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《草甘膦的富集、微膠囊制備與其固相催化合成》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、江蘇大學(xué)碩士學(xué)位論文ABSTRACTWiththeenlargementofglyphosateindustryscientificresearchpersonnelpaymoreandmoreattentiontorecoveryacertainamountglyphosateisopro—pylaminewastewater.Recoveringglyphosatewhichcanmeettherequirementsofeconomyandenvironmenthasbecomedifficultyandfocusoftrestinggly—phosa
2、tewastewater.Solventsublationwasintroducedfortheenrichmentgly-phosateisopropylamineintheglyphosatewastewater.GlyphosatecouldreactswithC03+toformstablecomplex,usemalachitegreenascaptureagent,atthesametime,toimprovesolubilityofthiscomplexinorganicsolventssuchasiso-octan01.Thecategory
3、andusageofchelatorandcaptureagent,pHofthesolu-tion,floatationtime,sortofsolvent,flowrateofnitrogengasetconthefloatationefficiencywereinvestigated,whenmalachitegreen:Co”:glyphosateisopro—pylamineequaltoO.9:1:1.3,pHis3,useisoamylalcoholasfotationsolvent,theflowrateofN2is150mL/minandt
4、imeofsolventsublationis25min,theyieldofsolventsublationcanreachto90.49%.Inordertoreducetheharmoforchards,teaplantationsandinfrastructurevegetationbyglyphosate.urea-formaldehyderesinwasthematerialofwall,lowconcentrationglyphosateisopropylaminebeenrichedbyinterfacialpolymeriza-tion.T
5、henitWasmicroencapsulatedinordertoreducetheharmofenvironment.Meanwhile,Preparationwassynthesizedwhichwasgooddispersion,convenientfertilizationandobviousslow.release.Inaddition,themodificationofmicrocapsulewallmaterialswasstudied.Improvementsonthewallmaterialwerecarriedoutintwofacet
6、s:ontheonehand,selectingnon—toxicneturalpolymermaterials(chitosan/sodiumalginate,gelatin);ontheotherhand,reducingthemoleratioofcompoundsandaddingmodifier(polyvinylalcoh01)toreducefreeformaldehydecontentandimprovetheworkingenvironment.Experimentsshowedthatthemethodofin-situinterfaci
7、alpolymerizationIII草甘膦的富集、微膠囊制備及其固相催化合成forpreparationofUFresinmicrocapsuleshadmanymerits,suchaseasycontrol,ordinaryfacilityandmaneuverablearts.Theglyphosatemicrocapsulescoatedwellandhadgoodsustained-·releaseeffectbyusingmodifiedurea—-formaldehyderesin.Thiswillprovideagoodfoundation
8、forindustrialproduction.Th