Methods for the production of ammonia from urea and/or...

Details Methods for the production of ammonia from urea and/or... Methods for the production of ammonia from urea and/or...

2007-05-22

2007-05-22

Langel, Wayne A. (Department: 1754)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S239100, C423S358000

Reexamination Certificate

active

10662762

ABSTRACT:
This patent describes technology for generating ammonia from urea. The method is based on the hydrolysis of an aqueous solution of urea and/or biuret by heating under pressure to form a mixture of ammonia, carbon dioxide and water. The gas mixtures produced are useful for supplying ammonia at controlled pressure and rate of flow for many industrial applications without the risks and hazards associated with the transportation and on-site storage of ammonia, thereby providing a significant safety advantage over present industrial practice.

REFERENCES:
patent: 3862815 (1975-01-01), Mavrovic
patent: 3900554 (1975-08-01), Lyon
patent: 3922222 (1975-11-01), Van Moorsel
patent: 4087513 (1978-05-01), Schell
patent: 4168299 (1979-09-01), Schell
patent: 4220632 (1980-09-01), Pence et al.
patent: 4308385 (1981-12-01), Goorden
patent: 4327068 (1982-04-01), Lagana et al.
patent: 4410503 (1983-10-01), Van Nassau et al.
patent: 4533364 (1985-08-01), Altman et al.
patent: 4652678 (1987-03-01), Douwes
patent: 5034030 (1991-07-01), Miller et al.
patent: 5096599 (1992-03-01), Granelli
patent: 5098680 (1992-03-01), Fellows et al.
patent: 5240688 (1993-08-01), von Harpe et al.
patent: 5252308 (1993-10-01), Young
patent: 5281403 (1994-01-01), Jones
patent: 5399325 (1995-03-01), von Harpe et al.
patent: 5543123 (1996-08-01), Hofmann et al.
patent: 5567226 (1996-10-01), Lookman et al.
patent: 5827490 (1998-10-01), Jones
patent: 5985224 (1999-11-01), Lagana
patent: 6077491 (2000-06-01), Cooper et al.
patent: 6093380 (2000-07-01), Lagana et al.
patent: 6322762 (2001-11-01), Cooper et al.
patent: 6506350 (2003-01-01), Cooper et al.
patent: 6730280 (2004-05-01), Cooper et al.
patent: 23 62 887 (1975-06-01), None
patent: 202 537 (1983-09-01), None
patent: A-0 487 886 (1992-06-01), None
patent: 08-057258 (1996-03-01), None
patent: 08-071372 (1996-03-01), None
patent: WO94/13391 (1994-06-01), None
Patent Abstracts of Japan vol. 15, No. 031 (C-0798), Jan. 24, 1991 & JP 02 268811 A (Hitachi Zosen Corp), Nov. 2, 1990.

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