公开(公告)号：US20180273448A1

公开(公告)日：2018-09-27

申请号：US15544987

申请日：2016-01-19

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke KARUBE ,  Takehiro CHAKI

IPC: C07C17/20

CPC classification number: C07C17/20 ,  C07B61/00 ,  C07C17/206 ,  C07C17/25 ,  C07C21/18

Abstract: The present invention provides an economically advantageous method for efficiently producing a fluorine-containing compound while ensuring high conversion of the starting compound, reducing production of 245cb, and reducing equipment costs and energy costs. Specifically, the present invention provides a method for producing a fluorine-containing compound represented by Formula (3): CF3CFYnCH2Zn (wherein n is 0 or 1, one of Y and Z is H, and the other is F or Cl) by successively reacting at least one chlorine-containing compound selected from the group consisting of chlorine-containing fluoroalkane represented by Formula (1): CX3CHClCH2Cl (wherein X is independently F or Cl, with the proviso that at least one X is F) and chlorine-containing fluoroolefin represented by Formula (2): CX3CCl═CH2 (wherein X is independently F or Cl, with the proviso that at least one X is F) with anhydrous hydrogen fluoride in the presence of a fluorination catalyst, wherein the concentration of hydrogen chloride in a reactor inlet gas is not less than 0.01 vol % and not more than 10 vol %.

公开(公告)号：US20170233315A1

公开(公告)日：2017-08-17

申请号：US15514901

申请日：2015-07-07

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takehiro CHAKI ,  Daisuke KARUBE

IPC: C07C17/20

CPC classification number: C07C17/206 ,  C07B61/00 ,  C07C17/25 ,  Y02P20/582 ,  C07C21/18

Abstract: This invention provides a method capable of efficiently producing 2,3,3,3-tetrafluoropropene (HFO-1234yf) with a recycling step using substantially a single reaction step. A method for producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), comprising a reaction step of reacting at least one chlorine-containing starting compound selected from the group consisting of chlorine-containing alkanes represented by formula (1): CX2YCHClCH2Z (wherein X, Y and Z independently represent H, F or Cl) and chlorine-containing alkenes represented by formula (2): CX2YCCl═CZ2 (wherein X, Y and Z independently represent H, F or Cl) with a fluorinating agent, wherein the molar ratio of the chlorine-containing starting compound represented by formula (1) or (2) newly supplied to the reactor inlet is less than 1.2 relative to 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) in components obtained from the reactor outlet.

公开(公告)号：US20170217860A1

公开(公告)日：2017-08-03

申请号：US15514618

申请日：2015-10-07

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke KARUBE ,  Masayuki KISHIMOTO ,  Yuzo KOMATSU ,  Takehiro CHAKI

IPC: C07C17/25

CPC classification number: C07C17/25 ,  C07C17/20 ,  C07C17/206 ,  C07C19/01 ,  C07C21/04 ,  C07C21/18

Abstract: The present invention provides a method for producing a fluorine-containing haloolefin compound, said method being able to reduce the generation of overly fluorinated compounds as by-products in the production of the fluorine-containing haloolefin compound and produce the target product of high purity at a high yield. The invention also provides a halogenated hydrocarbon composition. The method for producing a haloolefin compound through the step of fluorinating a starting material containing at least one of a pentachloropropane or a tetrachloropropene in the presence of a fluorinating agent in a reactor, according to the present invention, includes the step of adding hydrogen chloride to the reactor. The composition according to the present invention contains: at least one member selected from the group consisting of a pentachloropropane and a tetrachloropropene; and hydrogen chloride.

公开(公告)号：US20160052841A1

公开(公告)日：2016-02-25

申请号：US14778631

申请日：2014-03-07

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke KARUBE ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU

IPC: C07C17/20

CPC classification number: C07C17/20 ,  C07C17/206 ,  C07C21/18

Abstract: The present invention provides a method for producing a fluorine-containing olefin, the method comprising reacting a chlorine-containing compound represented by a specific formula with anhydrous hydrogen fluoride in the presence of a chromium atom-containing fluorination catalyst, the reaction being carried out at a temperature within the range of 200 to 350° C. in the presence of 0.0001 to 0.03 mol of molecular chlorine per mol of the chlorine-containing compound. The present invention is capable of achieving the effect of suppressing catalyst deterioration, maintaining the starting material conversion and the target product selectivity within excellent ranges, and reducing adverse effects caused by the use of a large amount of non-condensable gas.

Abstract translation: 本发明提供一种含氟烯烃的制造方法，其特征在于，在含铬原子的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，该反应在 在每摩尔含氯化合物存在0.0001至0.03摩尔分子氯的情况下，温度在200至350℃的范围内。 本发明能够实现抑制催化剂劣化，维持原料转化率和目标产物选择性在优异范围内的效果，并且减少由于使用大量不可冷凝气体引起的不利影响。