自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 6    No. 2    December 1999

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REDUCTION OF FERRIC IRON IN THE TITANIUM SULFATE SOLUTION BY THE ION-EXCHANGE MEMBRANE PRIMARY CELL METHOD
Li Qinggang ZhouKanggen Zhang Guiqing Zhang Qixiou

Department of Metallurgical Science and Engineering, Central South University of Technology, Changsha 410083,China

Abstract:In the production process of titanium dioxide with sulfuric acid, the contamination of the titanium sulfate solution (the ilmenite leaching solution) in the Fe3+ reduction stage by iron scraps is a practical problem because it is difficult to guarantee the quality of the iron scraps. In this research, a new method, called the ion-exchange membrane primary cell method, for reduction of Fe3+ in the titanium sulfate solution has been advanced. The positive compartment of the primary cell consists of lead (copper) electrode and the titanium sulfate solution, and the negative compartment consists of iron electrode and acidic FeSO4 solution. The anion ion-exchange membrane is used as the diaphragm between two compartments. Fe3+ in the titanium sulfate solution is reduced by the electric discharge of the primary cell. The effects of temperature, stirring strength of the solution and membrane area on the reduction rate have been investigated. The experimental result shows that the optimum current density can be higher than 100 A/m2.

 

Key words: primary cell; ion-exchange membrane; Fe3+ reduction; titanium dioxide

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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