Novel washing technique for improving thermal stability of hexabromocyclododecane

• Main Authors: ZHANG TIANLIN, JIANG PEIQIN, LI XINHUA
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2010
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention provides a new washing process for increasing the heat stability of hexabromocyclododecane, is to combine a washing debromination process in a produce process of hexabromocyclododecane, and makes bromization fatty acid barium salt, magnesium salt or calcium salt with a thermal stabilizer action and a fire retardant function be infiltrated into inner of hexabromocyclododecane granuleor uniformly be deposited on the surface of hexabromocyclododecane granule, to realize mixture between bromization fatty acid barium salt, magnesium salt or calcium salt with double functions and hexabromocyclododecane uniformization uniformizing and coating and have a high efficient thermal stability. And at the same time, the invention simplifies the produce of hexabromocyclododecane and a thermal stability treating process, reduces producing and processing cost of hexabromocyclododecane, and decreases the discharge of the three wastes in a producing process of hexabromocyclododecane.