吉蘭泰鹽湖鹵水除雜及副產(chǎn)超細氫氧化鎂工藝

1、（題目：吉蘭泰鹽湖鹵水除雜及副產(chǎn)超細氫氧化鎂工藝目：吉蘭泰鹽湖鹵水除雜及副產(chǎn)超細氫氧化鎂工藝英文題目：英文題目：RemovalofImpuritiesfromBrineofJilantaiSaltLakePreparationProcessofUltrafineMagnesiumHydroxidePowderasaByproduct研究生：王少青研究生：王少青學(xué)科名稱：化學(xué)工藝學(xué)科名稱：化學(xué)工藝指導(dǎo)教師：劉進榮指導(dǎo)教師：劉進榮教授李彩虹

2、李彩虹副教授副教授二○○七年五月二○○七年五月碩士學(xué)位論文碩士學(xué)位論文分類號:學(xué)校代碼:10128分類號:學(xué)校代碼:10128UDC:學(xué)號:20041218學(xué)號:20041218IVAbstractTakingthecomprehensiveutilizationofbrinefromJilantaiSaltLakeasthebackgroundaprocesswasexperimentallystudiedonremovingimpu

3、ritiesfrombrineofJilantaiSaltLakepreparingultrafinemagnesiumhydroxidepowderasabyproductindertoprovidequalifiedbrinef30000tonsyearofsodaunittoincreasetheutilizablebenefitofthebrine.Thefirstpartinthepresentwkistoexplethepr

4、ocessfremovingimpuritiesfromJilantaiSaltLake.Onthebasisofproductioncostbenefitfremovalofimpuritiesdifferentmethodsofremovalofimpuritieswerecomparedincludinglimesodasodiumhydroxidesodaammoniasodamethodlimesodamethodwastak

5、enasthemethodofremovingimpuritiesmethod.Effectsofsystemtemperatureprecipitationtimeagitationspeedconcentrationsoflimeslurryontheremovalmagnesiumfrombrinewereexaminedsuitablerangeofeverytechniquesconditionwereobtainedbyme

6、ansofsinglefacttest.Theresultsshowthattheappropriateconditionsftheremovalofimpuritiesareasfollows:reactanttime25minmolarratioofmagnesiumionstolimeslurry1:1.1concentrationoflimeslurry2～3molL1reactanttemperature60℃agitatio

7、nspeed60～70rpmthequantityofmagnesiumhydroxideseedadded350gm3brinequantityofPAM120gm3brinerespectively.Thecontentofimpuritiesinthepurifiedbrinemeetstherequirementfproducingsoda.Sedimentationresultofmagnesiumhydroxideisimp

8、rovedwhenprocessconditionsabovementionedwereadopted.Inthesecondparttheexplationwasmadeontheprocessofpreparingultrafinemagnesiumhydroxidewithprecipitateasrawmaterialinwhichprecipitatewasobtainedbydisposalofimpuritiesfromb

9、rine.Firstlytheacidificationpurificationconditionsoftheprecipitateweredetermined.Theacidificationconditionsareasfollows:reactiontemperature20℃～25℃reactiontime40minpHofthehydrochlicacidleachingsolution7.0～7.5.Thepurificat

10、ionconditionsareinthefollowing:reactiontemperature20℃～25℃reactiontime30minmolarratioofcalciumionstomagnesiumsulfate1:1.1thequantityofethanol5ml.Theresultsindicatethattheremovalyieldofcalciumionsusinghydrochlicacidleachin