公开(公告)号：US20220106511A1

公开(公告)日：2022-04-07

申请号：US17551792

申请日：2021-12-15

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Shun OHKUBO ,  Daisuke KARUBE

IPC: C09K5/04

Abstract: Provided is a novel, low-GWP mixed refrigerant. A composition contains a refrigerant that contains trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 1,3,3,3-tetrafluoropropene (R1234ze).

公开(公告)号：US20220098460A1

公开(公告)日：2022-03-31

申请号：US17550223

申请日：2021-12-14

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Shun OHKUBO

IPC: C09K5/04

Abstract: An object of the present invention is to provide a novel mixed refrigerant having a low GWP. To achieve the above object, the present invention provides a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)).

公开(公告)号：US20210171815A1

公开(公告)日：2021-06-10

申请号：US16772076

申请日：2018-12-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI

IPC: C09K5/04

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.

公开(公告)号：US20210087446A1

公开(公告)日：2021-03-25

申请号：US16772011

申请日：2018-12-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU

IPC: C09K5/04

Abstract: An object is to provide a mixed refrigerant having four types of performance, i.e., a coefficient of performance and a refrigerating capacity that are equivalent to those of R410A, a sufficiently low GWP, and a lower flammability (Class 2L) according to the ASHRAE standard. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)) and trifluoroethylene (HFO-1123) in a total amount of 99.5 mass % or more based on the entire refrigerant, and the refrigerant comprising 62.5 mass % to 72.5 mass % of HFO-1132(E) based on the entire refrigerant.

公开(公告)号：US20210079277A1

公开(公告)日：2021-03-18

申请号：US16613192

申请日：2018-03-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuuki YOTSUMOTO ,  Daisuke KARUBE ,  Yasufu YAMADA

IPC: C09K5/04

Abstract: This invention provides a composition comprising a compound that has low GWP in spite of having low flammability, and that is less likely to lead to a negative-pressure state during operation even when applied to a large air conditioner; and to a refrigerating machine, large air conditioner, or industrial process cooler, each comprising the composition. Specifically, the present invention provides a composition comprising a refrigerant, the refrigerant comprising a compound represented by the following general formula (1): CmHnFxCly (1), wherein m is 4≤m≤10, n+x+y is equal to 2m−2, and the compound has a triple bond in its molecule.

公开(公告)号：US20200333041A1

公开(公告)日：2020-10-22

申请号：US16955222

申请日：2018-12-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Tetsushi TSUDA ,  Takeo ABE ,  Yumi TODA

IPC: F24F13/30 ,  F24F1/0059 ,  F24F1/24 ,  C09K5/04

Abstract: A refrigeration cycle apparatus that can improve operation efficiency when a refrigerant that contains at least 1,2-difluoroethylene is used is provided. An air conditioning apparatus 1 includes a compressor (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), an indoor heat exchanger (31), and a suction injection pipe (40), and uses a refrigerant that contains at least 1,2-difluoroethylene. The suction injection pipe (40) allows a part of a refrigerant that flows toward the indoor heat exchanger (31) from the outdoor heat exchanger (23) to merge with a low-pressure refrigerant that is sucked into the compressor (21).

公开(公告)号：US20200332166A1

公开(公告)日：2020-10-22

申请号：US16955565

申请日：2018-12-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Keisuke OHTSUKA ,  Yoshinari ASANO ,  Keiji AOTA ,  Yuuichi YANAGI ,  Yoshikazu NAKAO ,  Takeo ABE ,  Yumi TODA ,  Tetsushi TSUDA

IPC: C09K5/04 ,  F25B41/00

Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

公开(公告)号：US20190039975A1

公开(公告)日：2019-02-07

申请号：US16074524

申请日：2017-02-03

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Shun OHKUBO ,  Takashi USUI ,  Takehiro CHAKI ,  Daisuke KARUBE

IPC: C07C17/20 ,  C07C17/15

Abstract: The present invention provides a method for producing tetrafluoropropene represented by formula (1) by bringing monochlorotrifluoropropene represented by formula (2) into contact with anhydrous hydrogen fluoride in the presence of a catalyst, the method being capable of maintaining the conversion of the starting material and the selectivity for the target product within an excellent range, while reducing degradation of the catalyst to maintain the reaction for a long time. The invention specifically relates to a method for producing tetrafluoropropene represented by formula (1) CF3CX═CHX wherein Xs are different from each other and represent H or F, including the step of bringing an organic substance containing monochlorotrifluoropropene represented by formula (2) CF3CY═CHY wherein Ys are different from each other and represent H or Cl into contact with anhydrous hydrogen fluoride in the presence of a catalyst in a reactor, wherein the amount of the anhydrous hydrogen fluoride supplied to the reactor is 30 moles or more per mole of the organic substance supplied to the reactor.

公开(公告)号：US20180044268A1

公开(公告)日：2018-02-15

申请号：US15553592

申请日：2016-02-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke KARUBE ,  Satoshi OHISHI ,  Michiaki OKADA

IPC: C07C17/25 ,  C07C17/16 ,  C07C17/42 ,  C09K5/04

CPC classification number: C07C17/25 ,  C07B61/00 ,  C07C17/16 ,  C07C17/42 ,  C07C19/10 ,  C07C21/18 ,  C09K5/04

Abstract: The present invention provides a method for producing 1233yd that enables high conversion of the starting compound and high selectivity of 1233yd.The present invention provide a method for producing 1-chloro-2,3,3-trifluoropropene (1233yd), comprising the step of dehydrofluorinating 3-chloro-1,1,2,2-tetrafluoropropane (244ca).

公开(公告)号：US20160355453A1

公开(公告)日：2016-12-08

申请号：US15166906

申请日：2016-05-27

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Shun OHKUBO ,  Daisuke KARUBE

IPC: C07C17/20 ,  B01J23/652

CPC classification number: C07C17/206 ,  B01J23/46 ,  B01J23/462 ,  B01J23/464 ,  B01J23/466 ,  B01J23/468 ,  B01J23/6522 ,  C07C17/25 ,  C07C21/18

Abstract: In the production of fluorine-containing olefins using a chlorine-containing alkane or a chlorine-containing alkene as a starting material, a process for producing a plurality of useful fluorine-containing olefins with high selectivity using the same raw material, the same equipment, and the same conditions is provided. The present invention provides a process for producing fluorine-containing olefins, the process comprising reacting a chlorine-containing compound represented by a specific formula and anhydrous hydrogen fluoride in the presence of oxidative gas and a fluorination catalyst, wherein the fluorination catalyst is a catalyst in which at least one metal element M selected from the group consisting of Group VIII and Group IX is present together with chromium. This production process can simultaneously produce two or more fluorine-containing olefin compounds, including HFO-1234yf and HFO-1234ze, with high selectivity.

Abstract translation: 在使用含氯烷烃或含氯烯烃作为起始原料的含氟烯烃的制造中，使用相同的原料制造多种可用的含氟烯烃的方法，其选择性高，相同的设备， 并提供相同的条件。 本发明提供含氟烯烃的制造方法，其特征在于，在氧化性气体和氟化催化剂的存在下，使由特定式表示的含氯化合物与无水氟化氢反应，其中，氟化催化剂为 其中选自由VIII族和IX族组成的组中的至少一种金属元素M与铬一起存在。 该生产方法可以高选择性同时生产两种或多种含氟烯烃化合物，包括HFO-1234yf和HFO-1234ze。