Compositions containing 1,1-difluoroethane and 3,3,3-trifluoropropene, that can be used in multiple fields of application. The composition may include from 25 to 65 mol % of 1,1-difluoroethane and from 75 to 35 mol % of 3,3,3-trifluoropropene at a temperature of between 25 C. and 25 C. and a pressure of between 1 and 6 bar. The composition may further include hydrogen fluoride. The composition may include from 20 to 55 mol % of HF, 30 to 40 mol % of 1,1-difluoroethane and 30 to 40 mol % of 3,3,3-trifluoropropene.

A non-azeotropic refrigerant mixture attains an extremely low temperature of 200 deg. C. through 150 deg. C. in a refrigerating system equipped with a heat exchanger; a non-azeotropic refrigerant mixture which attains a low temperature of 100 deg. C. or lower is a non-azeotropic refrigerant mixture which comprises a base refrigerant and R-14 wherein R-14 is contained in an amount of 5 wt % through 40 wt %, whereas the base refrigerant consists of butane plus propane and R-23 plus R-116 as the low boiling point refrigerant; also, a non-azeotropic refrigerant mixture that attains 120 deg. C. or lower is a non-azeotropic refrigerant mixture which comprises R-50 plus R-740 as well as a base refrigerant and R-14 wherein the base refrigerant/R-14 ratio is 95/5 through 60/40 and R-50 and R-740 are contained respectively in an amount of 1 wt % through 10 wt.

Provided is a chiller and system that may be utilized in a supercritical fluid chromatography method, wherein a non-polar solvent may replace a portion or all of a polar solvent for the purpose of separating or extracting desired sample molecules from a combined sample/solvent stream. The system may reduce the amount of polar solvent necessary for chromatographic separation and/or extraction of desired samples. The system may incorporate a supercritical fluid chiller, a supercritical fluid pressure-equalizing vessel and a supercritical fluid cyclonic separator. The supercritical fluid chiller allows for efficient and consistent pumping of liquid-phase gases employing off-the-shelf HPLC pumps. The pressure equalizing vessel allows the use of off the shelf HPLC column cartridges. The system may further incorporate the use of one or more disposable cartridges containing silica gel or other suitable medium. The system may also utilize an open loop cooling circuit using fluids with a positive Joule-Thompson coefficient.

The mixed refrigerant composition according to embodiments of the present disclosure includes carbon dioxide (R-744), trifluoroiodomethane (R-13I1), and 1,1-difluoroethane (R-152a), wherein a sum of contents of the trifluoroiodomethane (R-13I1) and the 1,1-difluoroethane (R-152a) based on a total weight of the mixed refrigerant composition may be 60 wt. % or more and less than 100 wt. %. Accordingly, environmental pollution caused by the mixed refrigerant composition may be suppressed, and the cooling performance of the mixed refrigerant composition may be improved.

A working fluid for a heat cycle, contains: trifluoroethylene; and a first component consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane, methane, ethane, propane, helium, neon, argon, krypton, xenon, nitrogen and ammonia.

A refrigeration device includes: a refrigerant circuit in which a compressor, a condenser, a decompressor, and an evaporator are connected circularly in the stated order; and a regenerative refrigerator including a heat dissipation portion that compresses a working fluid enclosed in a chamber and dissipates heat produced by compression, and a heat absorption portion in which the working fluid compressed in the heat dissipation portion is expanded. A refrigerant in the condenser is cooled by heat exchange between the condenser and the heat absorption portion.

Compositions containing 2,3,3,3-tetrafluoropropene and 1,2-difluoroethylene, that can be used in multiple fields of application. The composition can include from 45 to 90 mol % of 2,3,3,3-tetrafluoropropene and from 55 to 10 mol % of, 1,2-difluoroethylene. The composition can include from 55 to 80 mol % of 2,3,3,3-tetrafluoropropene and from 45 to 20 mol % of 1,2-difluoroethylene. The composition can include from 62 to 69 mol % of 2,3,3,3-tetrafluoropropene and from 38 to 31 mol % of 1,2-difluoroethylene at a temperature of between 30 C. and 55 C. and a pressure of between 1 and 15 bar.

Compositions containing 2,3,3,3-tetrafluoropropene and 1,2-difluoroethylene, that can be used in multiple fields of application. The composition can include from 45 to 90 mol % of 2,3,3,3-tetrafluoropropene and from 55 to 10 mol % of, 1,2-difluoroethylene. The composition can include from 55 to 80 mol % of 2,3,3,3-tetrafluoropropene and from 45 to 20 mol % of 1,2-difluoroethylene. The composition can include from 62 to 69 mol % of 2,3,3,3-tetrafluoropropene and from 38 to 31 mol % of 1,2-difluoroethylene at a temperature of between 30 C. and 56 C. and a pressure of between 1 and 15 bar.

Compositions containing 1,1-difluoroethane and 3,3,3-trifluoropropene, that can be used in multiple fields of application. The composition may include from 25 to 65 mol % of 1,1-difluoroethane and from 75 to 35 mol % of 3,3,3-trifluoropropene at a temperature of between 25 C. and 25 C. and a pressure of between 1 and 6 bar. The composition may further include hydrogen fluoride. The composition may include from 20 to 55 mol % of HF, 30 to 40 mol % of 1,1-difluoroethane and 30 to 40 mol % of 3,3,3-trifluoropropene.

A non-azeotropic refrigerant mixture attains an extremely low temperature of 200 deg. C. through 150 deg. C. in a refrigerating system equipped with a heat exchanger;

a non-azeotropic refrigerant mixture which attains a low temperature of 100 deg. C. or lower is a non-azeotropic refrigerant mixture which comprises a base refrigerant and R-14 wherein R-14 is contained in an amount of 5 wt % through 40 wt %, whereas the base refrigerant consists of butane plus propane and R-23 plus R-116 as the low boiling point refrigerant;
also, a non-azeotropic refrigerant mixture that attains 120 deg. C. or lower is a non-azeotropic refrigerant mixture which comprises R-50 plus R-740 as well as a base refrigerant and R-14 wherein the base refrigerant/R-14 ratio is 95/5 through 60/40 and R-50 and R-740 are contained respectively in an amount of 1 wt % through 10 wt.