%0 Journal Article
%T LeachingKineticsofCalciumVanadatebyNa2CO3Solution
%A 李旺兴
%A 赵卓
%A 苏赵辉
%A 李小斌
%A 赵清杰
%J 过程工程学报
%D 2010
%X LeachingkineticsofcalciumvanadatebyNa2CO3solutionwasstudied.KineticequationwasestablishedaccordingtothevariationofVO3-concentrationwithtimeduringtheleachingprocess.TheinfluencesofinitialpHvalueandstirringspeedonreactionrateconstantwereexaminedandthecorrespondingapparentactivationenergywascalculated.Theresultsindicatethattheleachingprocessisa0.68orderreaction,andthereactionrateconstant8.64′10-6mol/(L×s).ItincreaseswiththeincreaseofpHvalueandstirringspeed.Andthedissolutionrateofcalciumvanadatealsoincreases.Theapparentactivationenergyis38.98kJ/mol,andtemperaturehasgreatinfluenceontheleachingrateofcalciumvanadate.
%K metallurgicalreactionengineering
%K leaching
%K kinetics
%K calciumvanadate
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=15468