Published February 1998
| Version v1
Journal article
Removal of arsenic from sulphuric acid solutions
Creators
- 1. Poznan University of Technology (Poland). Institute of Chemical Technology and Engineering
Description
Extraction of As(III) and As(V) from sulphuric acids solutions of H2SO4 of various concentration (50-200 g/dm3 with Cyanex 923 dissolved in Exxsol 220/230) was studied and compared. Cyanex 923 can be considered as an effective arsenic extractant. Sulphuric acid is co-extracted. Extraction both of As(III) and As(V) occurs quickly and the equilibrium is obtained after 5 minutes. The isotherms of As(III) and As(V) extraction at various sulphuric acid concentrations were determined and used to model the multistage countercurrent process. Arsenic can be stripped with water. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 228
- Journal Issue
- 1-2
- Journal Page Range
- p. 105-108.
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 29023909
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ARSENIC COMPLEXES; COMPARATIVE EVALUATIONS; ISOTHERMS; REMOVAL; SOLVENT EXTRACTION; STRIPPING; SULFURIC ACID; WATER
- Descriptors DEC
- COMPLEXES; DIRECT REACTIONS; EVALUATION; EXTRACTION; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; NUCLEAR REACTIONS; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SULFUR COMPOUNDS; TRANSFER REACTIONS
Optional Information
- Notes
- 34 refs.