Process for treating product of radiation treatment of ammonia-a

Details Process for treating product of radiation treatment of ammonia-a Process for treating product of radiation treatment of ammonia-a

1989-05-09

1990-08-28

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Inorganic material

71 60, 423376, 423235D, 2041573, 20415777, C05C 100, C05C 102, C05C 1100

Patent

active

049522310

ABSTRACT:
A solid product which comprises ammonium sulfate and ammonium nitrate and which contains a sulfamic acid compound is produced when an effluent gas having ammonia added thereto is irradiated with a radiation to thereby desulfurize and denitrate the effluent gas comprising SO.sub.x, NO.sub.x and CO, but the CO gas content being less than ten times the concentration of SO.sub.x. It is possible to remove the noxious sulfamic acid compound from the above-described product while preventing decomposition of the ammonium nitrate in the product which is useful as a fertilizer ingredient by heating the product at a temperature of from 130.degree. C. to 250.degree. C., particularly from 180.degree. C. to 250.degree. C.

REFERENCES:
patent: 3869362 (1975-03-01), Machi et al.
patent: 3981815 (1976-09-01), Taniguchi et al.
CA 104(10):71150a, "Sulfur . . . Smoke", Frank et al., 1985.
CA 94(6):35642d, "Treatment . . . beams", Nippon, 1980.
CA 89(24):203434e, "Treatment . . . oxides", Sawada, 1978.
CA 88(26):196884a, "Ammonium . . . beam", Kimura, 1977.
CA 73(2):9387w, "Radiation . . . systems", Kersulis et al., 1970.
Chemical Engineering Progress, vol. 81, No. 6, Jun. 1985, pp. 30-36, New York, U.S.; N. W. Frank et al., "SO2/NOx: a natural resource should not go up in smoke".
Chemical Abstracts, vol. 98, 1983, p. 664, abstract No. 136597f, Columbus OH, U.S.: I. K. Thege: "DSC investigation of the thermal behavior of (NH4)2SO4, NH4HSO4 and ammonium sulfamate (NH4NH2SO3)", & Thermochin. Acta 1983, 60(2), 149-159.

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