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1、天津大學碩士學位論文鈉堿再生循環(huán)脫硫液中金屬離子的溶解平衡特性姓名：劉麗梅申請學位級別：碩士專業(yè)：環(huán)境工程指導教師：張書廷20070601ABSTRACTInfluegasdesulfurizationwithmembraneelectrolysisandsodiumalkalirecycling，sulfuricacidusedbroadlyasindustrialrawmaterialsisby-product．nequalityofsulfuricaciddecidesitsmarket；therefore,fordifferentkeyelemen
2、tcombinationthequalityofsulfuricacidisthebasicandnecessaryrequirementsforresourceofby-productositionandrelatedtotheactualapplicationofthedesulfurizationprocess。Theparticularityoftheregernarationoffertileliquorfromdesulfurizationprocessisthatthereexistdissolutionandprecipitationequ
3、ibriumsofmetalionsintheabsorbent．Precipitationwillaffecttheoperationofequipment；onotherhand，dissolutionwillaffecttheregenerationoftheby-product．Therelationshipsbetweentheexistencecharacteristicandmaximumcontentofmetalionsandtheoperafingconditionandthevariousmetalicioninterationala
4、ctionswereinvestigated．Firstofall，thesolubilityforvarioussinglemetalionindifferentconcentrationsulfuricacidliquorWastheoreticallyanalyzed，thenexperimentallydetermined,atlasttherelationsbetweenthemaximummetalionconcentrationinsulfuricacidliquorandtheoperatingconditions，theactualinp
5、utcontent,themeasuringconditionsandthepriciptationtimewereanalyzed．Theresultsfromexperimentsaboutrelationbetweenmaximummatalioncontentandoperatingconditionsshowedthatactualdosageofmetalelementinfluencedmetalioncontentinsulfuricacidsolutiongreatly．Formagnesium,aluminumandironions，t
6、heioncontentsinsolutionWereinagreement‘witlltheiractualdosage．Forlowqoncentrationsulfuricacidsolution,theactualamountofmagnesium,aluminumandironionsarelargerandmagnesian,aluminousandironioncontentsinthesolutionaregreater．For8．0％and98％sulfuricacid,theresultsarejusttheopposite．Forca
7、lciumion,whensulfuricacidconcentrationsare25％，40％，50％and80％，respectively,thedosageofaddedcalciumisgreater,andthecalciumioninsolutionissmaller．Whensulfuricacidconcentrationis80％，theactuallyaddeddosageofcalciumis1．06439／L，andthecalciumioncontentinthesolutionis0．691g／L．Differentmeasu
8、ringmethodshavegreatinfluenceonca
