04964889 is referenced by 78 patents and cites 17 patents.

Gases having molecular dimensions equal to or smaller than nitrogen are selectively adsorbed and separated from other gases having molecular dimensions equal to or larger than methane using a clinoptilolite molecular sieve that contains magnesium cations. The clinoptilolite molecular sieves of the present invention can be ion-exchanged with magnesium cations and optionally with other cations such as lithium, sodium, potassium, calcium, barium, strontium, zinc, copper, cobalt, iron and manganese to produce the desired separation characteristics. Processes are disclosed for separating gases by adsorbing at an elevated pressure and regenerating, or desorbing, by reducing the pressure. Methods for the preparation of a magnesium-exchanged clinoptilolite are disclosed.

Title
Selective adsorption on magnesium-containing clinoptilolites
Application Number
7/445502
Publication Number
4964889
Application Date
December 4, 1989
Publication Date
October 23, 1990
Inventor
Chien Chung Chao
Millwood
NY, US
Agent
Warren K Volles
John G Tolomei
Thomas K McBride
Assignee
UOP
IL, US
IPC
B01D 53/04
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