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Title: Pressure induced swelling in microporous materials

Patent ·
OSTI ID:1175826

A method for capturing specified materials which includes contacting a microporous material with a hydrostatic fluid having at least one specified material carried therein, under pressure which structurally distorts the lattice sufficiently to permit entry of the at least one specified material. The microporous material is capable of undergoing a temporary structural distortion which alters resting lattice dimensions under increased ambient pressure and at least partially returning to rest lattice dimensions when returned to ambient pressure. The pressure of the fluid is then reduced to permit return to at least partial resting lattice dimension while the at least one specified material is therein. By this method, at least one specified material is captured in the microporous material to form a modified microporous material.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Number(s):
7,074,386
Application Number:
10/303,169
OSTI ID:
1175826
Country of Publication:
United States
Language:
English

References (6)

Non-framework cation migration and irreversible pressure-induced hydration in a zeolite journal December 2002
Phase Transition of Zeolite RHO at High-Pressure journal August 2001
Pressure-Induced Volume Expansion of Zeolites in the Natrolite Family journal May 2002
Catalysis by crystalline aluminosilicates: Characterization of intermediate pore-size zeolites by the ?Constraint Index? journal January 1981
First Structural Investigation of a Super-Hydrated Zeolite journal December 2001
Pressure-enhanced molecular self-diffusion in microporous solids journal January 2001

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