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公开(公告)号：US20240286983A1
公开(公告)日：2024-08-29
申请号：US18656576
申请日：2024-05-06
发明人： Qiang WU , Mian LI , Wulong YANG , Fuan WAN , Weidong XU , Shufang QIN , Hang YUE , Weijia WANG
CPC分类号： C07C29/78 , B01D9/0022 , B01D9/0036 , B01D9/0063 , B01D15/361 , B01D21/262 , B01D61/027 , B01D69/02 , C07C29/76 , B01D2009/0086 , B01D2325/34
摘要： The present disclosure provides a preparation system and a preparation method for xylitol crystals. In the preparation system, outlets of a first centrifuge are connected with an inlet of a hot air drying tank and an inlet of a primary mother liquor storage tank through pipelines, respectively. Outlets of a second centrifuge are connected with an inlet of a second fluidized bed dryer and an inlet of a secondary mother liquor storage tank through pipelines, respectively. An outlet of a dicrystalline sugar dissolution tank is connected with an inlet of a blending tank through pipeline. An outlet of a tricrystalline sugar dissolution tank is connected with the inlet of the primary mother liquor storage tank. The blending tank is provided with an inlet for a raw material of xylitol hydrogenation solution. An output of an outlet of a first fluidized bed dryer is prepared xylitol crystals.
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公开(公告)号：US20240279261A1
公开(公告)日：2024-08-22
申请号：US18651633
申请日：2024-04-30
发明人： Xinfeng HAN , Dongxu LI , Mingqian YANG , Chengjun LIAO , Shufang QIN , Jiaxing LUO
IPC分类号： C07H3/02 , B01D1/28 , B01D9/00 , B01D15/36 , B01D21/26 , B01D69/02 , B01F21/00 , B01F35/21 , C07H1/06
CPC分类号： C07H3/02 , B01D1/28 , B01D9/0022 , B01D9/0031 , B01D15/361 , B01D21/262 , B01D69/02 , B01F21/00 , B01F35/2115 , C07H1/06 , B01D2009/0086 , B01D2325/02834
摘要： Embodiments of the present disclosure provide a method for preparing a high-purity arabinose crystal, comprising operations of dissolving, blending, ion exchange, decolorization and filtration, fine filtration, evaporation and concentration, crystallization, centrifugation, and drying performed in sequence on a low-purity arabinose crystal. Throughout the operations of preparing the arabinose crystal, a pH value of a material may be controlled between 4.3 and 7.5, and a temperature may not exceed 70° C. This prevents arabinose from transforming into impurities under a high temperature, thereby maintaining and improving a purity of the prepared arabinose crystal.
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公开(公告)号：US20240261734A1
公开(公告)日：2024-08-08
申请号：US18565354
申请日：2022-05-31
CPC分类号： B01D65/08 , B01D67/00931 , B01D67/00933 , B01D69/02 , C02F1/44 , C02F3/1268 , C02F3/34 , B01D2321/28 , B01D2323/02 , B01D2323/12 , B01D2323/30 , B01D2325/20 , B01D2325/36
摘要： The present disclosure relates to a membrane filter for water and wastewater treatment including a membrane filter, hydrophilic polymers formed on the membrane filter; and quorum quenching microorganisms cross-linked with the membrane filter by the hydrophilic polymer. The quorum quenching microorganisms are attached to the surface of the membrane filter for water and wastewater treatment, resulting in a higher initial permeation pressure than a conventional membrane, but the quorum quenching microorganisms may effectively prevent the phenomenon of quorum sensing, allowing the formation of a biofilm, thereby improving the life of the membrane filter for water and wastewater treatment.
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公开(公告)号：US20240240839A1
公开(公告)日：2024-07-18
申请号：US18615905
申请日：2024-03-25
发明人： Bamdad Bahar
IPC分类号： F25B9/00 , B01D67/00 , B01D69/02 , B01D69/10 , B01D69/12 , B01D71/28 , B05D3/02 , B05D3/06 , C08G61/02 , C08J3/24 , C08J5/22 , C25B9/23 , F25B31/00
CPC分类号： F25B9/008 , B01D67/0006 , B01D67/00931 , B01D69/02 , B01D69/107 , B01D69/125 , B01D71/281 , B05D3/0254 , B05D3/067 , C08G61/02 , C08J3/24 , C08J5/2231 , C08J5/2256 , C25B9/23 , F25B9/002 , F25B31/00 , B01D2323/08 , B01D2323/30 , B01D2323/345 , B01D2323/36 , B01D2325/16 , B01D2325/42 , C08G2261/143 , C08G2261/146 , C08G2261/312 , C08G2261/3326 , C08G2261/516 , C08G2261/72 , C08J2325/16 , C08J2365/02 , Y02E60/36
摘要： An electrochemical compressor utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer. The compressor may be part of a refrigeration system that pumps the working fluid in a closed loop through a condenser and an evaporator.
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公开(公告)号：US20240238729A1
公开(公告)日：2024-07-18
申请号：US18564268
申请日：2022-05-24
发明人： Shuji NAKATSUKA
CPC分类号： B01D61/18 , B01D61/145 , B01D61/149 , B01D61/16 , B01D63/04 , B01D69/02 , B01D69/081 , C07K1/34 , C12M1/126 , B01D2311/04 , B01D2311/12 , B01D2311/165 , B01D2313/10 , B01D2313/12 , B01D2313/18 , B01D2313/201 , B01D2313/24 , B01D2313/28 , B01D2313/30 , B01D2315/10 , B01D2315/14 , B01D2325/0283 , B01D2325/20
摘要： [Object] To provide a method for isolating and purifying a minute useful substance. [Solution] Disclosed is a method for isolating and purifying a minute useful substance. The method includes filtering a liquid containing a minute useful substance through a hollow fiber membrane. The hollow fiber membrane has an inner diameter of 0.2 mm to 1.4 mm and a molecular weight cut-off of 100000 to 1000000. The filtering includes a first filtration process of press-fitting the liquid containing the minute useful substance from a first opening on one end side of the hollow fiber membrane and filtering the liquid to separate the liquid into a permeate and a first concentrate, and a second filtration process of press-fitting the first concentrate from a second opening on the other end side of the hollow fiber membrane and filtering the first concentrate to separate the first concentrate into a permeate and a second concentrate. A concentrate is produced in which a concentration of the minute useful substance is increased by filtration in which the first filtration process and the second filtration process are alternately performed a plurality of times at a membrane surface velocity of 0.3 m/sec to 2 m/sec.
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公开(公告)号：US20240238728A1
公开(公告)日：2024-07-18
申请号：US18562135
申请日：2022-05-24
IPC分类号： B01D61/14 , B01D63/04 , B01D69/02 , B01D69/08 , C12N5/0775
CPC分类号： B01D61/1471 , B01D63/04 , B01D69/02 , B01D69/08 , C12N5/0667 , B01D2325/02833 , B01D2325/02834 , B01D2325/34
摘要： [Object]
To provide an isolation and purification method for isolating and purifying extracellular vesicles.
[Solution]
An isolation and purification method of extracellular vesicles is disclosed. A hollow fiber membrane has an inner diameter of 0.2 mm to 1.4 mm and a molecular weight cut-off of 100000 to 1000000. Filtering includes a first filtration process of press-fitting the culture supernatant of the mesenchymal stem cells from a first opening on one end side of the hollow fiber membrane and filtering the culture supernatant to separate the culture supernatant into a permeate and a first concentrate, and a second filtration process of press-fitting the first concentrate from a second opening on the other end side of the hollow fiber membrane and filtering the first concentrate to separate the first concentrate into a permeate and a second concentrate. A concentrate is produced in which a concentration of the extracellular vesicles is increased by alternating tangential flow filtration in which the first filtration process and the second filtration process are alternately performed a plurality of times. A membrane surface velocity in the first filtration process and the second filtration process is 0.3 m/sec to 2 m/sec.-
公开(公告)号：US20240226814A1
公开(公告)日：2024-07-11
申请号：US18615108
申请日：2024-03-25
申请人： Celgard, LLC , Entegris, Inc.
发明人： Eric R. White , Sina Bonyadi , Vinay Kalyani
CPC分类号： B01D69/02 , B01D61/027 , B01D61/145 , B01D69/1216 , B01D71/261 , B01D71/262 , B01D2325/02832 , B01D2325/02833 , B01D2325/04 , B01D2325/36
摘要： A dry-process microporous membrane for filtration, wherein at least one layer of the membrane has an average pore size less than 0.035 microns, preferably between about 0.010 microns to about 0.020 microns, and a thickness less than 14 microns. The membrane may be used in an ultra-filtration or nano-filtration process. The membrane exhibits high dimensional stability.
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18.发明公开公开(公告)号：US20240226802A1
公开(公告)日：2024-07-11
申请号：US18410456
申请日：2024-01-11
发明人： Yuepeng Zhang , Jungkuk Lee , Wei Chen , Shiyu Hu , Andrew Erwin , Feng Gao
IPC分类号： B01D53/22 , B01D67/00 , B01D69/02 , B01D69/12 , B01D69/14 , B01D71/38 , B01D71/68 , B01D71/70 , B01D71/82
CPC分类号： B01D53/228 , B01D67/00791 , B01D67/00793 , B01D69/02 , B01D69/12 , B01D69/1216 , B01D69/14111 , B01D69/142 , B01D69/147 , B01D69/148 , B01D71/381 , B01D71/68 , B01D71/701 , B01D71/82 , B01D2257/504 , B01D2257/80 , B01D2323/36 , B01D2325/022 , B01D2325/04 , B01D2325/12
摘要： A CO2 separation membrane can include a CO2-philic layer comprising one or more mobile CO2 carriers and one or more immobile CO2 carriers and a blended CO2-permeable and CO2-selective matrix that hosts the immobile or mobile CO2 carriers and porous nanostructures that adsorb water vapors. The CO2-philic layer can be disposed upstream of the CO2-permeance layer such that a flow of source gas to be separate enters the membrane from a feed side at which the CO2-philic layer is present and CO2 exits the membrane at a permeate side after passing through both the CO2-philic layer and the CO2-permeance layer.
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公开(公告)号：US20240216869A1
公开(公告)日：2024-07-04
申请号：US18602169
申请日：2024-03-12
发明人： Georges Belfort , Joel L. Plawsky , Corey Christopher Woodcock , Mirco Sorci , Dustin J. andersen
CPC分类号： B01D65/10 , B01D61/147 , B01D69/02 , B01J20/2804 , G01N15/08 , B01D2325/0283 , B01D2325/06 , B01D2325/36 , G01N2015/084 , G01N2015/086
摘要： A method of assessing a membrane includes calculating fluid dynamic characteristics of at least one of a membrane and a material to be passed through the membrane, the membrane includes a plurality of rows and a plurality of teardrop structures arranged in the plurality of rows, the material includes particles; obtaining characteristic of at least one force acting on the particles of the material to be passed through the membrane due to the interaction between the particles and the membrane, the at least one force being an intermolecular force; and combining the calculated fluid dynamic characteristic and the obtained characteristics to assess the flow of the material through the membrane. In some embodiments, the teardrop structures in each row are arranged at substantially the same angle with respect to an anticipated direction of flow through the membrane.
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公开(公告)号：US12023633B2
公开(公告)日：2024-07-02
申请号：US16640791
申请日：2018-08-21
发明人： W. S. Winston Ho , Dongzhu Wu , Yang Han
IPC分类号： B01D53/22 , B01D67/00 , B01D69/02 , B01D69/10 , B01D69/12 , B01D69/14 , B01D71/02 , B01D71/44 , B01D71/60 , B01D71/68 , B01D71/82
CPC分类号： B01D71/82 , B01D53/228 , B01D67/00793 , B01D69/02 , B01D69/107 , B01D69/1216 , B01D69/125 , B01D69/148 , B01D71/0212 , B01D71/441 , B01D71/601 , B01D71/68 , B01D2256/10 , B01D2256/16 , B01D2256/20 , B01D2257/2045 , B01D2257/304 , B01D2257/504 , B01D2323/02 , B01D2323/30 , B01D2325/20
摘要： Membranes, methods of making the membranes, and methods of using the membranes are described herein. The membranes can comprise a support layer, and a selective polymer layer disposed on the support layer. In some cases, the support layer can comprise a gas permeable polymer and hydrophilic additive dispersed within the gas permeable polymer. In some cases, the selective polymer layer can comprise a selective polymer matrix and carbon nanotubes dispersed within the selective polymer matrix. The membranes can exhibit selective permeability to gases. As such, the membranes can be for the selective removal of carbon dioxide and/or hydrogen sulfide from hydrogen and/or nitrogen.
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