Salicylic acid production by electrodialysis with bipolar membranes

Production of salicylic acid from sodium salicylate was carried out by electrodialysis (ED) using bipolar membranes (BPM). The process feasibility was tested using a laboratory ED-cell with a membrane area of 40 cm 2. The performances of two commercial bipolar membranes (Tokuyama Soda and Stantech m...

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Bibliographic Details
Published inJournal of membrane science Vol. 123; no. 1; pp. 61 - 69
Main Authors Alvarez, Francisco, Alvarez, Ricardo, Coca, José, Sandeaux, Jacqueline, Sandeaux, Roger, Gavach, Claude
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 08.01.1997
Elsevier
Subjects
Applied sciences
Bipolar membrane
Chemical industry and chemicals
Current efficiency
Electrodialysis
Energy consumption
Exact sciences and technology
Industrial chemicals
Organic industry
Salicylic acid
Current efficiency
Salicylic acid
Bipolar membrane
Energy consumption
Electrodialysis
Manufacturing process
Experimental study
Performance
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Summary:Production of salicylic acid from sodium salicylate was carried out by electrodialysis (ED) using bipolar membranes (BPM). The process feasibility was tested using a laboratory ED-cell with a membrane area of 40 cm 2. The performances of two commercial bipolar membranes (Tokuyama Soda and Stantech membranes) are compared. Current efficiencies for salicylic acid and caustic soda production are close for both bioolar membranes (80–90%), but differences are observed with respect to energy consumption which are related to the electrical characteristics of the membranes.
ISSN:0376-7388
1873-3123
DOI:10.1016/S0376-7388(96)00197-4