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US 5,510,534 AGranted
Process for reducing the nitrosamine content of herbicides
AssigneeAtanor S.A.
InventorsMaria D. C. Breglia De Belcoure, Marta M. D. C. Ruiz
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Abstract
The present invention is directed to a process for reducing the nitrosamine content in a herbicide derived from dinitroaniline. The herbicide is treated with an aqueous solution of alkaline or ammonium persulfate in a proportion of at least 0.5% w/w relative to the weight of the herbicide to form an aqueous suspension. The suspension is heated to at least 70.degree. C., and the herbicide is separated from the suspension.
Claims8
Process for reducing the nitrosamine content in a herbicide derived from dinitroaniline comprising:
- treating the herbicide with an aqueous solution of alkaline or ammonium persulfate in a proportion of at least 0.5% w/w relative to the weight of the herbicide to form an aqueous suspension;
- heating the suspension to at least 70.degree. C.;
- and
- separating the herbicide from the suspension.
1 more element
Dependencies are inferred from the claim text.