|
|
The Corrosion Electrochemical Study of Marmatite |
Runlan Yu |
中南大学资源加工与生物工程学院大型仪器室 |
|
|
Abstract The interfacial electrochemical behaviors of the interaction of marmatite with flotation reagents in 0.1mol/L KNO3 media were studied by potentiodynamic and impedance measurements. The results indicated that the corrosive potential of marmatite almost is not affected by pH values, but its corrosive current rises, and hydrophobic sulfur on marmatitie surface decreases rapidly and hydro action becomes obvious with the rising of pH values; that diethyl dithiocarbamate is a corrosive reagent and an inhibitor for the flotation of marmatitie;Ca(OH)2 is the best reagent for adjusting pH in alkaline flotation system.
|
Received: 05 March 2003
|
|
Corresponding Authors:
Runlan Yu
|
[1]WangDZ .NewDevelopmentsofFlotationTheory[M].Beijing:SciencePress,1992(王淀佐.浮选理论的新进展[M].北京:科学出版社,1992) [2]WoodR .Electrochemistryofsulfidemineralflotation[J].ForeignMetalMineral,1993,30(4):10-28(WoodR .硫化矿浮选电化学[J].国外金属矿,1993,30(4):10-28) [3]WangDZ ,HuYH .SolutionChemistryofFlotation[M].Changsha:Sci enceTechnologyPressofHunanProvince,1988(王淀佐,胡岳华.浮选溶液化学[M].长沙:湖南科技出版社,1988) [4]ForssbergKSE .FlotationofSulfideMinerals[M].Amsterdam-Oxford-NewYork-Tokyo:ElsevierScience,1985 [5]RichardsonPE ,HuQ ,FinkelsteinNP ,YoonRH .Anelectrochemicalmethodforthestudyoftheflotationchemistryofsphalerite[J].Int.J .Miner.Process,1994,41:71-76. [6]ElsheriefAE .Theinfluenceofcathodicreduction,Fe2+ andCu2+ ionsontheelectrochemicaldissolutionofchalcopyriteinacidicsolution[J].MineralsEng.,2002,15:215-223 [7]SongGL ,CaoCN ,LinHC .GeneralcircuitforEISofanirreversibleelectrodeunderelectrochemicalstepcontrolandparametersanalysis[J].J.Chin.Soc.Corros.Prot.,1994,8(2):113-122(宋光铃,曹楚南,林海潮.电化学控制条件下不可逆电极交流阻抗的统一换算电路和电化学参数解析[J].中国腐蚀与防护学报,1994,8(2):113-122) [8]LiD .ElectrochemicalPrinciples[M ].Beijing:BeijingAeronauticandAstronauticUniversityPress,1987(李荻.电化学原理[M].北京:北京航空航天大学出版社,1987) [9]ChengYF ,DuYL ,CaoCN .Inhibitionandadsorption/desorptionofcyclohexylaminephosphateinNa2SO4 solution[J].J.Chin.Soc.Corros.Prot.,1997,17(2):142-145(程玉峰,杜元龙,曹楚南.Na2SO4溶液中环己胺的换缓蚀机理及其吸附与脱附行为[J].中国腐蚀与防护学报,1997,17(2):142-145) [10]WangJM ,CaoCN ,LinHC .Inhibitionandsynergisticeffectofleadtartratewithtetrabutylammoniumbromideforzincinalkalinesolution[J].J.Chin.Soc.Corros.Prot.,1997,17(1):36-39(王建明,曹楚南,林海潮.酒石酸铅对锌在碱液中的缓蚀作用及其与四丁基溴化铵的协同效应[J].中国腐蚀与防护学报,1997,17(1):36-39) |
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|