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Patent No: CA2474338 [Canada] Application No: CA20022474338
Title: Preparation of non-hazardous brominating reagents
Issue Date: 20-07-2010 File Date: 25-01-2002
Inventor(s): Pushpito Kumar Ghosh; Ramachandraiah Gadde; Aditya Shantibhai Mehta; Adimurthy Subbarayappa; Ashok Dayabhai Jethva; Sanjay Shambubhai Vaghela
IPC Classification: B01J 8/02, B01J 8/04, C01B11/20, C01B7/09, C01B9/04, C01C1/04, C01D3/10, C07B39/00, C07C 17/02, C07C 17/08, C07C 17/12, C07C 22/04, C07C 231/12, C07C 233/15, C07C 29/152, C07C37/62, C07C39/27, C07C39/367
Abstract: The present invention relates to a non-hazardous brominating reagent from an aqueous alkaline bromine byproduct solution obtained from bromine recovery plant and containing 25 to 35 % bromine dissolved in aqueous lime or sodium hydroxide containing alkali bromide and alkali bromate mixture having bromide to bromate stoichiometric ratio in the range of 5:1 to 5.1:1 or 2:1 to 2.1:1 and a pH ranging between 8-12 and also relates to a method for borminating aromatic compounds by using the above brominating agent.
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Industrial Applications Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] CleanTech [Chemistry, Chemical Processes] Waste management [Environmental (Clean Tech)]