Process and apparatus for distributing cold ammonia

Details Process and apparatus for distributing cold ammonia Process and apparatus for distributing cold ammonia

1977-04-11

1980-05-13

Burr, Edgar S.

Planting

Drilling and broadcasting

Main and auxiliary frame machines

111 7, A01C 2302

Patent

active

042022835

ABSTRACT:
An initial stream of cold liquid ammonia at substantially ambient or atmospheric pressure is divided into a plurality of smaller streams by directing the initial stream downward against a substantially horizontal and substantially flat surface, the axis of the initial stream being substantially orthogonal to the plane of the flat surface. The cold liquid ammonia is preferably produced by directing pressurized liquid ammonia into an expansion chamber to produce a mixture of cold liquid and gaseous ammonia at substantially ambient or atmospheric pressure and then separating the cold liquid ammonia from the cold gaseous ammonia. The divided cold liquid ammonia is preferably applied by a plurality of spaced conduits to the soil where the cold, liquid ammonia is then covered by additional soil by means of a field cultivator to prevent loss of ammonia to the atmosphere.

REFERENCES:
patent: 2650556 (1953-09-01), Turner
patent: 2857863 (1958-10-01), Jessen
patent: 3139848 (1964-07-01), Welty
patent: 3326152 (1967-06-01), Frantzen
patent: 3413940 (1968-12-01), Uissers
patent: 3978681 (1976-09-01), Kjelgaard et al.
patent: 4069029 (1978-01-01), Hudson

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