Separation of nitrogen from mixtures thereof with methane utilizing barium exchanged ETS-4

• US 5,989,316 A
• Filed: 12/22/1997
• Issued: 11/23/1999
• Est. Priority Date: 12/22/1997
• Status: Expired due to Fees

• Current Assignee: Engelhard Corporation (BASF SE)
• Original Assignee: Engelhard Corporation (BASF SE)
• Inventors: Blosser, Patrick W., Petrovic, Ivan, Kuznicki, Steven M., Bell, Valerie A.
• Primary Examiner(s): LANGEL, WAYNE A
• Application Number:
  US08/996,298
• Time in Patent Office: 701 Days
• Field of Search: 95/130, 95/326, 423/331
• US Class Current: 95/130
• CPC Class Codes: B01D 2253/106 Silica or silicates
• CPC Class Codes: B01D 2257/102 Nitrogen
• CPC Class Codes: B01D 2257/7022 Aliphatic hydrocarbons
• CPC Class Codes: B01D 53/02 by adsorption, e.g. preparative gas chromatography solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01
• CPC Class Codes: B01D 53/047 Pressure swing adsorption
• CPC Class Codes: B01J 20/183 Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
• CPC Class Codes: B01J 20/186 Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
• CPC Class Codes: B01J 20/2803 Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
• CPC Class Codes: B01J 20/28047 Gels
• CPC Class Codes: C01B 39/026 After-treatment

Abstract

Barium-exchanged ETS-4 shows particular utility in gas separation processes involving the separation of nitrogen from a mixture of the same with methane.

Claims

1. A process for the separation of nitrogen from a mixture of the same with methane which comprises contacting said mixture with a barium-exchanged ETS-4 wherein the barium represents at least 30% of the exchangeable cations.

2. A process for the separation of nitrogen from a mixture of the same with methane which comprises contacting said mixture with a barium-exchanged ETS-4 wherein barium represents at least 60% of the exchangeable ions.

3. A process for the separation of nitrogen from a mixture of the same with methane which comprises contacting said mixture with a barium-exchanged ETS-4 wherein barium represents at least 80% of the exchangeable ions.