Chemistry of inorganic compounds – Nitrogen or compound thereof – Oxygen containing
Patent
1978-10-27
1980-12-16
Thomas, Earl C.
Chemistry of inorganic compounds
Nitrogen or compound thereof
Oxygen containing
C01B 2154
Patent
active
042397413
ABSTRACT:
Hydrazine sulfate having a relatively large particle diameter and a high purity is produced by hydrolysis of benzophenoneazines by sulfuric acid having a concentration of 75% by weight or less in an amount of 1.1 times by mole or more the stoichiometric amount in a very high conversion and a high yield with less operational loss.
REFERENCES:
patent: 2931707 (1960-04-01), Meyer et al.
Curtius and Rauterberg, Journal fur praktische Chemie, 44, 200 (1891).
Abe Mitsuo
Aoki Osamu
Aoki Yoshiyuki
Isshiki Tomiya
Kondo Takao
Langel Wayne A.
Mitsubishi Gas Chemical Company Inc.
Thomas Earl C.
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