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Inorganic Materials

, Volume 36, Issue 11, pp 1178–1182 | Cite as

Physicochemical principles of the decontamination and utilization of arsenic-containing waste

  • N. P. Dergacheva
  • V. S. Vasil’ev
  • G. M. Toptygina
  • V. I. Evdokimov
  • N. V. Kochetkova
  • V. A. Krenev
Article
  • 26 Downloads

Abstract

Thermodynamic computer simulation of heterogeneous multicomponent systems containing arsenic(III), arsenic(V), and calcium chlorides, hydrochloric acid, nitric acid, hydrogen peroxide, and oxygen is carried out for temperatures of 25–100‡C. The solute state of arsenic is found to influence the fugacities of arsenic trichloride and hydrogen chloride. Arsenic(III) oxidation in chloride solutions and distillation of arsenic-containing solutions in the presence of oxidants are studied experimentally to determine conditions for a rapid and virtually complete oxidation of arsenic in chloride solutions by nitric acid, ammonium nitrate, and hydrogen peroxide.

Keywords

Arsenic Arsenic Concentration Arsenic Compound Physicochemical Principle Arsenic Oxidation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • N. P. Dergacheva
    • 1
  • V. S. Vasil’ev
    • 1
  • G. M. Toptygina
    • 1
  • V. I. Evdokimov
    • 1
  • N. V. Kochetkova
    • 1
  • V. A. Krenev
    • 1
  1. 1.Kurnakov Institute of General and Inorganic ChemistryRussian Academy of SciencesMoscowRussia

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