A hydrohaloolefin composition includes a hydrohaloolefin as a main component, further includes 1,1,2,3-tetrafluorobutane, in which a content of the 1,1,2,3-tetrafluorobutane is 0.001 to 0.1% by mass with respect to a total amount of organic compounds.

Disclosed are azeotropic or azeotrope-like compositions containing Z-1,1,1,4,4,4-hexafluoro-2-butene and methyl perfluoropropyl ether. Also disclosed is process of using the azeotropic or azeotrope-like composition as blowing agents for preparing a thermoplastic or thermoset foam. Also disclosed is a process of using the azeotropic or azeotrope-like composition as a refrigerant for producing cooling or heating. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of using the azeotropic or azeotrope-like composition as propellants for producing an aerosol. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.

Disclosed are azeotropic or azeotrope-like compositions containing Z-1,1,1,4,4,4-hexafluoro-2-butene and methyl perfluoropropyl ether. Also disclosed is process of using the azeotropic or azeotrope-like composition as blowing agents for preparing a thermoplastic or thermoset foam. Also disclosed is a process of using the azeotropic or azeotrope-like composition as a refrigerant for producing cooling or heating. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of using the azeotropic or azeotrope-like composition as propellants for producing an aerosol. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.

The present invention relates to a method for re-establishing an electrical apparatus of medium or high voltage. The method includes providing an electrical apparatus designed for using an insulation medium containing SF6, removing SF6 from an insulation space contained in the apparatus and filling an alternative insulation medium into the insulation space,
wherein the alternative insulation medium is a mixture of at least one organofluorine compound A and a carrier gas containing nitrogen.

The present disclosure provides a novel azeotropic or azeotrope-like composition comprising hydrogen fluoride and 1,1,2-trifluoroethane (HFC-143), 1-chloro-2,2-difluoroethane (HCFC-142), or 1,2-dichloro-1-fluoroethane (HCFC-141); and a separation method using the composition. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HFC-143. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HCFC-142. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HCFC-141. A separation method of a composition comprising hydrogen fluoride and at least one member selected from the group consisting of HFC-143, HCFC-142, and HCFC-141.

The present disclosure provides a novel azeotropic or azeotrope-like composition comprising hydrogen fluoride and 1,1,2-trifluoroethane (HFC-143), 1-chloro-2,2-difluoroethane (HCFC-142), or 1,2-dichloro-1-fluoroethane (HCFC-141); and a separation method using the composition. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HFC-143. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HCFC-142. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HCFC-141. A separation method of a composition comprising hydrogen fluoride and at least one member selected from the group consisting of HFC-143, HCFC-142, and HCFC-141.

The present invention relates to the use of a linear octafluorobutene as a dielectric compound in an environmentally safe dielectric-insulation or arc-extinction fluid for an apparatus for the generation, the transmission, the distribution and/or the usage of electrical energy.

The present invention relates to the use of a linear octafluorobutene as a dielectric compound in an environmentally safe dielectric-insulation or arc-extinction fluid for an apparatus for the generation, the transmission, the distribution and/or the usage of electrical energy.

A method and device for purifying heptafluoroisobutyronitrile and a dilution gas from a used gas mixture comprising heptafluoroisobutyronitrile, a dilution gas and arcing by-products. The method comprising the steps of (a) contacting the used gas mixture with at least one adsorbent material to generate a gas stream depleted in arcing by-products; (b) contacting the gas stream depleted in by-products with a first membrane to obtain a first permeate stream rich in the dilution gas, and a first retentate stream rich in heptafluoroisobutyronitrile; (c) contacting the first permeate stream rich in the dilution gas with a second membrane to obtain a second permeate stream rich in the dilution gas and a second retentate stream rich in heptafluoroisobutyronitrile; and (d) combining the first and second retentate streams rich in heptafluoroisobutyronitrile.

Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one to additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, is HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF=CHCl, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.