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公开(公告)号：US5573745A
公开(公告)日：1996-11-12
申请号：US241833
申请日：1994-05-12
申请人： Hong-Xin Li , Charles G. Coe , Thomas R. Gaffney , Yanliang Xiong , Johan A. Martens , Pierre A. Jacobs
发明人： Hong-Xin Li , Charles G. Coe , Thomas R. Gaffney , Yanliang Xiong , Johan A. Martens , Pierre A. Jacobs
CPC分类号： B01D53/02 , B01J20/18 , C01B13/027 , C01B21/0466 , C01B39/205 , B01D2253/104 , B01D2253/106 , B01D2253/311 , B01D53/047 , C01B2210/0046 , Y10S423/21 , Y10S95/902
摘要： The present invention is a composition, a synthesis of the composition and a method of using the composition for selectively adsorptively separating nitrogen from oxygen wherein the composition is a crystalline EMT with a Si/Al ratio less than 2.0 and a micropore volume determined in the sodium and/or potassium form of at least 0.20 cm.sup.3 /g and a lithium cation exchange of at least 80%, preferably including an intergrowth with a crystalline FAU structure, wherein the pure or intergrowth compositions have the chemical formula:M.sub.2/n O:X.sub.2 O.sub.3 :(2.0 to
摘要翻译： 本发明是一种组合物，该组合物的合成和一种使用该组合物选择性地从氧气中分离氮气的方法，其中该组合物是Si / Al比小于2.0的结晶EMT，在钠中测定的微孔体积 和/或钾形式为至少0.20cm 3 / g和至少80％的锂阳离子交换，优选包括与结晶FAU结构的共生体，其中纯或共生成分具有以下化学式：M2 / nO：X 2 O 3： （2.0〜4.0）SiO 2，其中M =一价或多价n价的金属阳离子，X选自铝，镓和硼，优选铝。
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公开(公告)号：US5098880A
公开(公告)日：1992-03-24
申请号：US575474
申请日：1990-08-30
CPC分类号： C01B13/0266 , B01J20/20 , C01B21/0461 , C01B23/00 , C01B2210/0046 , C01B2210/0082
摘要： A process is provided for making a modified carbon molecular sieve which is suitable for separating gases having different adsorption rates on the sieve. The process involves modifying a starting sieve support having a majority of micropores with an effective pore size of about 4.5 to 8 angstroms, with a two-step process in which the sieve is contacted with two different volatile carbon-containing organic compounds, preferably hydrocarbons, which have different molecular dimensions. The compound used in the first step is larger than that in the second step, so that the pore openings of the micropores of the support are narrowed successively in two distinct steps without filling the micropores themselves. The invention also discloses an improved carbon molecular sieve and the separation of gases, such as oxygen from nitrogen, by the use of this improved adsorbent.
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13.发明授权Process for the preparation of an improved chabazite for the purification of bulk gases 失效用于制备用于净化散装气体的改进的菱沸石的方法
公开(公告)号：US5026532A
公开(公告)日：1991-06-25
申请号：US334642
申请日：1989-04-06
申请人： Thomas R. Gaffney , Charles G. Coe
发明人： Thomas R. Gaffney , Charles G. Coe
CPC分类号： C01B39/48 , C01B21/0466 , C01B23/00 , C01B2210/0046
摘要： A process is provided for preparing a synthetic chabazite having a Si/Al ratio of 1.8 to 2.3 by mixing an alumina source, sodium hydroxide, potassium hydroxide, a TMA reagent at a ratio of (TMA).sub.2 O:Al.sub.2 O.sub.3 of 0.08 to 0.0001, and a silica source to form a gel, crystallizing the gel by heating at a temperature of from about 25.degree. to 150.degree. C. for at least one hour, and separating the resulting chabazite product.
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公开(公告)号：US4943304A
公开(公告)日：1990-07-24
申请号：US334668
申请日：1989-04-06
申请人： Charles G. Coe , Thomas R. Gaffney
发明人： Charles G. Coe , Thomas R. Gaffney
CPC分类号： C01B23/00 , B01J20/18 , C01B3/56 , C01B2203/043 , C01B2203/0465 , C01B2203/047 , C01B2203/048 , Y10S95/902
摘要： A process is provided for the selective adsorption of one or more minor constituents from a bulk gas stream using a chabazite in which the bulk gas is size excluded from the pore structure of the chabazite or the minor constituent to be separated has a heat of adsorption greater than that of the bulk gas and the process is carried out under conditions such that the partial pressure of the minor constituent is in the linear low pressure region of the isotherm for the minor constituent and the adsorbent is a dehydrated divalent cation-containing chabazite having a Si/Al ratio of 1.8 to 2.7, a cation sitting, f.sub.s, of 0.7 to 1, and a cation distribution, f.sub.d, of 0.62 to 1.
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公开(公告)号：US4925460A
公开(公告)日：1990-05-15
申请号：US383128
申请日：1989-07-20
IPC分类号： B01D53/02 , B01D53/04 , B01D53/047 , B01J20/18 , C01B3/56 , C01B13/02 , C01B21/04 , C01B23/00 , C07C7/13 , C07C9/04
CPC分类号： B01D53/02 , B01J20/186 , B01D2253/108 , B01D2253/1085 , B01D2256/12 , B01D2257/102 , B01D2257/108 , B01D2257/11 , B01D53/047 , B01D53/0476
摘要： An improved adsorbent for gas separation comprising a lithium exchanged chabazite having a Si/Al ratio between 2.1 and 2.8 wherein at least 65% of the exchangeable ion capacity is in the lithium form.
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