: tDCE; at least one HFE (A) selected from HFE-347pc-f, HFE-365mf-c, and HFE-467sc-f; and at least one HFC (X) selected from cHFC-447, and HFC-76-13sf, in which a ratio of tDCE with respect to a total amount of tDCE, HFE (A), and HFC (X) is 65 to 80 mass %, a ratio of HFE (A) with respect to the total amount is 5 to 25 mass %, and a ratio of HFC (X) with respect to the total amount is 5 to 25 mass %.

The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a composition comprising at least one HFO compound selected from the group consisting of HFO-1234yf, (E-/Z-)HFO-1234ze, and (E-/Z-)HFO-1225ye; and a chlorine-containing compound, wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH.sub.2CHCl, CHFCHCl, CH.sub.2CFCl, CF.sub.3Cl, CH.sub.3Cl, CF.sub.3CH.sub.2Cl, CClFCHCl, and CHFCCl.sub.2, and (2) the chlorine-containing compound is contained in an amount ranging from 1 to 500000 mass ppm.

The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a composition comprising at least one HFO compound selected from the group consisting of HFO-1234yf, (E-/Z-)HFO-1234ze, and (E-/Z-)HFO-1225ye; and a chlorine-containing compound, wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH.sub.2CHCl, CHFCHCl, CH.sub.2CFCl, CF.sub.3Cl, CH.sub.3Cl, CF.sub.3CH.sub.2Cl, CClFCHCl, and CHFCCl.sub.2, and (2) the chlorine-containing compound is contained in an amount ranging from 1 to 500000 mass ppm.

The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a composition comprising at least one HFO compound selected from the group consisting of HFO-1234yf, (E-/Z-)HFO-1234ze, and (E-/Z-)HFO-1225ye; and a chlorine-containing compound, wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH.sub.2CHCl, CHFCHCl, CH.sub.2CFCl, CF.sub.3Cl, CH.sub.3Cl, CF.sub.3CH.sub.2Cl, CClFCHCl, and CHFCCl.sub.2, and (2) the chlorine-containing compound is contained in an amount ranging from 1 to 500000 mass ppm.

The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a composition comprising at least one HFO compound selected from the group consisting of HFO-1234yf, (E-/Z-)HFO-1234ze, and (E-/Z-)HFO-1225ye; and a chlorine-containing compound, wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH.sub.2CHCl, CHFCHCl, CH.sub.2CFCl, CF.sub.3Cl, CH.sub.3Cl, CF.sub.3CH.sub.2Cl, CClFCHCl, and CHFCCl.sub.2, and (2) the chlorine-containing compound is contained in an amount ranging from 1 to 500000 mass ppm.

The present disclosure provides compounds, compositions, and methods for preparing alkenyl halides and/or haloalkyl-substituted olefins with Z-selectivity. The methods are particularly useful for preparing alkenyl fluorides such as CF.sub.3-substituted olefins by means of cross-metathesis reactions using halogen-containing molybdenum and tungsten complexes.

The present disclosure provides compounds, compositions, and methods for preparing alkenyl halides and/or haloalkyl-substituted olefins with Z-selectivity. The methods are particularly useful for preparing alkenyl fluorides such as CF.sub.3-substituted olefins by means of cross-metathesis reactions using halogen-containing molybdenum and tungsten complexes.

Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF.sub.3CFCH.sub.2 (1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCl.sub.2CClCH.sub.2Cl (which may be purchased or synthesized from 1,2,3-trichloropropane) is fluorinated (preferably with HF in gas-phase in the presence of a catalyst) to synthesize a compound such as CF.sub.3CClCH.sub.2, preferably in a 80-96% selectivity. The CF.sub.3CClCH.sub.2 is preferably converted to CF.sub.3CFClCH.sub.3 (244-isomer) using a SbCl.sub.5 as the catalyst which is then transformed selectively to 1234yf, preferably in a gas-phase catalytic reaction using activated carbon as the catalyst. For the first step, a mixture of Cr.sub.2O.sub.3 and FeCl.sub.3/C is preferably used as the catalyst to achieve high selectivity to CF.sub.3CClCH.sub.2 (96%). In the second step, SbCl.sub.5/C is preferably used as the selective catalyst for transforming 1233xf to 244-isomer, CF.sub.3CFClCH.sub.3. The intermediates are preferably isolated and purified by distillation and used in the next step without further purification, preferably to a purity level of greater than about 95%.