Gas separation material using metal complex and gas separation method
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United States of America Patent
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Feb 28, 2017
Grant Date -
Nov 19, 2015
app pub date -
Dec 16, 2013
filing date -
Dec 26, 2012
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Abstract
A separation material and method for separating and recovering a target gas from a mixed gas including the target gas and a hydrocarbon gas that has the same number of carbon atoms as the target gas, the target gas being a hydrocarbon gas having 2 or 4 carbon atoms and a carbon-carbon double bond. This gas separation material includes: a metal complex containing a 2,3-pyrazinedicarboxylic acid; an ion of at least one type of metal (M); and an organic ligand (B) capable of bidentate coordination to the metal ion represented by general formula (1) or general formula (2), where (M), formula (1) and formula (2) are as defined herein. The metal complex has a composition represented by M2+2A2−2B where M2+ is the ion of the metal (M), A2− is a 2,3-pyrazinedicarboxylate dianion and B is the organic ligand (B) capable of bidentate coordination to the metal ion.
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