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Selective adsorption on magnesium-containing clinoptilolites

  • US 4,964,889 A
  • Filed: 12/04/1989
  • Issued: 10/23/1990
  • Est. Priority Date: 12/04/1989
  • Status: Expired due to Term
First Claim
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1. A process for separating a first gas containing molecules having molecular dimensions equal to or smaller than nitrogen from a feed containing mixtures thereof with at least one other gas containing molecules having molecular dimensions equal to or larger than methane, which comprises contacting the feed with a clinoptilolite molecular sieve that has a magnesium cation content that is sufficient to cause the first gas to be selectively absorbed on the clinoptilolite molecular sieve, said magnesium cation content being at least about 5 equivalent percent of the ion-exchangeable cations in the clinoptilolite molecular sieve, and recovering an effluent having a reduced amount of the first gas relative to the feed.

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