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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

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.

3. 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.

4. 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.

5. 发明授权

US11104833B2 Hydrofluoroolefins-containing refrigerant composition 有权
公开(公告)号：US11104833B2
公开(公告)日：2021-08-31
申请号：US16075988
申请日：2017-07-21
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Jiangyong Hong , Bo Yang , Aiguo Wang , Yan Zhang , Yang Zhao , Hao Ouyang
IPC分类号： C09K5/04
摘要： A hydrofluoroolefins-containing refrigerant composition is disclosed. The composition includes the following ingredients in part by weight: 50-90 parts of 2,3,3,3-tetrafluoropropene, 5-30 parts of trans-1,3,3,3-tetrafluoropropene, and 5-20 parts of fluoroethane. The composition of this invention has the advantages of low GWP, environmental friendliness, good refrigeration effect and high compatibility with lubricants.

6. 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.

7. 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.

8. 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.

9. 发明授权

US10590050B2 Method for co-producing various alkenyl halides and hydrofluoroalkanes 有权
公开(公告)号：US10590050B2
公开(公告)日：2020-03-17
申请号：US16337407
申请日：2018-06-25
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Jiangyong Hong , Bo Yang , Yan Zhang , Guojun Yu , Yang Zhao , Hao Ouyang , Haitao Gong
IPC分类号： C07C17/20 , B01J21/04 , B01J23/26 , C07C17/21 , C07C17/358 , B01J23/60 , B01J23/62 , C07C17/383 , C07C21/18 , B01J23/58
摘要： Disclosed is a method for co-producing various alkenyl halides and hydrofluoroalkanes: cis-1-chloro-3,3,3-trifluoropropene is introduced into a first reactor to carry out an isomerization reaction in the presence of a first catalyst, and the reaction product is rectified to obtain a product trans-1-chloro-3,3,3-trifluoropropene; and 30-70 wt % of trans-1-chloro-3,3,3-trifluoropropene and hydrogen fluoride are mixed and then introduced into a second reactor to carry out a reaction in the presence of a second catalyst to obtain a second reactor reaction product; the second reactor reaction product is introduced into a phase separator for separation, and the obtained organic phase is rectified to obtain the products trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane. The invention has the advantages of simple process, high efficiency, high operation flexibility, less investment and low energy consumption.

10. 发明授权

US10392328B2 Low-carbon environmentally-friendly foamer composition 有权
公开(公告)号：US10392328B2
公开(公告)日：2019-08-27
申请号：US16076324
申请日：2017-07-21
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： C07C21/18 , C07C19/08 , C08L75/04 , C08J9/14 , C08G101/00
摘要： A low-carbon environmentally-friendly foamer composition is disclosed. The composition includes the following ingredients in mass percentage: 60-98.99% of 1-chloro-3,3,3-trifluoropropene, 1-39.9% of 1,1,1,2,3-pentafluoropropane and 0.01-1% of 1,2,2,3-tetrafluoropropane. The GWP value of the low-carbon environmentally-friendly foamer composition is smaller than the GWP value of a single-medium HFC-245fa. This low-carbon environmentally-friendly foamer composition has the features of environmental protection, excellent foaming performance and little modification of foaming devices, and can reduce the heat conductivity coefficient and overall energy consumption level. Therefore, the low-carbon environmentally-friendly foamer composition is the best choice for high-performance hard insulating foam, and is an ideal choice of future foamer.

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