US2013281743A1PendingUtilityA1

Methods of removing impurities from alkyl bromides during distillation and distillate produced therein

Individually held — no corporate assignee on recordPriority: Sep 25, 2007Filed: Jun 7, 2013Published: Oct 24, 2013

Est. expirySep 25, 2027(~1.2 yrs left)· nominal 20-yr term from priority

Inventors:Willam B. Harrod Dru J. Manuel Keith G. Anderson Aaron C. Williams Kimberly A. Maxwell

C07C 17/08C07C 19/075C07C 17/386C07C 17/395

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Claims

Abstract

Methods are provided for removing impurities from compositions comprising alkyl bromide. Such methods comprise combining such composition with at least one nonvolatile epoxide during distillation to purify the alkyl bromide. Ultra pure alkyl bromide compositions are also provided.

Claims

exact text as granted — not AI-modified

What is claimed is: 
     
         1 . A continuously produced distillate composition comprising 1-bromopropane with a purity of greater than about 99.8%. 
     
     
         2 . The continuously produced distillate of  claim 1  which has been derived by combining a composition comprising 1-bromopropane with at least one nonvolatile epoxide during distillation of the composition. 
     
     
         3 . A continuously produced distillate composition comprising 1-bromopropane having a 2-bromopropane content of less than about 120 ppm (wt/wt). 
     
     
         4 . The continuously produced distillate composition of  claim 3  which has been derived by combining a composition comprising 1-bromopropane with at least one nonvolatile epoxide during distillation of the composition.

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