二苯胺合成的研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文二苯胺合成的研究姓名：羅財紅申請學(xué)位級別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：蔡天錫19990601大連理工大學(xué)碩士論文ABSTRACTInthisdissertation，thesynthesisofdiphenylaminefromanilineandphenolusingPd／CascatalysthasbeeninvestigatedItwasfoundthatPd／Cisaeffectivecatalystfo

2、rthereactionbetweenanilineandphenolandcyclohexylamineandcyclohexaneareexcellentpromotersforthereactionThehighyieldofdiphenylamine，65_3％wasachievedinthefavorablereactionconditionsAtlastthemechanismofthereactionwasdiscusse

3、dWithintherangeof2O％，theconversionofanilinehaslinearrelation塒山theamountofcatalystThefavorablemoleratioofpromotercyclohexylaminetoanilineiS02ItisusefultOincreasetheratioofanilinetophenolfrom1to3whenthefavorableyieldofdiph

4、enylamineisachievedMoreovertheyieldofdiphenylamineincreasedwithincreaseinreactiontemperature，andthefavorableyieldofdiphenylamineWaSachievedat523KInconclusion，theoptimumtechnicalconditionsofthereactionbetweenanilineandphe

5、nolare：theratioofreactants：cyclohexylamine：aniline：phenol=2：10：10；theamountofcatalyst=20％：reactiontemperature=523K；reactiontime=2hItwasindicatedthatthereactionbetweenanilineandphen01witllPd／Candcyclohexylamineascatalysta

6、ndpromoter，respectivelyproceedsthroughthemechanisminwhichNcyclohexylanilineandN—cyclohexylideneanilinearesequentiallyformedandthenconvenedtodiphenylaminebydehydrogenationandhydrogenationwithphen01Itwasfoundthattheadditio