碳酸鋰深度除鈣的研究

1、東北大學(xué)碩士學(xué)位論文碳酸鋰深度除鈣的研究姓名：張福順申請學(xué)位級別：碩士專業(yè)：有色金屬冶金指導(dǎo)教師：金哲男20060101東北大學(xué)碩士學(xué)位論文AbstractLithiumanditscompoundsareveryimportantmaterialsfornationaleconomynationaldefenseconstructionandhumandailylifeBeinganimportantlithiumcompound，h

2、ighpurityLi2C03isusedwidelyduetoitsexcellentperformanceNowadays，asforpurifyhagindustrialLi2C03，thereexistssomesuccessfulmethodsforremovalofKandNa，howevertheeffectivemethodislacktemoveCafromLi2C03。tnthispaper，LisP04andres

3、inwereadoptedrespectivelytemoveCaforthefirsttimeAccordingtotheresultsoftheorthogonalexperiments，singlegeneexperimentsandvalidationexperiments，theoptimalconditions，ie，theLi3P04dosagebeingO1375g，thereactiontimebeing10h，the

4、ratioofliquidphaseandsolidphase(L／S)is15：1forrenloveCafromLiC03weredeterminedThecorrespondingremovalrateofCaoncecouldreach754％andtheremainCais136104％XRDshowsthatCaisgotridoffromLi2COsintheformofCa3(P04)2Theoptimalconditi

5、ons，iethecolophonytypebeingD412，thedosageofD412resinbeing30times，thetemperaturebeing40。C，theexchangetimebeing30min，forremovingCafromLiC03byionexchangemethodwerealsodeterminedAfterthethirdadverserecurrentadsorption，remova

6、lrateofCacouldreach9580％andthecorrespondingcontentinLiC03reducesto20x10珥％，ThisresultcanachievethenationalcriterionofLizCOs035levelTheadsorptiontimeCanbechangedinindustrialapplicationInthisstudytheUVVisiblespectrumwasused

7、toanalyzethecalciumcontentinLiC03andtheoptimalconditionsformeasurementisdetermined，whicharethedosageofCAPIIIbeing5ml，thedosageofEDTAbeing5ml，thechromogenictimebeing30minandthemosthigherlinercontentofCareachsto12pg／m1Thei