%0 Journal Article
%T Glycerolchlorinationinagas-liquidsemibatchreactor£ºNewcatalystsforchlorohydrinproduction
%A R. Vitiello
%A V. Russo
%A R. Turco
%A R. Tesser
%A M. Di Serio
%A E. Santacesaria
%J ´ß»¯Ñ§±¨
%P 663-669
%D 2014
%R 10.1016/S1872-2067(14)60069-3
%X £¿Glycerolfrombiodieselproductioncanbeanimportantindustrialfeedstockforchemicalcommoditiesasitcanbeusedinthefood,cosmetic,pharmaceuticalandtobaccoindustries.However,crudeglycerolderivedfrombiodieselproductionhasalowvaluebecauseofimpurities.Thepurificationofthisglycerolintoahighgradeinvolveshighcostsandisnoteconomicallyfeasibleforsmallandmediumsizeplants.Theglycerolconversionintochlorohydrinswasstudiedusingnewhomogeneouscatalystsandhydrochloricacidaschlorinationagent.Thisisaninterestingalternativeroutetoepichlorohydrinandthentoepoxyresins.Thebehavioroftwoseriesofhomologouscatalysts,glycolicacidseries(glycolicacid,di-glycolicacidandthio-glycolicacid)andamminoacidseries(glutamicacid,asparticacidandcysteine),wereinvestigatedfortheiractivityandselectivity.Glycolicacidsweremoreactivethanamminoacids.ThepKavalueshadastronginfluenceonselectivity(mono-chlorohydrins/di-chlorohydrins)fortheamminoacidseries,whichwasnotobservedfortheglycolicacids.Akineticmodelandreactionmechanismdevelopedinapreviousworkwereusedforinterpretingthekineticruns.
%K Glycerolchlorination
%K Chlorohydrins
%K Epichlorohydrin
%K Hydrochloricacidgas
%U http://www.chxb.cn/CN/abstract/abstract21313.shtml