Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing
Patent
1976-04-05
1978-09-19
McCarthy, Helen M.
Compositions: coating or plastic
Coating or plastic compositions
Proteinaceous material containing
106103, 432106, C04B 744
Patent
active
041151364
ABSTRACT:
A method is disclosed for burning alkaline raw materials in an inventive rotary kiln plant. According to the method, cold atmospheric air is introduced tangentially into a circular chamber mounted either within, or adjacent to, the raw material inlet end of the kiln such that a circulating stream of cold air is produced in the chamber around a stream of exhaust gases passing from the kiln to the chamber. A part of the exhaust gases are thereby cooled by the cold air, and alkali vapors therein are condensed out of, and onto, dust particles in the exhaust gases. The alkaline-coated dust particles are thus subsequently discharged from the chamber. The invention also relates to a rotary kiln plant for practicing the inventive method.
REFERENCES:
patent: 3212764 (1965-10-01), Muller et al.
patent: 3692287 (1972-09-01), Kohl et al.
patent: 3887388 (1975-06-01), Christiansen
patent: 3923536 (1975-12-01), Kobayashi
patent: 4043746 (1977-08-01), Ritzmann
Kirk-Othmer-Encyclopedia of Chemical Technology-2nd ed. vol. 4, p. 785 and vol. 10, pp. 292-293.
F. L. Smidth & Co.
McCarthy Helen M.
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