Chemistry of inorganic compounds – Nitrogen or compound thereof – Oxygen containing
Patent
1981-12-18
1983-07-12
Vertiz, O. R.
Chemistry of inorganic compounds
Nitrogen or compound thereof
Oxygen containing
C01B 21093, C01B 21086
Patent
active
043930336
ABSTRACT:
Ammonium sulfamate is prepared continuously, starting from ammonia and sulfur trioxide, by introducing liquid sulfur trioxide and liquid ammonia in a molar ratio NH.sub.3 /SO.sub.3 greater than 2.0:1 into a pressure reactor containing molten reaction product. Excess ammonia is removed continuously from the reactor. The liquid sulfur trioxide is introduced into the melt, while the liquid ammonia is fed onto the surface of the melt.
REFERENCES:
patent: 3661516 (1972-05-01), Hofmeister
patent: 4261963 (1981-04-01), Munster
Graser Reinhold
Konrad Rolf
Metzger Adolf
Hoechst Aktiengesellschaft
Langel Wayne A.
Vertiz O. R.
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