Daikin Industries, Ltd.

Sharp Kabushiki Kaisha Corporation

Takashi Usui

Takehiro Chaki

Tsubasa Nakaue

Tomoyuki Iwamoto

Kazuhiro Takahashi

Megumi Kushida

Shun Ohkubo

Yuzo Komatsu

Tomoki Minamikawa

Yuuko Ito

Mitsushi Itano

Daisuke Karube

Yuuki Yotsumoto

Katsuhiro Nagayama

Takashi Yoshimura

Michiko Fujiwara

Satoshi Tokuno

Tomoyuki Gotou

Tomoe Matsuoka

Kiyoto Motoyama

Masaya Fujitani

Kiyoshi Takato

Tomoyuki Goto

Yuuko Itou

An object is to suppress disproportionation in a refrigerant comprising HFO-1132(E). Provided as a means for a solution is a method for suppressing a disproportionation reaction of HFO-1132(E), the method comprising operating a refrigeration cycle using a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32).

Refrigerant-containing composition, use thereof, refrigerator having said composition, and method for operating said refrigerator

The propagation of a disproportionation reaction of a refrigerant is suppressed. Disclosed is a method that uses a composition in a device, in which the composition includes one or more compounds selected from the group of ethylene-based fluoroolefins, 2,3,3,3-tetrafluoropropene, and 1,3,3,3-tetrafluoropropene, and the heat capacity of a portion with a melting point greater than or equal to 1,000° C. in the device is greater than or equal to 6.5 J/K.

Use of composition in device, device, and refrigeration cycle apparatus

The present disclosure provides a method for purifying HFO-1132 to a high purity while suppressing the isomerization and loss of HFO-1132. Specifically, the present disclosure provides a method for purifying 1,2-difluoroethylene, which is HFO-1132, the method comprising, in this order,

Method for purifying 1,2-difluoroethylene (HFO-1132)

Provided is a method for producing an olefin compound using reaction with a base, whereby a target product with a higher purity than the prior art can be obtained. Specifically, provided is a method for producing an olefin compound by reacting a phosphorus-containing olefin compound salt with a base to obtain a dephosphorized and hydrogenated olefin compound, wherein the temperature of the reaction is 50° C. or less.

Olefin compound production method

Provided is a method for purifying a phosphorus-containing olefin compound salt as a raw material or an intermediate that is useful to increase the purity of a target product in a method for producing an olefin compound and that can be applied to the production method, and a method for producing an olefin compound using a purified product obtained thereby. Specifically, provided is a method for purifying a phosphorus-containing olefin compound salt, comprising reprecipitating and/or recrystallizing a solid comprising at least one phosphorus-containing olefin compound salt selected from the group consisting of:

Method for purifying phosphorus-containing olefin compound salt and method for producing olefin compound using purified product obtained thereby

An image forming apparatus includes: a reader that reads a document and generates first document data; a first extractor that extracts first character information included in the first document data; a second extractor that searches a storage device storing a plurality of pieces of document data and extracts one or more pieces of second document data including second character information related to the first character information; and an estimator that estimates a file name to be set for the first document data from the first character information, on basis of a naming rule for a file name of the second document data based on a relation between the second character information and the file name of the second document data.

Image forming apparatus, image forming system, and image forming method for determining a file name for scanned image data

An image-forming apparatus includes a detachable consumable; a printer that prints an image using the consumable; and a controller that determines whether control information that is set for the consumable and that is for control of the printer exists. The controller extracts, when it is determined that the control information corresponding to the consumable does not exist, image information from an image of a predetermined test pattern printed by the printer, and acquires the control information generated based on the extracted image information.

Image-forming apparatus, print management system, and method for controlling image-forming apparatus

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&#x3c;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.

Production method for fluoro-ethane and production method for fluoro-olefin

An image forming apparatus includes an acquirer, a storage, and a controller. The acquirer acquires supplies-specific information uniquely attached to supplies used or consumed in image formation. The storage stores apparatus-specific information. The controller generates a one-time code as authentication information and also generates application code information for applying for apparatus use permission using the one-time code, the supplies-specific information, and the apparatus-specific information.

Image forming apparatus, application permission system, and application-code information generation method

Provided are a method for producing a fluoroethane, which is the desired product, with high selectivity; and a method for producing a fluoroolefin. The production method according to the present disclosure comprises obtaining a product comprising a fluoroethane represented by CXXFCXXX(wherein X, X, X, X, and Xare the same or different and each represents a hydrogen atom, a fluorine atom, or a chlorine atom; and at least one of X, X, X, X, and Xrepresents a hydrogen atom) from a fluoroethylene by a reaction in the presence of at least one catalyst in at least one reactor. The reaction is performed by introducing a starting material gas comprising the fluoroethylene into the reactor, and the water content in the starting material gas is 150 ppm by mass or less based on the total mass of the starting material gas.

Fluoroethane production method and fluoroolefin production method

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.

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.

Method for producing difluoroethylene

The present disclosure provides a method for producing fluoroolefin represented by formula (1): CXX&#x2550;CXX, wherein X, X, X, and Xare the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing a fluoroolefin represented by formula (1) described above, the method comprising a dehydrofluorination step of bringing a fluorocarbon represented by formula (2): CXXFCXXH, wherein X, X, X, and Xare as defined above, into contact with a metal catalyst to perform dehydrofluorination, the dehydrofluorination step being performed in the gas phase in the presence of water, the concentration of the water being less than 500 ppm relative to the fluorocarbon represented by formula (2).

Method for producing fluoroolefin

The present disclosure provides a method for producing fluoroolefin represented by formula (1): CXX&#x2550;CXX, wherein X, X, X, and Xare the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing fluoroolefin represented by formula (1), wherein the method includes the step of performing dehydrofluorination by bringing a fluorocarbon represented by formula (2): CXXFCXXH, wherein X, X, X, and Xare as defined above, into contact with a base, and the dehydrofluorination step is performed in the liquid phase at a temperature of &#x2212;70&#xb0; C. or higher to less than 120&#xb0; C.

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Osaka, Japan

Takashi Usui