SALICYLIC-ACID PRODUCTION BY ELECTRODIALYSIS WITH BIPOLAR MEMBRANES

Authors
ALVAREZ F ALVAREZ R COCA J SANDEAUX J SANDEAUX R GAVACH C
Citation
F. Alvarez et al., SALICYLIC-ACID PRODUCTION BY ELECTRODIALYSIS WITH BIPOLAR MEMBRANES, Journal of membrane science, 123(1), 1997, pp. 61-69
Citations number
10
Categorie Soggetti
Engineering, Chemical","Polymer Sciences
Journal title
Journal of membrane science → ACNP
ISSN journal
03767388
Volume
123
Issue
1
Year of publication
1997
Pages
61 - 69
Database
ISI
SICI code
0376-7388(1997)123:1<61:SPBEWB>2.0.ZU;2-Q
Abstract
Production of salicylic acid from sodium salicylate was carried out by electrodialysis (ED) using bipolar membranes (BPM). The process feasi bility was tested using a laboratory ED-cell with a membrane area of 4 0 cm(2). The performances of two commercial bipolar membranes (Tokuyam a Soda and Stantech membranes) are compared. Current efficiencies for salicylic acid and caustic soda production are close for both bipolar membranes (80-90%), but differences are observed with respect to energ y consumption which are related to the electrical characteristics of t he membranes.