溶劑萃取法凈化濕法磷酸技術研究.pdf

1、昆明理工大學碩士學位論文溶劑萃取法凈化濕法磷酸技術研究姓名：李志祥申請學位級別：碩士專業(yè)：應用化學指導教師：蔣麗紅20041001昆明理工大學同等學力碩士學位論文摘要AbstractTheWPAcontainssomeimpuritiesasIron，Aluminum，Magnesium，F(xiàn)luorin，Silicon，SulfurOrganicmatterandsoon，anditisnotdirectlyusedtoproducet

2、heindustrialandthefoodphosphoricacidandfinephosphate，Aimingattheproblem，thetechnologyforpurificationofWPAbysolventextractionprocessisstudiedinthispaperFirstlythetypicMindustrialprocessforpurificationofWPAbysolventextract

3、ionprocessandtheadvantageanddisadvantageoftheextractionagentareanalyzedandcomparedaccordingtotheexistingtechnologyTheappropriateextractionagentisopted，AndthenstudyingonexperimentationforpurificationofWPAbysolventextracti

4、onprocessisfinishedByaseriesofsmdyingOilexperimentation，thetechnicalroutesandparametersareoptimizedTheycontains：@ThedefluorinationadditiveAisjoinedinareactorbythedrypowderandthedosageis102％～105％oftheacademicdosageThedosa

5、geofthedesulfatizationadditiveBis100％oftheacademicdosageThedosageofthedeehromationisO5％oftheweightoftheWPAandthetemperatureofthereactionis55“C，thetimeofthereactionis3hours②Thefittingdosageofthethinneris10％ofthetotalweigh

6、toftheorganicextractionsolvent(TriButyl—Phosphateandcoaloil)ThefittingdosageoftheTri—Butyl—PhosphateandcoaloilisdoableoftheweightoftheWPAThetemperatureoftheextractionis20～25“CThefittingdosageoftheSAisO5％oftheWPA⑨Thefitti

7、ngdosageofthescmbbingmatterisO75％ofthetotalweightoftheorganicphasesThetemperatureofthescrubbingis20～25℃Theconcentrationofthescmbbingmatteris15％④mfittingdosageofthepurewaterforthestrippingis30％ofthetotalweightoftheorganic

8、phasesThetemperatureofthestrippingis20～25“C’Comparedwiththeexistingtechnologyallovertheworldtheadvantageandtheinnovationcontain：(DTheprocessofthedefluorination，thedesulfatizationandthedechromationarefinishedintheSalD_ere

9、actorandtheheatofthereactionisusedtoke印thetemperatureofthedechromationinthephaseofthepretreatmentofWPAItisnotonlytodecreasethetimeofthereaction，toincreasecapabilitiesoftheequipmeritanddecreasetheinvestcostoftheequipment，