Title:
調製中に固体臭素化難燃剤の純度を増加させるための方法
Document Type and Number:
Japanese Patent JP2011506327
Kind Code:
A
Abstract:
Processes for preparing brominated aromatic flame retardant having a reduced content of occluded free bromine are described. The processes comprise subdividing, during bromination of an aromatic compound, solid particles that form in a bromination reaction mixture in which an excess of liquid bromine and a Lewis acid bromination catalyst are present, said subdividing taking place within the confines of said reaction mixture. Subdivision is effected by grinding, milling, or sonication.
Inventors:
Hussein, Sadat
Matsuk, Arthur Gee
Matsuk, Arthur Gee
Application Number:
JP2010536985A
Publication Date:
March 03, 2011
Filing Date:
November 24, 2008
Export Citation:
Assignee:
Albemarle Corporation
International Classes:
C07C17/12; C07C25/18; C07C41/22; C07C43/29; C09K21/08; C07B61/00
Attorney, Agent or Firm:
Patent business corporation Odashima patent office