Dissolution kinetics of nickel(II) and nickel(III) oxides in acid media

The rate of nickel(II) and nickel(III) oxide dissolution in sulfuric, hydrochloric, and nitric acids was measured as a function of the acid concentration and temperature, and a kinetic model of this process is suggested. The limiting step of the dissolution process is the passage of the complexes forming on the oxide surface into the solution.

Authors
Pichugina N.M.1 , Kutepov A.M.2 , Gorichev I.G.3 , Izotov A.D.4 , Zaitsev B.E. 5
Journal
Theoretical Foundations of Chemical Engineering
Number of issue
5
Language
English
Pages
485-494
Status
Published
Link
External link
DOI
10.1023/A:1020634014278
Volume
36
Year
2002
Organizations
  • 1 Moscow State Technical University, Bol'shaya Semenovskaya Ul. 38, Moscow, 105839 Russia, Russian Federation
  • 2 Moscow State Univ. of Environ. Eng., Staraya Basmannaya Ul. 21/4, Moscow, 107884 Russia, Russian Federation
  • 3 Moscow Pedagogical State University, Ul. kibal'chicha 6, Moscow, 129242 Russia, Russian Federation
  • 4 Kurnakov Inst. Gen. and Inorg. Chem., Russian Academy of Sciences, Leninskii Pr. 31, Moscow, 117907 R., Russian Federation
  • 5 Peoples Friendship University, Ul. Miklukho-Maklaya 6, Moscow, 117198 Russia, Russian Federation
Keywords
hydrochloric acid; metal oxide; nickel; nitric acid; sulfuric acid; article; concentration (parameters); dissolution; kinetics; liquid culture; surface property; temperature
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