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公开(公告)号：US20240300884A1
公开(公告)日：2024-09-12
申请号：US18636199
申请日：2024-04-15
发明人： Haluk Kopkalli , Haiyou Wang , Terris Yang , Jennifer W. McClaine , Richard Wilcox , Joshua Close , Rajendar Mallepally
摘要： Impurities such as sulfur dioxide (SO2) are removed from trifluoroacetyl chloride (TFAC) through distillation, adsorption, or a combination thereof, and/or including the formation of an azeotrope or azeotrope-like composition including effective amounts of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC). The trifluoroacetyl chloride (TFAC) thus purified may then be used in the manufacture of trifluoroiodomethane (CF3I). Also disclosed are azeotropes and azeotrope like compositions of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC).
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公开(公告)号：US12083493B2
公开(公告)日：2024-09-10
申请号：US17192421
申请日：2021-03-04
发明人： Anup Doraiswamy , Nathan Stafford
IPC分类号： B01J20/08 , B01D3/14 , B01D3/36 , B01D53/04 , B01D53/82 , B01D53/96 , B01J20/34 , C07C17/38 , C07C17/383 , C07C17/389
CPC分类号： B01J20/08 , B01D3/143 , B01D3/36 , B01D53/04 , B01D53/82 , B01D53/96 , B01J20/3458 , C07C17/383 , C07C17/389 , B01D2253/104 , B01D2253/1124 , B01D2253/25 , B01D2256/26 , B01D2257/2064 , B01D2257/2066 , B01D2259/40086 , B01D2259/4009 , B01J2220/56 , B01J2220/58
摘要： Methods for purification of a fluorocarbon or hydrofluorocarbon containing at least one undesired halocarbon impurities comprise flowing the fluorocarbon or hydrofluorocarbon through at least one adsorbent beds to selectively adsorb the at least one undesired halocarbon impurities through physical adsorption and/or chemical adsorption, wherein the at least one adsorbent beds contain a metal oxide supported on an adsorbent in an inert atmosphere.
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3.发明授权公开(公告)号：US12018129B2
公开(公告)日：2024-06-25
申请号：US17903171
申请日：2022-09-06
申请人： Ticona LLC
摘要： Methods and systems are provided for recovering an organic solvent from a waste sludge generated during formation of a polyarylene sulfide. Methods include combining the waste sludge with a liquid extractant that extracts the organic solvent into a homogeneous liquid phase. Upon a temperature change, the homogeneous liquid phase can separate into an organic solvent-rich liquid phase and a liquid extractant-rich liquid phase. The two liquid phases can be separated and further processed if desired to further purify the recovered organic solvent. Methods can also include forming the polyarylene sulfide by a polymerization process and thereafter purifying a slurry of the polyarylene sulfide. A liquid washing product is formed as a result of the purification process, which can be subjected to a distillation process that forms an organic solvent-rich stream and the waste sludge.
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公开(公告)号：US11987553B2
公开(公告)日：2024-05-21
申请号：US17466704
申请日：2021-09-03
发明人： Haluk Kopkalli , Haiyou Wang , Terris Yang , Jennifer W. McClaine , Richard Wilcox , Joshua Close , Rajendar Mallepally
CPC分类号： C07C71/00 , B01D3/36 , B01D53/02 , B01J20/18 , C07C51/64 , C07C53/48 , B01D2253/108 , C07C51/64 , C07C53/48
摘要： Impurities such as sulfur dioxide (SO2) are removed from trifluoroacetyl chloride (TFAC) through distillation, adsorption, or a combination thereof, and/or including the formation of an azeotrope or azeotrope-like composition including effective amounts of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC). The trifluoroacetyl chloride (TFAC) thus purified may then be used in the manufacture of trifluoroiodomethane (CF3I). Also disclosed are azeotropes and azeotrope like compositions of sulfur dioxide (SO2) and trifluoroacetyl chloride (TFAC).
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5.发明公开公开(公告)号：US20230415066A1
公开(公告)日：2023-12-28
申请号：US18030939
申请日：2021-09-28
申请人： DEHON SAS
CPC分类号： B01D3/36 , B01D3/4294
摘要： Disclosed is a method for separating a plurality of chemical components from a chemical mixture comprising a plurality of fluorinated fluids, the method comprising: • a step of identifying, in the chemical mixture, at least two sub-mixtures, each complex sub-mixture being associated either with a first group for secondary pressure swing distillation or with a second group (G2) for secondary extractive distillation, • a step of primary distillation, using a main column, so as to separate each identified sub-mixture, • a secondary distillation step, using the same advanced unit of two auxiliary columns, for distilling each complex sub-mixture, the complex sub-mixtures of the first group being separated by the pressure swing distillation method and the complex sub-mixtures of the second group being separated by the extractive distillation method.
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公开(公告)号：US20230357806A1
公开(公告)日：2023-11-09
申请号：US18029120
申请日：2021-09-30
申请人： GENOMIUM, INC.
发明人： CENAN OZMERAL
IPC分类号： C12P7/24 , C12N9/88 , C07C51/235 , B01D3/00 , B01D3/36
CPC分类号： C12P7/24 , C12N9/88 , C12Y402/0103 , C07C51/235 , B01D3/002 , B01D3/36 , B01D3/009
摘要： A method for producing bioacrolein using renewable glycerol as a feedstock as well as a method for producing bioacrylic acid using bioacrolein as a feedstock are provided in the present invention. Also provided in the present invention are recombinant microbial cells useful in producing 3-hydroxypropionaldhyde from glycerol, method of converting the 3-hydroxypropionaldhyde into bioacrolein and a process for recovering acrolein using a fractional distillation process.
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公开(公告)号：US20190247766A1
公开(公告)日：2019-08-15
申请号：US16395662
申请日：2019-04-26
CPC分类号： B01D3/143 , B01D3/141 , B01D3/36 , C07C7/06 , C07C29/82 , C07C45/80 , C07C45/84 , C07C67/54 , C07C209/86 , C07C211/07 , C07C47/02 , C07C49/08 , C07C31/12 , C07C31/08 , C07C31/04 , C07C47/22 , C07C69/54 , C07C69/82 , C07C15/08
摘要： Processes and systems for separating a mixture of three or more chemical components into multiple product streams each enriched in one of the components are provided herein. In some aspects, the present invention relates to processes for the separation of a chemical mixture including at least a heavy key component, an intermediate key component, and a light key component to form a product stream enriched in the light key component, a product stream enriched in the intermediate key component, and a product stream enriched in the heavy key component. Systems described herein may include one or more thermally coupled distillation columns including, for example, a dividing wall column, or a plurality of distillation columns arranged in a thermally integrated configuration.
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公开(公告)号：US20180179135A1
公开(公告)日：2018-06-28
申请号：US15846770
申请日：2017-12-19
申请人： UOP LLC
发明人： Steven L. Krupa
摘要： A process for the production of diisopropyl ether from high purity propylene without the need of a propane-propylene fractionation column has been developed. The process involves (1) reacting a high purity propylene feedstock and water to produce isopropyl alcohol in a reactor and reacting the isopropyl alcohol with propylene to produce diisopropyl ether in the presence of an acidic ion exchange resin catalyst and a C4 diluent to generate a reactor effluent stream containing at least water, isopropyl alcohol, diisopropyl ether, propylene, and acid, (2) passing the reactor effluent to an acid removal zone to produce an acid-depleted stream, (3) dividing the acid-depleted stream into two portions, (4) recycling a portion to the reactor (5) purging a portion to prevent propane build-up and (6) recovering product diisopropyl alcohol.
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公开(公告)号：US20180179134A1
公开(公告)日：2018-06-28
申请号：US15824993
申请日：2017-11-28
申请人： UOP LLC
发明人： Charles P. Luebke , Steven L. Krupa
CPC分类号： C07C41/06 , B01D3/141 , B01D3/36 , B01J31/08 , B01J31/10 , C07C29/04 , C07C41/05 , C07C41/36 , C07C43/04 , C07C31/10
摘要： A process for the production of diisopropyl ether from high purity propylene without the need of a propane-propylene fractionation column has been developed. The process involves (1) reacting a high purity propylene feedstock and water to produce isopropyl alcohol in a reactor and reacting the isopropyl alcohol with propylene to produce diisopropyl ether in the presence of an acidic ion exchange resin catalyst and a propane diluent to generate a reactor effluent stream containing at least water, isopropyl alcohol, diisopropyl ether, propylene, and acid, (2) passing the reactor effluent to an acid removal zone to produce an acid-depleted stream, (3) dividing the acid-depleted stream into two portions, (4) recycling a portion to the reactor (5) allowing propane to build-up to an amount sufficient to operate as a diluent and (6) recovering product diisopropyl alcohol.
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公开(公告)号：US20180179133A1
公开(公告)日：2018-06-28
申请号：US15824965
申请日：2017-11-28
申请人： UOP LLC
发明人： Steven L. Krupa
CPC分类号： C07C41/06 , B01D3/141 , B01D3/36 , B01J31/08 , B01J31/10 , C07C29/04 , C07C41/05 , C07C41/36 , C07C43/04 , C07C31/10
摘要： A process for the production of diisopropyl ether from high purity propylene without the need of a propane-propylene fractionation column has been developed. The process involves (1) reacting a high purity propylene feedstock and water to produce isopropyl alcohol in a reactor and reacting the isopropyl alcohol with propylene to produce diisopropyl ether in the presence of an acidic ion exchange resin catalyst and a C4 diluent to generate a reactor effluent stream containing at least water, isopropyl alcohol, diisopropyl ether, propylene, and acid, (2) passing the reactor effluent to an acid removal zone to produce an acid-depleted stream, (3) dividing the acid-depleted stream into two portions, (4) recycling a portion to the reactor (5) purging a portion to prevent propane build-up and (6) recovering product diisopropyl alcohol.
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