Abstract: The production method according to the present disclosure comprises obtaining a product containing the fluoroethane from a fluoroethylene by a reaction in the presence of catalysts. Each catalyst is formed by supporting a noble metal on a carrier. A reactor for performing the reaction is filled with a catalyst having a noble metal concentration of C1 mass % based on the entire catalyst and a catalyst having a noble metal concentration of C2 mass % based on the entire catalyst to form an upstream portion and a downstream portion, respectively; and C1<C2. The reaction is performed by bringing the fluoroethylene represented by formula (3) and hydrogen gas into contact with the upstream portion and the downstream portion in this order.

Abstract: The production method according to the present disclosure comprises obtaining a product comprising a fluoroethane from a fluoroethylene by a reaction in the presence of at least one catalyst. The reaction is performed in two or more reaction zones. Each reaction zone comprises a catalyst, and the fluoroethylene is supplied to each reaction zone to perform the reaction.

Abstract: Provided is a method for producing HCFC and/or HFC by subjecting a halogenated hydrocarbon and anhydrous hydrogen fluoride to a fluorination reaction in the presence of a catalyst, whereby efficient production can be achieved, without the need to stop the production every time catalytic activity is regenerated or recovered, and without making facilities excessive. Provided as a solution therefor is a method comprising (A) subjecting a halogenated hydrocarbon and anhydrous hydrogen fluoride to a fluorination reaction in at least two reactors each in the presence of a catalyst to thereby obtain HCFC and/or HFC; and (B) while halting the reaction in at least one of the reactors, obtaining HCFC and/or HFC by the reaction in at least one other reactor.

Abstract: A watch part containing a titanium alloy, the titanium alloy, in mass %, includes: Al: 1.0 to 3.5%; Fe: 0.1 to 0.4%; O: 0.00 to 0.15%; C: 0.00 to 0.10%; Sn: 0.00 to 0.20%; Si: 0.00 to 0.15%; and the balance: Ti and impurities, an average grain diameter of ? phase crystal grains is 15.0 ?m or less, an average aspect ratio of the ? phase crystal grains is 1.0 or more and 3.0 or less, and a coefficient of variation of a number density of ?-phase crystal grains distributed in the ? phase is 0.30 or less.

Abstract: To provide a slider-equipped window glass capable of increasing the productivity and quality, and a process for its production. A slider 24 is an integrally molded product comprising an inner layer portion 36 and an outer layer portion 38. The inner layer portion 36 is bonded to a vehicle inner surface 20F of a window glass 20, and the outer layer portion 38 is located on the vehicle inner surface side of the inner layer portion 36 and is made of a material harder than the inner layer portion 36. Further, in the outer layer portion 38, a concave engaging portion 26 to engage with an up-and-down movement guide member 22, is formed.

Abstract: A fixed window glass with a division bar, includes a fixed window glass adapted to be fixed to a vehicle and having an edge portion; and a division bar attached to the edge portion, the division bar comprising a guide portion formed in a U-shaped in section configured to guide elevating and lowering movement of an elevating window glass; wherein the division bar further comprises a first member fixed to the edge portion of the fixed window glass, and a second member to be attachable to the first member from an exterior side of the vehicle; and wherein the second member is attached to the first member, and the division bar has an exterior side surface exposed on the exterior side of the vehicle such that the exposed exterior side surface forms a flush surface.

Abstract: By subjecting a starting material composition containing hexafluorobutadiene and at least one additional compound selected from the group consisting of octafluoro-1-butene, octafluoro-2-butene, heptafluoro-1-butene, and heptafluoro-2-butene to extractive distillation in the presence of an extraction solvent to reduce the concentration of the additional compound, hexafluorobutadiene with higher purity can be obtained.

Abstract: Superabsorbent particles have a median size of from about 50 to about 2,000 micrometers and contain a porous network that includes a plurality of nanopores having an average cross-sectional dimension of from about 10 to about 500 nanometers, wherein the superabsorbent particles exhibit a Vortex Time of about 80 seconds or less and a free swell gel bed permeability (GBP) of 5 darcys or more, of 10 darcys or more, of 20 darcys or more, of 30 darcys or more, of 60 darcys or more, or of 90 darcys or more. A method for forming such superabsorbent particles includes forming a composition that contains a superabsorbent polymer and a solvent system; contacting the composition with a non-solvent system to initiate formation of the porous network through phase inversion; removing non-solvent from the composition; and surface crosslinking the superabsorbent particles.

Abstract: The present invention provides a composition comprising a refrigerant (mixed refrigerant) having three types of performance, i.e., a coefficient of performance (COP) and refrigerating capacity (Cap) that are equivalent to or higher than those of R410A, and a sufficiently low GWP. Specifically, the present invention provides a composition comprising a refrigerant, the refrigerant comprising CF3I, CO2 (R744), and at least one compound A selected from the group consisting of trifluoroethylene (HFO-1123), trans-1,2-difluoroethylene [(E)-RFC-1132], cis-1,2-difluoroethylene [(Z)-HFO-1132], fluoroethylene (HFO-1141), and 3,3,3-trifluoropropyne (TFP).

Abstract: The present invention aims to provide an efficient method for obtaining a desired isomer of HFO-1132 from a composition comprising trans-1,2-difluoroethylene (HFO-1132(E)) and cis-1,2-difluoroethylene (HFO-1132(Z)). The present invention provides, as a means for solving the problem, a method for producing HFO-1132(E) and/or HFO-1132(Z), comprising steps (1) to (3): (1) supplying a composition comprising HFO-1132(E) and/or HFO-1132(Z) to a reactor filled with a catalyst to perform an isomerization reaction between the HFO-1132(E) and the HFO-1132(Z); (2) separating the reaction product obtained in step (1) into a first stream comprising the HFO-1132(E) as a main component, and a second stream comprising the HFO-1132(Z) as a main component; and (3) recycling the first stream or the second stream obtained in step (2) to the reactor, to subject the first stream or the second stream to the isomerization reaction.

Abstract: The present disclosure provides a method for producing HFC-143 that is not expensive, and that is more efficient than conventional methods. Specifically, the present disclosure provides a method for producing 1,1,2-trifluoroethane (HFC-143) that includes contacting at least one chlorine-containing compound selected from the group consisting of 1,1,2-trichloroethane (HCC-140), 1,2-dichloro-1-fluoroethane (HCFC-141), 1,1-dichloro-2-fluoroethane (HCFC-141a), (E,Z)-1,2-dichloroethylene (HCO-1130 (E,Z)), and (E,Z)-1-chloro-2-fluoroethylene (HCFO-1131 (E,Z)) with hydrogen fluoride to perform one or more fluorination reactions, thereby obtaining a reaction gas containing HFC-143, hydrogen chloride, and hydrogen fluoride.

Abstract: According to a method for producing a perfluoroalkadiene compound represented by general formula (1): CF2?CF—(CF2)n-4—CF?CF2 (1), wherein n is an integer of 4 or more, the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2): X1CF2—CFX2—(CF2)n-4—CF2—CF2X1 (2), wherein n is the same as above, X1 is the same or different and is a halogen atom other than fluorine, and X2 is a halogen atom, the perfluoroalkadiene compound can be obtained at a high yield.

Abstract: By subjecting a starting material composition containing hexafluorobutadiene and at least one additional compound selected from the group consisting of octafluoro-1-butene, octafluoro-2-butene, heptafluoro-1-butene, and heptafluoro-2-butene to extractive distillation in the presence of an extraction solvent to reduce the concentration of the additional compound, hexafluorobutadiene with higher purity can be obtained.

Abstract: The present invention provides a refrigerant composition having performance such as ASHRAE non-flammability, a large refrigerating capacity, a GWP lower than that of HFC-134a, and a COP that is equal to that of HFC-134a. A refrigerant composition comprising HFO-1234ze(E) and HFC-134, which is for use in at least one refrigeration apparatus selected from the group consisting of refrigerators, freezers, water coolers, ice makers, refrigerating showcases, freezing showcases, freezing and refrigerating units, refrigerating machines for freezing and refrigerating warehouses, chillers (chilling units), turbo refrigerating machines, and screw refrigerating machines.

Abstract: A method for producing a fluorine-containing halogenated hydrocarbon comprising reacting a chlorine-containing compound and hydrogen fluoride in a vapor phase, and a separation step of separating a reaction product containing hydrogen fluoride, hydrogen chloride, and organic matter containing the fluorine-containing halogenated hydrocarbon into multiple components, the separation step comprising: separating the reaction product into a gas phase and a liquid phase, increasing the pressure of the liquid phase and supplying the liquid phase into a distillation column, compressing the gas phase and supplying the gas phase into the distillation column, separating a first stream containing the hydrogen chloride from the top of the distillation column, and separating a second stream containing the organic matter and the hydrogen fluoride from the bottom of the distillation column.

Abstract: Provided is a mixed refrigerant having two types of performance, i.e., a coefficient of performance that is equivalent to that of R410A and a sufficiently low GWP. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32) at specific concentrations.

Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (1), a compressor (100, 200) can be driven without interposing a power conversion device between an AC power source (90, 190) and a motor (70, 170). Thus, it is possible to provide the air conditioner (1) that is environmentally friendly and has a relatively inexpensive configuration.

Abstract: An air-conditioning unit that is able to suppress ignition at an electric heater even when leakage of refrigerant occurs while a low-GWP refrigerant is used is provided. In an outdoor unit (20) including a casing (60), a compressor (21) provided inside the casing (60) and configured to compress refrigerant containing 1,2-difluoroethylene, and a drain pan heater (54) provided inside the casing (60), an electric power consumption of the drain pan heater (54) is lower than or equal to 300 W.

Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. The motor rotation rate of a compressor (100) can be changed in accordance with an air conditioning load, and thus a high annual performance factor (APF) can be achieved. In addition, an electrolytic capacitor is not required on an output side of a rectifier circuit (21), and thus an increase in the size and cost of the circuit is suppressed.

Abstract: A refrigeration cycle apparatus (10) includes a refrigerant circuit (11) including a compressor (12), a heat source-side heat exchanger (13), an expansion mechanism (14), and a usage-side heat exchanger (15). In the refrigerant circuit (11), a refrigerant containing at least 1,2-difluoroethylene (HFO-1132 (E)) is sealed. At least during a predetermined operation, in at least one of the heat source-side heat exchanger (13) and the usage-side heat exchanger (15), a flow of the refrigerant and a flow of a heating medium that exchanges heating with the refrigerant are counter flows.