Concentrating evaporators – Processes – Film
Patent
1994-01-12
1994-11-15
Manoharan, Virginia
Concentrating evaporators
Processes
Film
159 161, 203 89, 203 49, 423395, B01D 114
Patent
active
053645006
ABSTRACT:
A silver nitrate feed solution containing nitrites and nitric acid is treated to produce a low-nitrite silver nitrate product solution. In the process, the temperature of the feed solution is established in the range of from about 80.degree. C. to about the boiling point of the feed solution. The feed solution is introduced into a vessel having a stripping zone containing a contacting element and is dispersed over the contacting element. The feed solution is flowed counter to and intimately contacted in the stripping zone with a motive gas to strip nitrites from solution and form a low-nitrite silver nitrate product solution.
REFERENCES:
patent: 1039325 (1912-09-01), Schonherr et al.
patent: 1581519 (1952-01-01), Critchley
patent: 2185580 (1940-01-01), Beekhuis, Jr.
patent: 2189363 (1990-02-01), Kalous
patent: 2566197 (1951-08-01), Hass et al.
patent: 3099531 (1963-07-01), Boynton
patent: 3576606 (1971-04-01), De Vry
patent: 4011298 (1977-03-01), Fukui et al.
patent: 4031187 (1977-06-01), Barba et al.
patent: 4062928 (1977-12-01), Applegate et al.
patent: 4312852 (1982-01-01), Dewey
patent: 4330437 (1982-05-01), Krueger
patent: 4419333 (1983-12-01), Reus et al.
patent: 4426364 (1984-01-01), Cooper
patent: 4504370 (1985-03-01), Lindner et al.
patent: 4603036 (1986-07-01), Botton et al.
patent: 4874485 (1989-10-01), Steele
patent: 4925643 (1990-05-01), Steele
patent: 5000928 (1991-03-01), White
Perry's Chemical Engineer's Handbook, 6th Ed., Section 18, "Liquid Gas Systems", Fair et al, Section 18, pp. 1-48, 1984.
Buesing Robert J.
Chefalo Patrick M.
DiStefano Gary M.
Naujokas Andrius A.
Popham Stephen M.
Eastman Kodak Company
Manoharan Virginia
Snee, III Charles E.
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