试析碳酸钙垢晶析出机理探讨与新型阻垢剂的试验研究

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1、华南理工大学硕士学位论文碳酸钙垢晶析出机理探讨与新型阻垢剂的试验研究姓名：邝钜炽申请学位级别：硕士专业：化学工程指导教师：钟理;何锡伶20030401摘要鬟黻菸力擎、凄秀掌静绻菇学壤谂瑟谈酸镑耩螽嚣象律缨羧聚缝辚究麓基础上，率文黼次独立蒋丧提融了晶体析出的“髓辍体过渣状态机瓒”援篷．其揭示了礅酸弼备蓠覆髯豫俸橱赉鹃先后矮孝黎转貔浚弱+为簿决旗拜拳系统翡绩垢控制阁嫩提供了耕的理论支持。矗戴蕊旗上+试验联窕了谶聚糖及其疆美影响蔽豢，发瑰冀露独特的聚戮瓣子结孝鼋筒表现出优嶷的阻垢性能。试验觉分表明．不仪意聚赭，其它阳离子凝静铹比

2、妻Ⅱ聚季铵《PQM)积聚疋燎受黢{PEI}奄卷辍壤煞力。瑟曼聚阳鼹子与聚熙离子缀溅麴复会物具礁比传统激垢测《PAA，HEDP等，蹩强的辍垢能力。嚣此憋者率先提出了“聚阴，阳离子协嚣錾嚣”鹣壤沦薪模式，其突酸了转缓一贯奉费瓣“蕊枣子基瓣疆壤壤霞”静蘸嫠，秀阻垢技术开撷7一条新逡径。将其运用千进一步的嶷骏研究．通过正焚燕验设计t已黼备出一种新的聚阴／阳离子麓窘錾垢裁一A，cpI。它鹣优良嚣瓣攀簇鼗已为菠袈实验艇诞嶷。荚麓适：魏驱钵；结鑫；黼瓣裁：壳聚糖A器ST欺ACTThemodelwhichiscalledMechanism

3、ofPrecursor{瓣TransitionStatewas棼Ⅱtforwardindependentlyforthefirsttimeinthisthesis．ItwasderivedfromsummarizationofdetailsystematicresearchondepositionofCaC03bymeansofexperimentsdependingontheprinciplesofthermodynamics，kineticsandthetheoryofcrystalformation。Themodel

4、revealstheruleofcrystalprocess，i．e．whichofthecalciumcarbonatepolymorphsisbornearliest，howtheprecursorformspriortothenucleationofthepolymorphouscrystals妊alciteandvaterite)。whathappensintheprocessesofcrystallizationandtransformationofthepolymorphs。Certainly．itwillne

5、wlyofferapowerfulsupportontheoryforcontralofscaleinthecirculatecooling-watersystem．0nthebasisofthat，afterehitosan(CTS)andcorrelativefactorshadbeendeeplystudiedbyexperimems，itwasshown谯辩theparticul靛structureofPotycationisresponsibleforthefinecapacityofscaleinhibitio

6、n．The&llexperimentalevideuceindieatedthatnotonlyCTSbuttheothersofpolycations。suchaspolyquaterniumfPQM)andpolyethyleneimine(PEl)。hascapacityofscaleinhibition，andtheunionofbothpolycationandpotyanionrepresentsamorepowerfulcharacteristicofpreventingscalethantheconvent

7、ionalinhibitors(PAA，HEDP嚣le}do，SOSO鑫newmodenamedScaleInhibitionofeolymttoaCooperatingwithPolyanionwasproposed，which舶ea稳sitwasbrokenthatthetraditionallimitofexclusivemodewiththecharacteristicofpreventingscalebytheanionicrediclesandanewwayofdescalehasbeencarvedoat．A

8、pplyingthenewmodetotheexperimentalinvestigationbymeansoforthogonalexperimentaldesign。ithasproducedA／C鞭，abran-newkindofmultipleinhibitorwi建optimizedcompo