- METHOD FOR PRODUCING 1-CHLORO-3,3,3-TRIFLUOROPROPENE
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A method for manufacturing 1-chloro-3,3,3-trifluoropropene (1230zd) is provided. The method includes contacting a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) with a metal catalyst in a gas phase. [in-line-formulae]CFaCl3-a—CH2—CHFbCl2-b ??(1)[/in-line-formulae] In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.
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Paragraph 0050; 0059; 0066
(2020/02/10)
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- METHOD FOR PRODUCING 1,3-DICHLORO-3,3-DIFLUOROPROPENE
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A manufacturing method of 1-chloro-3,3,3-trifluoropropene (1233zd) is provided. This manufacturing method includes a reaction in which a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) is heated: [in-line-formulae]CFaCl3-a—CH2—CHFbCl2-b??(1)[/in-line-formulae] In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.
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Paragraph 0052; 0053; 0065
(2020/01/24)
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- GALLIUM CATALYZED DEHYDROCHLORINATION OF A CHLORINATED ALKANE
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The present invention provides processes for the preparation of a chlorinated alkene from a chloroalkane starting material, at least one Lewis acid catalyst comprising at least one of gallium metal, a salt of gallium, a gallium alloy, or combinations thereof, and optionally a solvent.
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Paragraph 0067
(2020/03/15)
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- Method for eliminating hydrogen chloride by catalytic cracking of chloralkane
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The invention discloses a method for eliminating hydrogen chloride by catalytic cracking of chloralkane, comprising the following steps of: carrying out a cracking reaction on chloralkane under the action of a biomass-based nitrogen-doped carbon catalyst to eliminate hydrogen chloride so as to prepare corresponding olefin, wherein the biomass-based nitrogen-doped carbon catalyst is prepared by carbonizing biomass or a mixture of biomass and a nitrogen source at 400-1000 DEG C, and the biomass is selected from at least one of bamboo processing leftovers, wood processing leftovers, plant straws,plant leaves, cereals, beans, cereal processing leftovers, bean processing leftovers and livestock manure. The method disclosed by the invention has the advantages of simple preparation process, easily available raw materials, low cost, strong process controllability, easiness in large-scale production, high catalytic cracking conversion rate of the chloralkane, high product selectivity, low energy consumption and the like.
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Paragraph 0124-0129
(2020/08/06)
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- Method for Producing 1,2-Dichloro-3,3,3-Trifluoropropene
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A method for producing 1,2-dichloro-3,3,3-trifluoropropene according to the present invention includes the step of reacting 1,1,2,3,3-pentachloropropene with a fluorinating agent where hydrogen fluoride is used as the fluorinating agent.
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Paragraph 0250; 0251; 0252; 0255
(2019/04/14)
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- Preparation method of 2,3,3,3-tetrafluoropropene
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The invention discloses a preparation method of 2,3,3,3-tetrafluoropropene. The preparation method comprises the steps: performing telomerization on chloroethylene and CCl4 so as to produce 1,1,1,3,3-pentachloropropane, then performing dehydrochlorination so as to generate 1,1,3,3-tetrachloro-1-propylene, performing exchange of fluorine and chlorine and dehydrochlorination so as to prepare 3,3,3-trifluoro-1-chloropropene, then performing an isomerization reaction so as to obtain 3,3,3-trifluoro-2-chloropropene, performing a liquid phase fluorination reaction so as to synthesize 1,1,1,2-tetrafluoro-2-chloropropane, and finally performing dehydrochlorination so as to obtain 2,3,3,3-tetrafluoropropene. The raw materials have low price, and are easy to obtain, so that the raw material cost inthe production process of 2,3,3,3-tetrafluoropropene is reduced; an industrial chain is formed in the reaction process, and highly-economic values are provided through purification of the intermediateproducts; the reaction conditions are mild, the equipment has simple operation, the raw material conversion rate and product selectivity are high at the reaction stages, and by-products are few, so that a large industrial application prospect is achieved.
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Paragraph 0030; 0033; 0034; 0044; 0047; 0048; 0058; 0061
(2019/04/26)
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- Process for the production of 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd)
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A process for enhancing the selective and efficient production of (E)-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E), or 1233zd(E)). During the manufacture of HCFO-1233zd(E) by fluorination of 1,1,1,3,3-pentachloropropane (HCC-240fa), a by-product of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) is separated and then dehydrochlorinated to form 1,3,3-trichloro-3-fluoropropene (HCFO-1231zd). The HCFO-1231zd is then fluorinated to form HCFO-1233zd(E).
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Page/Page column 10-11
(2018/07/02)
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- COMPOSITIONS BASED ON 1,1,3,3-TETRACHLOROPROPENE
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The present invention relates to compositions based on F-1230za (1,1,3,3-tetrachloropropene), or on a mixture consisting of F-1230za and F-1230zd (1,3,3,3-tetrachloropropene), the manufacture thereof, and also the use thereof in particular for the production of F-1233zdE (trans-1-chloro-3,3,3-trifluoropropene), F-1234zeE (trans-1,3,3,3-tetrafluoropropene), and/or F-245fa (1,1,1,3,3-pentafluoropropane).
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Paragraph 0100
(2018/06/09)
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- E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene
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A production process for the production of E-1-chloro-3,3,3-trifluoropropene, the process including at least one stage during which 1,1,3,3 -tetrachloropropene reacts with anhydrous hydrofluoric acid in the liquid phase, in the absence of a catalyst, with an HF/1,1,3,3-tetrachloropropene molar ratio between 3 and 20 inclusive, at a temperature between 50° C. and 150° C. inclusive and an absolute pressure of between 1 and 20 bar inclusive.
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Page/Page column 5
(2016/03/06)
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- METHOD FOR PRODUCING CHLORINE-CONTAINING OLEFIN
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PROBLEM TO BE SOLVED: To efficiently produce 1220xa using raw material having satisfactory gettability. SOLUTION: By (the third step) where 1,1,1,2,3,3-hexachloropropane (230da) is subjected to dehydrochlorination with a liquid phase in the presence of a lewis acid catalyst, the problem is solved. The 230da can be produced by subjecting the 1,1,3,3-pentachloropropane (240fa) to dehydrochlorination in a liquid phase in the presence of a lewis acid catalyst so as to be converted into 1,1,3,3-tetrachloropropene(1230za)(the first step), and next subjecting the 1230za to chlorination with chlorine (Cl2) at a liquid phase in the presence of a lewis acid catalyst (the second step). The fact that the reaction of the first to third steps can be performed in one pot multistep reaction utilizing all the same lewis acid catalyst has been found. As the lewis acid activity, aluminum chloride and ferric chloride are particularly suitably adopted. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
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Paragraph 0114-0116; 0130
(2018/08/30)
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- A method of manufacturing a fluorine-containing phenylpropene
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PROBLEM TO BE SOLVED: To provide a method for easily and efficiently producing a fluorine-containing propene represented by the general formula: CF3CH=CHZ (wherein, Z is Cl or F), compatible also with industrial-scale production. SOLUTION: The method for producing the fluorine-containing propene represented by general formula (4): CF3CH=CHZ (wherein, Z is Cl or F) is characterized by comprising conducting a reaction, in a vapor-phase state under heating, in the absence of any catalyst, between hydrogen fluoride and at least one chlorine-containing compound selected from the group consisting of chlorine-containing propane represented by general formula (1): CClX2CH2CHClY (wherein, the X groups are the same as or different from each other, and are each Cl or F; and Y is Cl or F); chlorine-containing propene represented by general formula (2): CClX2CH=CHY (wherein, X groups are the same as or different from each other, and are each Cl or F; and Y is Cl or F); and chlorine-containing propene represented by general formula (3): CX2=CHCHClY (wherein, X groups are the same as or different from each other, and are each Cl or F; and Y is Cl or F). COPYRIGHT: (C)2012,JPO&INPIT
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Paragraph 0068-0077
(2020/06/20)
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- E-1-CHLORO-3,3,3-TRIFLUOROPROPENE PRODUCTION PROCESS FROM 1,1,3,3-TETRACHLOROPROPENE
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A production process for the production of E-1-chloro-3,3,3-trifluoropropene, the process including at least one stage during which 1,3,3,3-tetrachloropropene reacts with anhydrous hydrofluoric acid in the liquid phase, in the absence of a catalyst, with an HF/1,1,3,3-tetrachloropropene molar ratio between 3 and 20 inclusive, at a temperature between 50° C. and 150° C. inclusive and an absolute pressure of between 1 and 20 bar inclusive.
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Paragraph 0056
(2015/07/22)
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- METHOD FOR MAKING 1,1,3,3-TETRACHLOROPROPENE
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A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
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Paragraph 0065
(2016/01/16)
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- PROCESS FOR MAKING TETRAFLUOROPROPENE
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The present invention describes a process for making CF3CH═CHF (HFO-1234ze). The process involves the addition of carbon tetrachloride (CCl4) to 1,2-dichloroethylene to form CCl3CHClCHCl2. The compound CCl3CHClCHCl2 thus can then either be treated with HF to produce CF3CHClCHClF as the main product, or it can be converted to CCl2═CHCHCl2 (1230za) by dechlorination. CCl2═CHCHCl2 can be treated with HF such that the main product obtained is CF3CHClCHClF. CF3CH═CHCl may be produced as a by-product, but upon treatment with HF, it affords the compound CF3CHClCHClF. The desired compound, CF3CH═CHF (HFO-1234ze), is obtained as a trans/cis mixture by dehydrochlorination of CF3CH2CHClF or by dechlorination of CF3CHClCHClF.
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Paragraph 0018
(2013/08/28)
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- PROCESS OF MAKING A CHLORINATED HYDROCARBON
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A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1). [in-line-formulae]CCl3—CCl2-mHm—CCl3-nHn??(1)[/in-line-formulae] [in-line-formulae]CCl2═CCl2-mHm-1—CCl3-nHn??(2)[/in-line-formulae] (in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.)
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Page/Page column 9
(2012/03/12)
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- ADIABATIC PLUG FLOW REACTORS AND PROCESSES INCORPORATING THE SAME
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The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
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Page/Page column 6
(2011/04/25)
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- PROCESS FOR THE PRODUCTION OF CHLORINATED AND/OR FLUORINATED PROPENES
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The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
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Page/Page column 7
(2011/04/25)
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- PROCESSES FOR THE PRODUCTION OF CHLORINATED AND/OR FLUORINATED PROPENES AND HIGHER ALKENES
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The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process
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Page/Page column 6-7
(2011/04/25)
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- TWO ROUTES OF PROPENE CONVERSION INTO PERCHLORO DERIVATIVES BY THE ACTION OF HYDROGEN CHLORIDE AND OXYGEN.
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Destructive catalytic conversions of propene by the action of hydrogen chloride and oxygen are of complex character and may proceed by several routes, depending on the oxygen and hydrogen chloride contents in the reactants. Elucidation of the character of these routes is of practical interest, and is necessary for selection of the process conditions. In view of this , the influence of the hydrogen chloride:propene ration on the process was studied in the ranges from 0 to 6 (contract time 2 sec) and from 6 to 12 (contact time 5 sec) at the constant stoichiometric ratio HCl:O//2 equals 2. The interaction of propene with hydrogen chloride at HCl:C//3H//6 ratios from 6 to 12 (Fig. lb) has certain peculiarities, with chlorinolysis of hexachloropropene. However, at HCl:C//3H//6 ratios from 9 to 10. 5 acrolein is formed and then converted into various compounds with evolution of the corresponding amounts of carbon monoxide. It is shown that the conversions of propene into various compounds proceed by two routes, with intermediate formation of allyl chloride and acrolein.
- Potapov
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p. 1773 - 1774
(2007/10/02)
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