Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including internal mixing or stirring means
Patent
1981-08-21
1983-01-25
Chiesa, Richard L.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including internal mixing or stirring means
239472, 239501, 261 76, 261 79A, 261DIG75, 366338, 423310, B01F 304
Patent
active
043703046
ABSTRACT:
Ammonium orthophosphate products are prepared by reacting ammonia and phosphoric acid together at high speed under vigorous mixing conditions by spraying the reactants through a two-phase, dual coaxial mixer/sprayer and separately controlling the supply and axial outflow rate of the phosphoric acid at 1 to 10 m/sec. and the outflow rate of ammonia at 200 to 1000 m/sec. (N.T.P.). Thorough mixing and a homogeneous product is obtained by directing the outflow spray into a coaxial cylindrical reaction chamber of a specified size with respect to the diameter of the outermost duct of the sprayer/mixer. The product may be granulated on a moving bed of granules and adjusted in respect of the NH.sub.3 to H.sub.3 PO.sub.4 content by changing the concentration of the phosphoric acid and/or supplying additional ammonia to the granulation bed.
REFERENCES:
patent: 1183098 (1916-05-01), Merrell et al.
patent: 2183561 (1939-12-01), Hamblin
patent: 2411186 (1946-11-01), Boeckeler
patent: 2990165 (1961-06-01), Joseph
patent: 3050374 (1962-08-01), Burt et al.
patent: 3833719 (1974-09-01), Kuerten et al.
patent: 3984323 (1976-10-01), Evens
patent: 4179222 (1979-12-01), Strom et al.
Hendriks Petrus F. A. M.
Hoek Cornelis
Jansen Arie
van den Berg Willem B.
Chiesa Richard L.
Unie Van Kunstmestfabrieken, B.V.
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