复合絮凝回收分子筛催化剂晶化母液中磷的研究栾国颜

3311Vol．33No．11201611JOUＲNALOFJILININSTITUTEOFCHEMICALTECHNOLOGYNov．20162016-09-1920140204086GX1964-．*[e-mail]1007-2853201611-0001-06*132022．．、、、pHpH20mL4mL10%2．5mL2%20～30℃15s90．28%．TQ2ADOI10．16039/j．cnki．cn22－1249．2016．11．0011、、、．2、、．2-5．MTO．SAPO-34MTO6-7．SAPO-34．SAPO－34、、、、、、SAPO-34．92%．8-11XEDS、10．12HPO2－4+Mg2++NH+4+6H2OMgNH4PO4·6H2O↓+H+PO3－4+Mg2++NH+4+6H2OMgNH4PO4·6H2O↓MgNH4PO4·6H2O．、．11．1SAPO-34．TU-1810722sDZF-6020XMTD-2041．21．2．1．1．2．2．、、、pH．22．1SAPO-349．NH43PO4·NH4VO3·16MoO31Y=0．0244X+0．0346YXmg·L－1．/mg·L－111mL50mL20mL1mL30%100mL．5mL50mL30mL10mL50mL30min450nm1cm100010001．1/mg·mL－1/mg·mL－1110．66225．713220．67826．369330．69026．86126．098440．64925．18550．67826．36922016=－/×100%2．211．2．311、、、、pH．2．3．120mL250mL4mL2．5%、5%、7．5%、10%、12．5%w/w%2．5mL2%w/w%．2．1．10%210%3．．/%2/%32．3．220mL250mL2．5mL0．5%、1%、1．5%、2%、2．5%、3%w/w%4mL10%w/w%．2．1．2%．410%2%5．/%4311/%52．3．310～50℃．20mL250mL10、20、30、40、50℃20min2．5mL2%w/w%4mL10%w/w%．2．1．2．0mg·mL－12．5mg·mL－130℃67．/℃6/℃72．3．420mL250mL2．5mL2%w/w%4mL10%w/w%5s、15s、25s、35s、45s．2．1．/s8/s94201615s8．15s9．2．3．5pH10pHpH7．58pHpHpHpH2～7．58pH．20mL250mL2．5mL2%w/w%4mL10%w/w%pH2～7．5．2．1．pHpH610pH11．、MgNH4PO4·6H2OpH11pH6～7．58pH．pH10pHpH11pH3、、pHpH30℃20mL4mL10%2．5mL2%15s．90．28%511．1．—SAPOJ．200525339-42．2．NaYJ．200210656-60．3．J．19961618-13．4．J．201030219-26．5LiuConghuaGaoXionghouMaYanqingetal．StudyonthemechanismofzeoliteYformationintheprocessofliquorrecyclingJ．MicroporousandMesoporous．Materials19982531-6．6．J．—201023191-199．7KangM．Methanolconversiononfnetal－incorporatedSAPO-34MeAPSO-34sJ．Mole．Catal．20001602437-444．8．J．201229111-4．9．J．2013331243-46．10．J．2015432390-91．11．J．201532111-4．12．J．201131158-60．PhosphorusComponentfromCrystallizedMotherLiquorofZeoliteCatalystbyUsingCompositeFlocculantsLUANGuo-yan*ZHANGMinTANXue-qiangTANKe-xinPEIDong-hanCollogeofPetrochemicalEngineeringJilinInstituteofChemicalTechnologyJilinCity132022ChinaAbstractInthispaperthemethodthatPhosphoruscomponentfromthecrystallizedmotherliquorofzeolitecatalystswererecoveredtobeasaslow-releasecompoundfertilizersbycompositeflocculationofmagnesiumchlorideandammoniumbicarbonatewereresearched．ThephosphoruscontentsofthecrystallizedmotherliquorofzeolitecatalystsandthephosphoruscontentsoftheclearliquidfortheflocculantswereaddedweredeterminedquantitativelybyUV-spectrophotometer．Therecoveryofphosphoruswerecaculated．TheflocculantconcentrationflocculationtemperaturestirringtimeandpHvalueofthecrystallizedmotherliquorwereinvestigatedbysinglefactorexperiments．Theresultshaveshownthattheoptimalflocculantingconditionsarethat4mLofmagnesiumchloridefor10%concentrationand2．5mLofammoniumbicarbonatefor2%concen-trationareaddedin20mLofthecrystallizedmotherliquortheflocculationtemperatureiscontrolledat20～30℃stirringtimeis15secondsandnoacidswereaddedintothecrystallizedmotherliquor．Therecoveryofphosphorusis90．28%．Keywordscompositeflocculationcrystallizedmotherliquorphosphoruscontentcompoundfertilizers62016