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Continuous Separation of an H 2 SO 4 /CuSO 4 Mixture by Diffusion Dialysis
Author(s) -
Bendová H.,
Palatý Z.
Publication year - 2011
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201000381
Subject(s) - sulfuric acid , chemistry , countercurrent exchange , copper , membrane , diffusion , yield (engineering) , sulfate , ion exchange , dialysis , copper sulfate , chromatography , salt (chemistry) , inorganic chemistry , partition coefficient , separation process , analytical chemistry (journal) , ion , thermodynamics , organic chemistry , biochemistry , medicine , physics
The separation of a mixture of sulfuric acid and copper sulfate is experimentally investigated in a two‐compartment countercurrent dialyzer at steady state using an anion‐exchange membrane. The dialysis process is characterized by the recovery yield of acid, the rejection coefficient of salt, and the permeability coefficient of the membrane. The simultaneous transport of sulfuric acid and copper sulfate is quantified by four phenomenological coefficients, which are dependent on the acid and salt concentrations in the feed. They are determined by a procedure consisting of (i) the numerical integration of the basic differential equations describing the concentration profiles of both components on both sides of the membrane and (ii) the optimizing method.