Chemistry: physical processes – Physical processes – Agglomerating
Patent
1992-01-27
1994-07-19
Straub, Gary P.
Chemistry: physical processes
Physical processes
Agglomerating
23313FB, 23302A, 23302R, 159 404, 159 481, 71 6405, 422145, 422202, 423545, 423553, 423DIG16, C01C 124
Patent
active
053305442
ABSTRACT:
The average size of ammonium sulfate crystals is increased by passing undersized ammonium sulfate crystals through a multistage apparatus in which the crystals are contacted with an aqueous ammonium sulfate spray in a first heated chamber to increase the average size of the crystals, the enlarged crystals thereafter passing through a second heated chamber to dry the enlarged crystals.
REFERENCES:
patent: 1266212 (1918-05-01), Capron
patent: 1919707 (1933-07-01), Adam et al.
patent: 2043067 (1936-06-01), Rumscheidt et al.
patent: 2092073 (1937-09-01), Jeltsch et al.
patent: 2099079 (1937-11-01), Rumscheidt et al.
patent: 2102107 (1937-12-01), Berkhoff, Jr.
patent: 2178082 (1939-10-01), Rayner
patent: 2226101 (1940-12-01), Ogden
patent: 2228742 (1941-01-01), Applebey
patent: 2368901 (1945-02-01), Tiddy
patent: 2423794 (1947-07-01), Otto
patent: 2424207 (1947-07-01), Otto
patent: 2599067 (1952-06-01), Otto
patent: 2631084 (1953-03-01), Robinson
patent: 2659659 (1953-11-01), Schmidl
patent: 2782097 (1957-02-01), Costolow
patent: 2795487 (1957-06-01), Otto
patent: 2805125 (1957-09-01), Van Ackeren
patent: 2874028 (1959-02-01), Ponchaud
patent: 2895800 (1959-07-01), Otto
patent: 3600818 (1971-08-01), Lang
patent: 3794099 (1974-02-01), Ganiaris
patent: 4057396 (1977-11-01), Matovich
patent: 4141316 (1979-02-01), Grun
patent: 4277253 (1981-07-01), Walter
patent: 4435341 (1984-03-01), Bechthold
patent: 4698913 (1987-10-01), Voll
patent: 4741807 (1988-05-01), Wilhelm
patent: 4859315 (1989-08-01), Bartholic
patent: 5032143 (1991-07-01), Ritakallio
patent: 5075138 (1991-12-01), Tanaka et al.
patent: 5120345 (1992-06-01), Kayaert et al.
Vragov, "Investigation of Ammonium Sulfate Crystallization in a Pseudo Liquified Layer", Sb. Nauch, Tr., Kuzbas, Politekh. Int., No. 26, 1970.
Postnikov et al., "Crystallization of Ammonium Sulfate in a Two-Circuit Device with a Circulating Suspension", Koksii Khimiya, No. 4 (Apr., 1983), pp. 24-27.
Parkash, "Residence Times of Crystals in a Fluidised Bed Crystalliser", Chemistry and Industry, pp. 919-920, Jun. 3, 1967.
Parkash et al., "Crystal Growth in Fluidised Beds", Indian Chemical Engineer, Jan. 1968, pp. 3-6.
Kramer Jonathan K.
Thomson Walter G.
BASF Corporation
Straub Gary P.
Vanoy Timothy C.
LandOfFree
Process and apparatus for increasing the size of ammonium sulfat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for increasing the size of ammonium sulfat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for increasing the size of ammonium sulfat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-517132