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公开(公告)号：EP1062014A1
公开(公告)日：2000-12-27
申请号：EP99913251.7
申请日：1999-03-11
发明人： TEICH, Friedhelm , SCHELLING, Heiner , KÖSTER, Herbert , KRATZER, Horst , REICHERT, Wolfgang , GALL, Martin , ZIEGLER, Bernd
IPC分类号： B01D12/00 , C01B33/158
CPC分类号： F26B17/14 , B01D12/00 , B01J13/0091 , C01B33/158 , C01B33/1585 , F26B7/00 , F26B21/14 , Y02P20/544
摘要： A method for drying and producing microporous particles containing fluid. The fluid-containing particles that are to be dried are transported in the form of a moving-bed in a counter-flow to a drying fluid. When the pressure of the fluid becomes near critical or supercritical, the interfacial tension of said fluid is reduced, preferably to a value ranging from 0-1/10, especially from 0-1/20 of the interfacial tension at room temperature. The invention also relates to a method for the production of microporous, cross-linked particles by producing microporous fluid-containing particles, replacing the porous fluid contained in said particles with a fluid and by drying the particles containing the liquid. Fluid replacement and drying is carried out in a moving bed in a counterflow.
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公开(公告)号：EP0716641A1
公开(公告)日：1996-06-19
申请号：EP94926888.0
申请日：1994-08-25
摘要： Hydrophobic silicic acid aerogels are obtained by reacting a solution of water glass with an acid at a pH value from 7,5 to 11, by substantially freeing the thus obtained silicic acid hydrogel from ionic components by washing it with water or diluted aqueous solutions of inorganic bases, the pH value of the hydrogel being maintained in the 7,5 to 11 range, by expelling the aqueous phase contained in the hydrogel with an alcohol and by supercritically drying the thus obtained alcohol gel.
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公开(公告)号：EP0716641B1
公开(公告)日：1998-01-14
申请号：EP94926888.2
申请日：1994-08-25
IPC分类号： C01B33/158 , C04B30/00 , B01J21/08 , C08K3/36 , C08L21/00
摘要： Hydrophobic silicic acid aerogels are obtained by reacting a solution of water glass with an acid at a pH value from 7,5 to 11, by substantially freeing the thus obtained silicic acid hydrogel from ionic components by washing it with water or diluted aqueous solutions of inorganic bases, the pH value of the hydrogel being maintained in the 7,5 to 11 range, by expelling the aqueous phase contained in the hydrogel with an alcohol and by supercritically drying the thus obtained alcohol gel.
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公开(公告)号：EP1062181B1
公开(公告)日：2004-06-02
申请号：EP99915573.2
申请日：1999-03-11
发明人： TEICH, Friedhelm , SCHELLING, Heiner , KÖSTER, Herbert , KRATZER, Horst , REICHERT, Wolfgang , GALL, Martin , ZIEGLER, Bernd
IPC分类号： C01B33/00
CPC分类号： F26B7/00
摘要： The invention relates to a method for drying microporous particles containing fluid in which the heat required for increasing the temperature is supplied by means of convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, especially to 0 to 1/20, pertaining to the interfacial tension of the fluid at room temperature, by correspondingly increasing the temperature when the pressure of the fluid is at a near-critical to supercritical level. The invention also relates to a method for producing microporous, spatially cross-linked particles in which said drying method is applied. In addition, the invention relates to a device for carrying out the drying method. The device comprises a pressure vessel having an inner vessel and a pressure-carrying outer vessel. Said device also comprises suited measuring and regulating devices as well as pumping and heat exchange devices, whereby the inner vessel is provided for accommodating the particles which are to be dried. A gap is provided between the inner and outer vessels.
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公开(公告)号：EP1062014B1
公开(公告)日：2003-05-28
申请号：EP99913251.7
申请日：1999-03-11
发明人： TEICH, Friedhelm , SCHELLING, Heiner , KÖSTER, Herbert , KRATZER, Horst , REICHERT, Wolfgang , GALL, Martin , ZIEGLER, Bernd
IPC分类号： B01D12/00 , C01B33/158
CPC分类号： F26B17/14 , B01D12/00 , B01J13/0091 , C01B33/158 , C01B33/1585 , F26B7/00 , F26B21/14 , Y02P20/544
摘要： A method for drying and producing microporous particles containing fluid. The fluid-containing particles that are to be dried are transported in the form of a moving-bed in a counter-flow to a drying fluid. When the pressure of the fluid becomes near critical or supercritical, the interfacial tension of said fluid is reduced, preferably to a value ranging from 0-1/10, especially from 0-1/20 of the interfacial tension at room temperature. The invention also relates to a method for the production of microporous, cross-linked particles by producing microporous fluid-containing particles, replacing the porous fluid contained in said particles with a fluid and by drying the particles containing the liquid. Fluid replacement and drying is carried out in a moving bed in a counterflow.
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6.发明公开VERFAHREN ZUR TROCKNUNG UND HERSTELLUNG VON MIKROPORÖSEN TEILCHEN SOWIE EINE VORRICHTUNG ZUR TROCKNUNG 有权VERFAHREN ZUR TROCKNUNG UND HERSTELLUNG VONMIKROPORÖSENTEILCHEN SOWIE EINE VORRICHTUNG ZUR TROCKNUNG
公开(公告)号：EP1062181A2
公开(公告)日：2000-12-27
申请号：EP99915573.2
申请日：1999-03-11
发明人： TEICH, Friedhelm , SCHELLING, Heiner , KÖSTER, Herbert , KRATZER, Horst , REICHERT, Wolfgang , GALL, Martin , ZIEGLER, Bernd
IPC分类号： C01B33/00
CPC分类号： F26B7/00
摘要： The invention relates to a method for drying microporous particles containing fluid in which the heat required for increasing the temperature is supplied by means of convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, especially to 0 to 1/20, pertaining to the interfacial tension of the fluid at room temperature, by correspondingly increasing the temperature when the pressure of the fluid is at a near-critical to supercritical level. The invention also relates to a method for producing microporous, spatially cross-linked particles in which said drying method is applied. In addition, the invention relates to a device for carrying out the drying method. The device comprises a pressure vessel having an inner vessel and a pressure-carrying outer vessel. Said device also comprises suited measuring and regulating devices as well as pumping and heat exchange devices, whereby the inner vessel is provided for accommodating the particles which are to be dried. A gap is provided between the inner and outer vessels.
摘要翻译： 本发明涉及一种用于干燥含有流体的微孔颗粒的方法，其中通过减少流体的界面张力借助于对流供应升高温度所需的热量，优选为0至1/10，特别是0至1 / 如图20所示，涉及流体在室温下的界面张力，通过相应地增加流体压力对于超临界水平的压力时的温度。 本发明还涉及一种生产微孔，空间交联颗粒的方法，其中应用了所述干燥方法。 另外，本发明涉及用于执行该干燥方法的装置。 该装置包括具有内部容器和承压外部容器的压力容器。 所述装置还包括合适的测量和调节装置以及泵送和热交换装置，其中内容器被设置用于容纳待干燥的颗粒。 内部和外部容器之间提供间隙。
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