Metal production by electrolysis in molten salts
Modern electrolysis technologies can provide possibilities for developing sustainable processes in terms of energy and environment. Laboratory experiments were carried out to study electrodeposition of several metals and alloys including titanium, aluminium and high purity silicon from molten salts. Electrochemical techniques were used to study the electrochemical behaviour of dissolved species. Bulk electrolysis was carried out to deposit the pure metals. The influence of the formation of dissolved metals including socalled metal fog on the metal deposition process was investigated. The electrochemical nucleation was studied by potentiostatic current transients. Additional electrochemical experiments were performed to study anode processes in molten chloride and fluoride electrolytes containing dissolved oxides with the aim of improving the performance of the anode process during electrowinning. Calculations based on laboratory studies indicate that significant improvements in terms of reduced energy consumption and lower CO2 emissions can be achieved by successful implementation of new technologies.
Electrolysis molten salts metal production
Geir Martin HAARBERG
Norwegian University of Science and Technology, Trondheim, Norway
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-7
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）