公开(公告)号：US5057641A

公开(公告)日：1991-10-15

申请号：US506721

申请日：1990-04-09

申请人： Ronald J. Valus ,  Reza Eshraghi ,  Alexander E. Velikoff ,  James C. Davis

发明人： Ronald J. Valus ,  Reza Eshraghi ,  Alexander E. Velikoff ,  James C. Davis

IPC分类号： B01D53/22

CPC分类号： B01D53/22 ,  B01D63/02 ,  B01D2313/22 ,  B01D2313/38

摘要： The subject invention relates to a process for the selective separation of at least one component of a gaseous feedstream comprising passing the feedstream containing the component through a separation unit, the separation unit containing a porous membrane having a feed side and a permeate side, and a pore size of from about 10 Angstroms to about 200 Angstroms, and having disposed in the pores of the porous membrane a facilitator liquid comprising a carrier dissolved in a suitable solvent, including:a) dissolving the component in the facilitator liquid on the feed side of the porous membrane at the feed gas/membrane interface;b) forming a component-carrier complex;c) diffusing the complex to the permeate side of the porous membrane; andd) releasing the component from the carrier.The invention further relates to a membrane for the selective separation of at least one component of a gaseous feedstream comprising a porous membrane, having pores of from about 10 Angstroms to about 200 Angstroms, the pores containing a facilitator liquid having an affinity for the component to be selectively separated, the membrane being capable of operating at a transmembrane pressure of about 100 psig to about 300 psig.The subject invention also relates to use of the above-identified process and membrane for the separation of vapor phase olefins from olefin-containing feed streams.

公开(公告)号：US4634686A

公开(公告)日：1987-01-06

申请号：US729594

申请日：1985-05-02

申请人： Michael J. Desmond ,  Frederick Pesa ,  Reza Eshraghi

发明人： Michael J. Desmond ,  Frederick Pesa ,  Reza Eshraghi

IPC分类号： B01J29/04 ,  C01B33/20

CPC分类号： B01J29/04

摘要： A yttrium-silicate molecular sieve is disclosed which comprises a complex represented in terms of mole ratios of oxides as follows:aA.sub.2 O:Y.sub.2 O.sub.3 :bSiO.sub.2 :cH.sub.2 Owherein A is an alkali metal; a is a number ranging from about 0.5 to about 20; b is a number ranging from about 2 to about 400; and c is a number ranging from about 1 to about 500.

摘要翻译： 公开了一种钇硅酸盐分子筛，其包含以下列氧化物摩尔比表示的络合物：aA 2 O：Y 2 O 3 :bSiO 2 :cH 2 O其中A为碱金属; a为约0.5至约20的数; b为约2至约400; 且c为约1至约500的数。

公开(公告)号：US4486397A

公开(公告)日：1984-12-04

申请号：US565998

申请日：1983-12-27

申请人： Reza Eshraghi ,  Frederick A. Pesa ,  Mike J. Desmond

发明人： Reza Eshraghi ,  Frederick A. Pesa ,  Mike J. Desmond

IPC分类号： B01J39/12 ,  C01B39/54 ,  C01B25/36

CPC分类号： B01J39/12 ,  C01B39/54

摘要： Crystalline Group IIIB metallophosphates are provided herein having a composition in terms of mole ratios of oxides in the synthesized state of:X(M'.sub.2 O):Y(M.sub.2 O.sub.3):Z(P.sub.2 O.sub.5):nH.sub.2 O (I)whereinM' is an alkali metal;M is a Group IIB metal;x/y is a number from about 1.1 to about 1.9;z/y is a number from about 1 to about 1.9n/y is a number from about 0 to about 8.Also provided is the use of these metallophosphates as ion exchange materials.

摘要翻译： 本文提供的结晶IIIB族金属磷酸盐具有以下合成状态的氧化物的摩尔比的组成：X（M'2O）：Y（M2O3）：Z（P2O5）：nH2O（I）其中M'是碱 金属; M是IIB族金属; x / y是约1.1至约1.9的数; z / y为约1至约1.9的数，n / y为约0至约8的数。还提供了这些金属磷酸盐作为离子交换材料的用途。