%0 Journal Article
%T effectoftemperatureonkineticparametersofdecompositionreactionofcalciumcarbonate
%A chenhongwei
%A chenjiangtao
%A weiriguang
%A suoxinliang
%J ÈÈÁ¦·¢µç
%P 26-30
%D 2013
%X inordertoinvestigatetheinfluenceoftemperatureonbehaviorofcalciumcarbonatedecomposition,especiallyonkineticparametersofthedecompositionreaction,theanalyticallypurecalciumcarbonatewascalcinedonaself£¿builtlargedosethermogravimetricanalyzer.theresultsindicatedthat,withanincreaseinthereactiontemperature,thereactivityindexofcalciumcarbonatedecompositionincreasedatstagestatewhilethekineticparametersdecreasedatstagestate.moreover,boththereactionindicesandthekineticparameterscanbedividedintothreestagesandthetemperatureturningpointsindifferentstageswerethesame.thephaseboundaryreaction(cylindricalsymmetry)theorywasmoresuitableforcalciumcarbonatecalcinationundern2atmosphere.thechangetrendofthelogarithmofreactionactivationwithtemperaturewassimilarasthatofthepre£¿exponentialfactor.thereexistedgoodlinerrelationshipandkineticcompensationeffectbetweenthem.theisokinetictemperatureofthecaco3calcinationwas842¡æandthereactionrateconstantwas0.1049min-1derivedbythecompensationcoefficients.
%K caco3
%K isothermalthermogravimetry
%K chemicalkinetics
%K compensationeffect
%K isokinetictemperature
%U http://rlfd.paperopen.com//oa/darticle.aspx?type=view&id=201306007