Process for preparation of non-hazardous brominating agent

Details Process for preparation of non-hazardous brominating agent Process for preparation of non-hazardous brominating agent

2003-05-30

2008-12-02

Nguyen, Ngoc-Yen M (Department: 1793)

Chemistry of inorganic compounds

Halogen or compound thereof

Ternary compound

C423S472000, C423S499100, C252S182160, C252S187200

Reexamination Certificate

active

07459139

ABSTRACT:
A cost-effective process is described for the preparation of a stable and non-hazardous brominating reagent containing 2:1 stoichiometric ratio of alkali bromide to alkali bromate. The process comprises of reacting alkaline bromine intermediate mixture, obtained from bromine recovery plant, with chlorine gas in the presence of a strong alkali to oxidize the bromide ions to bromate ions. This brominating reagent is useful for the bromination of aromatic compounds by substitutions.

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patent: 84830 (1995-01-01), None
patent: 02 057207 (2002-07-01), None
English Abstract of IL 84830 dated Jan. 24, 1995 Database WPI Section CH, Week 199517 Derwent Publications (XP 002268 916).

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