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pH值对味精活性炭脱色效果的影响(2)

来源:网络收集 时间:2026-09-02
导读: [3]刘自珍.提高隔膜电流效率降低电耗[J].氯碱工业,2007(2):18-19. [4]陈康宁.隔膜法烧碱节能技术[J].氯碱工业,2007(4):19.[5]余国琮.化工机械工程手册[M].北京

[3]刘自珍.提高隔膜电流效率降低电耗[J].氯碱工业,2007(2):18-19.

[4]陈康宁.隔膜法烧碱节能技术[J].氯碱工业,2007(4):19.[5]余国琮.化工机械工程手册[M].北京:化学工业出版社,2003.

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化学碳及混合碳对味精脱[4]王运生,宣亚文,李占灵.物理碳、

参考文献

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[J].林产化工通讯,2004,38(6):6-9.

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pH值对味精活性炭脱色效果的影响

2007,14(4)ChemicalProductionandTechnologyABSTRACTS

cyclohexylamine,andfollowedbyNenitzescureaction,withanoverallyieldof59%.ItsstructurewascharacterizedbyIRspectrumandMSspectrum.

Keywords:N-cyclohexyl-5-hydroxyindole-3-carboxylicesterLNenitzescureactionNsynthesis

ExperimentStudyonPreparationofFe2O3fromtheWasteWaterinTitaniumDioxideProductionbyHydrochloricacid

DingJie

(SichuanUniversityofScienceandTechnology,Zigong,Sichuan643000)

Abstract:Highpurityironoxideispreparedfromtheironchloridewasteliquidintheproductionoftitaniumdioxideand

harmlessdischargeistested.Resultsshowwhen7.5%ammoniawaterisusedasaneutralizationprecipitator,pHofthesolutioniscontrolledat4,reactiontemperature50℃toremovethepuritiesoftitaniumandironNandironoxideistreatedwith0.21%dilutednitricacidtoremovetheimpuritiesofcalciumandmagnesium.

TheresultantproductFe2O3isover99.3%inpurity,

meetingtherequirementsofSJ/T10383—93.Massconcentrationofnitricacidinthewasteliquidislessthan0.4g/L,filtrateofthedepositedironoxideisevaporatedandcrystallizedtorecoverammoniumchloride.Thewasteliquidisdischargedwithoutharm.

Keywords:highpurityironoxideLtitaniumdioxidewasteliquidLremoval

InfluenceofpHonMonosodiumGlutamateDecoloringbyActiveCarbon

WangYunsheng,LiZhiwei,YangXiu(ZhoukouNormalCollege,Zhoukou,Henan466000)

Abstract:EffectofpHonneutralizationsolution,neutralizationmixedsolution,mixedsolutionpartlycomingfromwashingcarbonpillarandmonosodiumglutamatesolutionistestedinthedecoloringofactivecarbon.TheresultsindicatethatthetransmissionattherangeofpH5.5~6.0washigher3%~9%thanthatofpH6.8~7.5,thetransmissionofneutralizedandmixedsolutionwashigherabout3%thanthatofmixedsolutionpartlycomingfromwashingcarbonpillarL3%ontransmissionofthesolution.

Keywords:activecarbonLpHvalueLtransmission.

pHvaluealsohasaninfluenceof1%~

EffectofGasDistributoronBubbleSizeProfilesinABubbleColumn

YeZeyue,ZhangLijuan,ShiKangsheng,LiTao,FangDingye,YingWeiyong

(ChemicalEngineeringInstitute,EastChinaUniversityofScienceandTechnology,Shanghai200237)

Abstract:Axialbubblesizedistributionandgasholdupprofilesweredeterminedundertheambienttemperatureandpressureusingthedualelectricalconductivityprobestechnologyinagas-liquidbubblecolumn,andtheeffectsofthegasdistributorontheperformanceofthebubblecolumnwereresearched.openareaincreased.

Theresultsindicatedthattheregimetransferwasdelayedwhenthe

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