Process for producing hexabromocyclododecane
AssigneeAlbemarle Corporation
InventorsJohn K. Kendall, Jeffrey T. Aplin
Life of this patent
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Abstract
This invention relates to the production of an hexabromocyclododecane product, which process comprises brominating cyclododecatriene in the presence of a 1,4-dioxane and water based solvent and from about 0.5 to about 30 wt % bromide ion in the liquid phase of the reaction mass. Optional post-reaction heat treatment in a finishing step increases process yields if needed. The hexabromocyclododecane product is unrecrystallized and contains no more than about 1.5 wt % tetrabromocyclododecene impurities.
Claims15
A process for the production of a hexabromocyclododecane, which process comprises brominating cyclododecatriene in a solvent comprised of 1,4-dioxane and water and in the presence of from about 0.5 to about 30 wt % bromide, the wt % being based on the total weight of the liquid portion of the reaction mass.
A process for the production of a hexabromocyclododecane, which process comprises brominating cyclododecatriene in a 1,4-dioxane and water solvent.
A process for the production of a hexabromocyclododecane, which process comprises brominating cyclododecatriene in a solvent which contains less than 5 wt % alcohol or reactive species and which is comprised of 1,4-dioxane and water.
Dependencies are inferred from the claim text.