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公开(公告)号:US08871140B2
公开(公告)日:2014-10-28
申请号:US13920999
申请日:2013-06-18
发明人: Churl-Hee Cho , Do-Kyung Kim , Jeong-Gu Yeo , Young-Soo Ahn , Dong-Kook Kim , Hong-Soo Kim
IPC分类号: C04B35/64 , C04B35/65 , B22F3/23 , C22C47/14 , C04B35/622 , C04B35/634 , C22C29/00 , D01D10/02 , B29C47/00 , C09D5/00 , D01F9/08 , C22C1/05 , B82Y30/00 , C22C29/12 , C22C29/16 , C22C29/02
CPC分类号: B29C47/0026 , B01D69/08 , B01D69/087 , B01D71/024 , B22F3/23 , B82Y30/00 , C04B35/62236 , C04B35/62272 , C04B35/62281 , C04B35/62295 , C04B35/634 , C04B2235/404 , C04B2235/421 , C04B2235/5284 , C09D5/00 , C22C1/058 , C22C29/00 , C22C29/02 , C22C29/12 , C22C29/16 , C22C47/14 , D01D10/02 , D01F9/08 , Y10T428/1369
摘要: Disclosed herein is a method of manufacturing inorganic hollow yarns, such as cermets, oxide-non oxide composites, poorly sinterable non-oxides, and the like, at low costs. The method includes preparing a composition comprising a self-propagating high temperature reactant, a polymer and a dispersant, wet-spinning the composition through a spinneret to form wet-spun yarns, washing and drying the wet-spun yarns to form polymer-self propagating high temperature reactant hollow yarns, and heat-treating the polymer-self propagating high temperature reactant hollow yarns to remove a polymeric component from the polymer-self propagating high temperature reactant hollow yarns while inducing self-propagating high temperature reaction of the self-propagating high temperature reactant to form inorganic hollow yarns. The composition comprises 45˜60 wt % of the self-propagating high temperature reactant, 6˜17 wt % of the polymer, 0.1˜4 wt % of the dispersant, and the balance of an organic solvent.
摘要翻译: 本文公开了以低成本制造无机中空丝的方法,例如金属陶瓷,氧化物非氧化物复合材料,不易烧结的非氧化物等。 该方法包括制备包含自蔓延高温反应物,聚合物和分散剂的组合物,通过喷丝头将组合物湿纺以形成湿纺丝,洗涤和干燥湿纺丝以形成聚合物自传播 高温反应物中空纱线,并热处理聚合物自蔓延高温反应物中空纱线,以从聚合物自传播的高温反应物中空纱线中除去聚合物组分,同时诱导自传播高自由度的高温反应 温度反应物形成无机中空纱线。 组合物包含45〜60重量%的自蔓延高温反应物,6〜17重量%的聚合物,0.1〜4重量%的分散剂和余量的有机溶剂。
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2.
公开(公告)号:US20150101985A1
公开(公告)日:2015-04-16
申请号:US14386034
申请日:2013-03-20
发明人: Jeong-Gu Yeo , Churl-Hee Cho
CPC分类号: B01D61/362 , B01D71/028 , C07C29/76 , C07C31/08
摘要: Disclosed herein are a method of preparing a NaA zeolite membrane for water/ethanol separation, and a method of separating water/ethanol using the same, wherein a water/ethanol mixture is separated by pervaporation using a NaA zeolite membrane employing a dual separation process, including: primary separation for increasing an ethanol concentration to 95˜97 wt % using a membrane having high water selectivity and low flux; and secondary separation for increasing the ethanol concentration to 97˜100 wt % using a membrane having low water selectivity and high flux, thereby obtaining excellent separation efficiency at comparatively low energy.
摘要翻译: 本文公开了一种制备用于水/乙醇分离的NaA沸石膜的方法,以及使用其分离水/乙醇的方法,其中通过使用双分离方法的NaA沸石膜通过渗透蒸发分离水/乙醇混合物, 包括:使用具有高水选择性和低通量的膜将乙醇浓度提高至95〜97重量%的一次分离; 使用具有低水选择性和高通量的膜将乙醇浓度提高至97〜100重量%的二次分离,从而在较低能量下获得优异的分离效率。
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