MDI行业中光气合成反应的研究概况

MDI(,315812):MDI,,:,,,,,MDI:;MDI;;StudyonthePhosgeneReactionofMDIIndustryZHANGKun-peng(NingboWanhuaPolyurethanesCo.,Ltd.,ZhejiangNingbo315812,China)Abstract:Phosgenewasanimportantrawmaterialformanufacturing,andMDIwasalsoahighlytoxicdangerousgoods.Thephosgenereactionhadtwokeypoints.Onewasthereactiontoproducelargeamountsofheat,andifyoucan2notremoveheatofreactionintime,securityincidentswouldoccurredwiththequicklyraisedtemperature.Theotherwastheexcessivechlorine,whichcancauseproductqualityaccident.TakingcorrespondingmeasurestosolvephosgeneofthesetwocriticalpointsasMDIsectorwastheresearchtopic.Keywords:phosgene;MDI;chlorinated;heatofreaction:,,,,MDIE-mail:[e-mail]1,,,3.5%4.0%,[1],,,,10,[2]7080%,65%,43,85,8MDITDI[3](),22.1,:,,2.2,,,550,,80%,,,MDI,,MDI,MDI,2.3,,,200,,,,7002900,200t:(99%)925kg/t()268(m3)kg/t400kg/t,,(CO)(Cl2),362010387,:CO+Cl2COCl2H=-31.6kcal/molCl2(),,,,,:4Cl2+CH4CCl4+4HCl-25kcal/molCl2Cl2+H22HCl-44115kcal/molCl2CO+Cl2+H2OCO2+2HCl,,,,,250,,,,33.1,,,,,,:(1),;(2),;(3),,,;(4),;(5),,;(6),,,3.2,,,,,,[4],:,;,;,,,,,44.1,,CO7%8%,100%4.2,,3045,,Cl2,,,,,,,,,,,4.3,,12,,,,,U,,U,,,,,,,,,,,,,,5,,,,,[1],.[J].,1995(04):238-239.[2].[M].:,2001:33-48.[3].[D].,2004.[4].MDI[D].,2006.462010387