公开(公告)号：WO2012092338A3

公开(公告)日：2012-07-05

申请号：PCT/US2011/067529

申请日：2011-12-28

申请人： ALBEMARLE CORPORATION ,  HARROD, William, B. ,  HARDEN, John, M. ,  SHARP, Gary, L. ,  WILLIAMS, Robert, E.

发明人： HARROD, William, B. ,  HARDEN, John, M. ,  SHARP, Gary, L. ,  WILLIAMS, Robert, E.

IPC分类号： B01D53/68 ,  C01B7/09 ,  C07C17/12

摘要： A new, highly selective way of removing bromine contamination from a gaseous stream comprised of hydrogen bromide and bromine is described. Such process technology involves non-catalyzed free radical (benzylic) bromination of an alkylene- bridged aromatic hydrocarbon and/or certain alkyl-substituted aromatic hydrocarbons and recovering the purified gaseous HBr. Because of the high selectivity of the bromination on the aliphatic bridges or side-chains, virtually no ring bromination occurs, and this enables recovery of the bromine values in the form of HBr. Thus preferably, the bromine is recovered as HBr from the scrubbing liquid by subjecting the scrubbing liquid to thermal or catalytic dehyrobromination. In plant operations, the gaseous HBr purified in the process can then be introduced into a compressor to produce either liquid or gaseous HBr for storage under pressure. Alternatively, the purified gaseous HBr can be fed directly into one or more reactions in which HBr is used as a reactant.

公开(公告)号：WO2013184415A1

公开(公告)日：2013-12-12

申请号：PCT/US2013/042677

申请日：2013-05-24

申请人： ALBEMARLE CORPORATION

发明人： HARROD, William, B. ,  HARDEN, John, M. ,  HEEB, Rhett, P. ,  KARSEBOOM, Steven, G. ,  SHARP, Gary, L. ,  WILLIAMS, Robert, E.

IPC分类号： C01B7/09 ,  C07C17/093

CPC分类号： C01B7/093 ,  B01D53/68 ,  C07C9/14 ,  C07C17/12 ,  C07C17/14 ,  C07C22/04 ,  Y02P20/582

摘要： Processes of and systems for removing free bromine from gaseous anhydrous HBr contaminated with free bromine are described. In one type of process the gaseous contaminated HBr is fed into countercurrent contact with at least one liquid alkylaromatic hydrocarbon within a packed section of a column while maintaining the packed section under free radical bromination conditions so that one or more than one liquid a- bromoalkylaromatic compound is produced along with one mole of gaseous HBr per mole of a- bromoalkylaromatic compound produced. In another type of process the gaseous anhydrous HBr is fed into countercurrent contact through at least two scrubbers so that the gaseous anhydrous HBr is scrubbed substantially free of bromine by passage through these at least two scrubbers, each of which contains a different specified type of scrubbing liquid. In one embodiment the liquid alkylaromatic hydrocarbon comprises 1,2-diphenylethane.

摘要翻译： 描述了用游离溴污染的无水无水HBr除去游离溴的方法和系统。 在一种类型的方法中，将气体污染的HBr与塔的填充部分内的至少一种液体烷基芳族烃进行逆流接触，同时将填充部分保持在自由基溴化条件下，使得一种或多于一种液体α-溴烷基芳族化合物 与每摩尔产生的α-溴烷基芳族化合物一摩尔气态HBr一起产生。 在另一种类型的方法中，气态无水HBr通过至少两个洗涤器进料到逆流接触中，使得气态无水HBr通过这些至少两个洗涤器被洗涤，基本上不含溴，每个洗涤器含有不同的指定类型的洗涤 液体。 在一个实施方案中，液体烷基芳族烃包括1,2-二苯基乙烷。

公开(公告)号：WO2003097204A1

公开(公告)日：2003-11-27

申请号：PCT/US2003/015458

申请日：2003-05-16

申请人： ALBEMARLE CORPORATION

发明人： MCKINNIE, Bonnie, G. ,  WILLIAMS, Robert, E. ,  SHARP, Gary, L. ,  DADGAR, Alireza, M.

IPC分类号： B01D3/34

CPC分类号： B01D3/34 ,  Y10S203/11 ,  Y10S203/14

摘要： A process is described for preventing plugging of distillation equipment when the distillable liquid comprises a mixture of different liquids containing a dissolved substance tending to precipitate from the distillate. An adjuvant is provided to the mixture to be distilled,which adjuvant forms a composition with the dissolved substance that, if isolated, melts at a lower temperature than the distillation temperature.

摘要翻译： 描述了一种用于防止蒸馏设备堵塞的方法，当可馏液体包含含有倾向于从馏出物沉淀的溶解物质的不同液体的混合物时。 向要蒸馏的混合物中提供佐剂，该佐剂与溶解的物质形成组合物，如果分离，则该物质在比蒸馏温度低的温度下熔化。