Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1987-09-30
1990-12-11
Lieberman, Paul
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544358, 544402, 564479, 564480, C07C20900
Patent
active
049772660
ABSTRACT:
A continuously generated alkyleneamines producers composition comprising, based on 100% of the moles of the composition and exclusive of any MEA and water present,
(a) about 15 to about 50 mole % AEEA,
(b) about 15 to about 55 mole % EDA,
(c) about 10 to about 20 mole % DETA,
(d) about 5 to about 20 mole % of the combination of PIP, AEP and HEP,
(e) about 3 to about 10 mole % of one or more of TETAs and TEPAs,
(f) less than about 1 mole % of other polyalkylene polyamines,
(g) an DETA to AEEA mole ratio less than 0.77, and
(h) an EDA to AEEA mole ratio less than 8;
and a process of manufacturing the same, which comprises feeding hydrogen, ammonia and MEA to a reaction zone containing a fixed bed of a reductive amination catalyst, wherein the hydrogen comprises about 20 to about 60 mole percent of the feed in the reaction zone and the mole ratio of ammonia to MEA is about 1 to about 5, the temperature of the reaction zone is about 120.degree. C. to about 300.degree. C., the pressure of the reaction zone is about 400 to about 1400 psig., the conversion of MEA is about 20 to about 45 weight percent, and recovering said producers composition from the reaction zone.
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Barnes, C. M. et al., Ind. Eng. Chem. Prod. Res. Dev. 1981; 20, 399-407.
Burgess Lloyd M.
Gibson Charles A.
Coon Gerald L.
Lieberman Paul
Skane Christine A.
Union Carbide Chemicals and Plastics Company Inc.
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