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1. 发明授权

US10214468B1 Method for co-production of 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene 有权
公开(公告)号：US10214468B1
公开(公告)日：2019-02-26
申请号：US16079085
申请日：2017-03-08
申请人： Zhejiang Quzhou Juxin Fluorine Chemical Co., Ltd. , Zhejiang Quhua Fluor-Chemistry Co Ltd , Zhejiang Engineering Design Co., Ltd.
发明人： Jiangyong Hong , Aiguo Wang , Bo Yang , Yan Zhang , Guojun Yu , Yang Zhao , Hao Ouyang , Hao Pan
IPC分类号： C07C17/20 , C07C17/25 , C07C17/383 , C07C21/18 , B01J23/26 , C07C21/04 , B01D3/14
摘要： This invention discloses a method for co-production of 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This method includes inputting the mixed gases of hydrogen fluoride and 1,1,1,3,3-pentachloropropane together with 1,1,2,3-tetrachloropropene into a first reactor for a reaction to obtain a reaction product; directly inputting the reaction product into a second reactor to perform a reaction in the presence of a catalyst; separating hydrogen chloride from the obtained product; obtaining 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene respectively after water washing, alkaline washing, drying and rectifying. This invention has the advantages of flexible production, simple process, small investment, low energy consumption and high conversion rate.

2. 发明授权

US09856192B2 Method for preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene 有权
公开(公告)号：US09856192B2
公开(公告)日：2018-01-02
申请号：US15405268
申请日：2017-01-12
申请人： Zhejiang Quzhou Juxin Fluorine Chemical Co., Ltd. , Zhejiang Quhua Fluor-Chemistry Co., Ltd.
发明人： Jun Lei , Aiguo Wang , Bo Yang , Yan Zhang , Huadong Zhou , Yang Zhao , Guoan Liu , Yi Zhu , Gang Su
IPC分类号： C07C17/25 , C07C17/354 , C07C17/383 , C07C17/38
CPC分类号： C07C17/25 , C07C17/354 , C07C17/38 , C07C17/383 , C07C21/18 , C07C19/08
摘要： A method for preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene, including: providing a first reactor including a first section, a second section, and a third section, with each section being filled with different catalysts, preheating hexafluoropropylene and hydrogen, and introducing the hexafluoropropylene and the hydrogen to the first reactor to yield a first mixture including: 1,1,1,2,3-pentafluoropropane, 1,1,1,2,3,3-hexafluoropropane, and hydrogen fluoride; introducing the first mixture to a first distillation column to yield 1,1,1,2,3,3-hexafluoropropane at a top of the first distillation column and 1,1,1,2,3-pentafluoropropane and hydrogen fluoride at a bottom of the first distillation column, recycling the 1,1,1,2,3,3-hexafluoropropane to a lower part of the first section of the first reactor, and introducing the 1,1,1,2,3-pentafluoropropane and the hydrogen fluoride to a second reactor to yield a second mixture including: 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene, hydrogen fluoride, and 1,1,1,2,3-pentafluoropropane; and performing water washing, alkaline washing, drying, and distillation on the second mixture to yield 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene.

3. 发明授权

US09643904B2 Method for preparing 2,3,3,3-tetrafluoropropene 有权
公开(公告)号：US09643904B2
公开(公告)日：2017-05-09
申请号：US15378019
申请日：2016-12-13
申请人： Zhejiang Quzhou Juxin Fluorine Chemical Co., Ltd. , Zhejiang Quhua Fluor-Chemistry Co., Ltd.
发明人： Jun Lei , Aiguo Wang , Bo Yang , Yan Zhang , Huadong Zhou , Yang Zhao , Yi Zhu , Haili Xia , Haojin Shi
IPC分类号： C07C17/23 , C07C17/383
CPC分类号： C07C17/23 , C07C17/383 , C07C21/18
摘要： A method for preparing 2,3,3,3-tetrafluoropropene, including: a) introducing hexafluoropropylene and hydrogen to a first reactor for reaction in the presence of a catalyst to obtain a first mixture; b) washing and drying the first mixture, and introducing the treated first mixture to a first distillation column to obtain 1,1,1,2,3,3-hexafluoropropane, 1,1,1,2,3-pentafluoropropene, and hexafluoropropylene; recycling the 1,1,1,2,3,3-hexafluoropropane to the first reactor, and introducing the 1,1,1,2,3-pentafluoropropene and the hexafluoropropylene to a second distillation column to yield hexafluoropropylene and 1,1,1,2,3-pentafluoropropene; and recycling the hexafluoropropylene to the first reactor; c) introducing the 1,1,1,2,3-pentafluoropropene and hydrogen to a second reactor in the presence of a catalyst to obtain a second mixture; and d) washing and drying the second mixture, and introducing the second mixture to a third distillation column to yield 1,1,1,2,3-pentafluoropropane; and recycling the 1,1,1,2,3-pentafluoropropane to the second reactor to yield 2,3,3,3-tetrafluoropropene.

4. 发明授权

US12005431B2 System, method, and reaction apparatus used for continuous reaction process for preparation of trifluoroethane 有权
公开(公告)号：US12005431B2
公开(公告)日：2024-06-11
申请号：US18038531
申请日：2021-11-29
申请人： ZHEJIANG QUHUA FLUOR-CHEMISTRY CO., Ltd. , Beijing University of Chemical Technology , Juhua Group Co., Ltd
发明人： Liangliang Zhang , Liyang Zhou , Guangwen Chu , Jihong Tong , Jianfeng Chen , Jiangyong Hong , Bo Yang
IPC分类号： B01J8/10 , C07C17/25
CPC分类号： B01J8/10 , C07C17/25
摘要： A reaction apparatus used for a continuous reaction process for the preparation of trifluoroethane includes a housing, a rotary cutting component, a submersible pump and a flow deflector. The flow deflector includes two sets of flow-deflecting plates, each set of said flow-deflecting plates including a plurality of flow-deflecting plates. Two sets of flow-deflecting plates are fixed to each of the two opposing side walls, and the two adjacent flow-deflecting plates are in offset alignment. The submersible pump is arranged inside the reaction chamber body. A liquid inlet line can connect a directly to the submersible pump without requiring the arrangement of an additional pipeline.

5. 发明授权

US11970430B2 Method for co-production of 1,1-difluoroethane and vinyl chloride 有权
公开(公告)号：US11970430B2
公开(公告)日：2024-04-30
申请号：US17627122
申请日：2021-06-25
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Huimei Yu , Jiangyong Hong , Bo Yang , Yang Zhao , Yan Zhang , Linhui Li , Yawen Ren
IPC分类号： C07C17/20 , B01J23/26 , C07C17/383
CPC分类号： C07C17/20 , B01J23/26 , C07C17/383
摘要： The present invention provides a method for the co-production of 1,1-difluoroethane and vinyl chloride, including: (a) vaporizing dichloroethane and hydrogen fluoride, and delivering the vaporized dichloroethane and hydrogen fluoride into a reactor for a catalytic reaction under the action of a catalyst to obtain a reaction product; (b) delivering the reaction product into a first rectifying tower for separation to obtain an overhead product from the first rectifying tower and a bottom product from the first rectifying tower; (c) delivering the overhead product from the first rectifying tower into a second rectifying tower for separation to obtain hydrogen chloride and a bottom product from the second rectifying tower; (d) delivering the bottom product from the second rectifying tower into a purifying tower for purification to obtain an overhead product from the purifying tower; (e) simultaneously delivering the overhead product from the purifying tower and a saturated organic solvent into a third rectifying tower for separation to obtain a 1,1-difluoroethane product and a bottom product from the third rectifying tower; and (f) delivering the bottom product from the third rectifying tower into a fourth rectifying tower for separation to obtain a vinyl chloride product and a bottom stream from the fourth rectifying tower. The present invention has the advantages of simple process, high conversion rate, and good product quality.

6. 发明授权

US10689315B2 Method for co-producing low-carbon foaming agents 有权
公开(公告)号：US10689315B2
公开(公告)日：2020-06-23
申请号：US16337408
申请日：2018-06-25
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Jiangyong Hong , Bo Yang , Yang Zhao , Yan Zhang , Huadong Zhou , Hao Ouyang , Haitao Gong , Min Fang
IPC分类号： C07C17/20 , B01J23/80 , B01J23/825 , C07C17/23 , C07C17/38 , C07C19/08 , C07C21/18
摘要： The invention discloses a method for co-operating low-carbon foaming agents, comprising: preheating 1,1,1,3,3-pentachloropropane and hydrogen fluoride and then introducing into a reactor to have a reaction in the presence of a catalyst to obtain a reaction product, and separating and purifying to obtain the following low-carbon foaming agent products: trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene, 1,1,1,3,3-pentafluoropropane, trans-1-chloro-3,3,3-trifluoropropene, cis-1-chloro-3,3,3-trifluoropropene. The invention has the advantages of simple process, environmental friendliness, high production efficiency and low cost.

7. 发明授权

US09346724B2 Method for preparing 2,3,3,3-tetrafluoropropene 有权
标题翻译：制备2,3,3,3-四氟丙烯的方法
公开(公告)号：US09346724B2
公开(公告)日：2016-05-24
申请号：US14967242
申请日：2015-12-11
申请人： Zhejiang Quhua Fluor-Chemistry Co., Ltd.
发明人： Jun Lei , Bo Yang , Yan Zhang , Yang Zhao , Huadong Zhou , Qiang Zhou , Gang Su
IPC分类号： C07C17/20 , C07C17/00 , C07C17/383 , C07C21/18 , C07C17/087
CPC分类号： C07C17/20 , C07C17/087 , C07C17/204 , C07C17/206 , C07C17/383 , C07C21/18
摘要： A method for preparing 2,3,3,3-tetrafluoropropene, including: a) heating and vaporizing hydrogen fluoride and 1,1,2,3-tetrachloropropene (TCP), and introducing hydrogen fluoride and TCP to a first reactor for reaction in the presence of an A-type catalyst to yield a first product mixture including 2,3-dichloro-3,3-difluoropropene (“HCFO-1232xf”), where the mole ratio between hydrogen fluoride and TCP is between 5:1 and 60:1, the reaction temperature is between 200 and 500° C., and the space velocity is between 200 and 2000 h−1; b) preheating the first product mixture including HCFO-1232xf, introducing the first product mixture including HCFO-1232xf to a second reactor for reaction in the presence of a B-type catalyst to yield a second product mixture including HFO-1234yf, where the temperature of the preheated first product mixture including HCFO-1232xf is higher than the reaction temperature of the first reactor and lower than the reaction temperature of the second reactor.
摘要翻译：一种制备2,3,3,3-四氟丙烯的方法，包括：a）加热和蒸发氟化氢和1,1,2,3-四氯丙烯（TCP），并将氟化氢和TCP引入第一反应器进行反应存在A型催化剂以产生包含2,3-二氯-3,3-二氟丙烯（“HCFO-1232xf”）的第一产物混合物，其中氟化氢和TCP之间的摩尔比为5:1至60:1 ：1，反应温度在200〜500℃之间，空速在200〜2000h -1之间; b）预热包括HCFO-1232xf在内的第一产物混合物，将包含HCFO-1232xf的第一产物混合物引入第二反应器，以在B型催化剂存在下进行反应，得到包含HFO-1234yf的第二产物混合物，其中温度包括HCFO-1232xf的预热的第一产物混合物的温度高于第一反应器的反应温度并低于第二反应器的反应温度。

8. 发明授权

US11713288B2 Method for co-production of hydrofluorocarbons 有权
公开(公告)号：US11713288B2
公开(公告)日：2023-08-01
申请号：US17627127
申请日：2021-07-16
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Iiyang Zhou , Jiangyong Hong , Bo Yang , Yan Zhang , Bin Wu , Xinguo Tang , Huimei Yu
IPC分类号： C07C17/20 , B01J23/26 , B01J23/46 , C07C17/383
CPC分类号： C07C17/206 , B01J23/26 , B01J23/468 , C07C17/383
摘要： The present disclosure provides a method for co-production of hydrofluorocarbons, which includes the steps of: preheating a mixture of chlorinated olefin and hydrogen fluoride; transferring the mixture to the top of a reactor; simultaneously introducing 1,1,1,2,3,3-hexafluoropropene and dichloromethane to the middle of the reactor for reaction; dividing the reactor into three to six sections; filling each section with a catalyst; obtaining reaction products at an outlet of the reactor; and separating the reaction products to obtain various hydrofluorocarbon products, respectively. The present disclosure has the advantages of a high yield, an optimal selectivity and a low energy consumption.

9. 发明授权

US11014861B1 Method for co-producing 2,3,3,3-tetrafluoropropene and trans-1,3,3,3-tetrafluoropropene 有权
公开(公告)号：US11014861B1
公开(公告)日：2021-05-25
申请号：US16337409
申请日：2018-06-25
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Jiangyong Hong , Bo Yang , Hao Ouyang , Yan Zhang , Yang Zhao
IPC分类号： C07C17/20 , B01J23/26 , B01J23/10 , B01J23/08 , C07C21/18
摘要： Disclosed is a method for co-producing 2,3,3,3-tetrafluoropropene and trans-1,3,3,3-tetrafluoropropene, comprising the following steps: preheating a mixture of 1,1,1,2,2-pentachloropropane and 1,1,1,3,3-pentachloropropane together with anhydrous hydrogen fluoride and simultaneously introducing into a first reactor to react in the presence of a catalyst La2O3—Cr2O3 to obtain a first reactor product; directly introducing the first reactor product into a second reactor without separation, and carrying out a catalytic fluorination reaction in the presence of a catalyst Ga2O3—Y2O3—Cr2O3 to obtain a second reactor product; and separating the second reactor product to obtain the products of 2,3,3,3-tetrafluoropropene and trans-1,3,3,3-tetrafluoropropene. The invention has such advantages that the process is simple and less equipment investment is required; used catalysts have good activity, high selectivity and long total life; and the ratio of the two products can be flexibly adjusted according to market demands.

10. 发明授权

US10889740B2 Azeotropic and azeotrope-like composition 有权
公开(公告)号：US10889740B2
公开(公告)日：2021-01-12
申请号：US16335680
申请日：2018-06-25
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Bo Yang , Jiangyong Hong , Yan Zhang , Hao Ouyang , Jinping Fu
IPC分类号： C09K5/04 , C08J9/14 , C09K3/30
摘要： Provided is an azeotropic and azeotrope-like composition, comprising (E)-1,1,1,4,4,4-hexafluoro-2-butene, (E)-1-chloro-,3,3,3-trifluoropropene and 1,1,1,2,3,3-hexafluoropropane. The azeotropic and azeotrope-like composition has the advantages of low GWP, low thermal conductivity and low energy consumption.

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