Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1982-01-18
1983-11-22
Doll, John
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
423223, 423228, 423229, 423232, 423234, 564476, 564477, 564508, C07C 9304, B01D 5354
Patent
active
044170750
ABSTRACT:
A novel class of di-secondary aminoethers of the general formula: ##STR1## are disclosed wherein R.sub.1 and R.sub.8 are each independently selected from the group consisting of primary alkyl having 1 to 8 carbon atoms and primary hydroxyalkyl having 2 to 8 carbon atoms, secondary alkyl and secondary hydroxyalkyl radicals having 3 to 8 carbon atoms, tertiary alkyl and tertiary hydroxyalkyl radicals having 4 to 8 carbon atoms, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are each independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.3 alkyl and hydroxyalkyl radicals, with the proviso that R.sub.2, R.sub.3, R.sub.6, and R.sub.7 are C.sub.1 -C.sub.4 alkyl or hydroxyalkyl radicals when R.sub.1 and R.sub.8 are primary alkyl or hydroxyalkyl radicals, and at least one of R.sub.2 or R.sub.3 and R.sub.6 or R.sub.7 are C.sub.1 to C.sub.3 alkyl or hydroxyalkyl radicals when R.sub.1 and R.sub.8 are secondary alkyl radicals, m, n and p are positive integers ranging from 2 to 4, and o is either zero or a positive integer ranging from 1 to 10. The compounds are useful in the selective removal of H.sub.2 S from gaseous mixtures containing H.sub.2 S and CO.sub.2.
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Doll John
Exxon Research and Engineering Co.
Halluin Albert P.
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