A environmentally friendly process for boric acid and sodium hydroxide production from borax; bipolar membrane electrodialysis
DESALINATION AND WATER TREATMENT, vol.57, no.43, pp.20261-20269, 2016 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 57 Issue: 43
- Publication Date: 2016
- Doi Number: 10.1080/19443994.2015.1107509
- Journal Name: DESALINATION AND WATER TREATMENT
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.20261-20269
- Inonu University Affiliated: Yes
Abstract
In this study, the production of boric acid from borax was carried out by electrodialysis with bipolar membranes. The current efficiencies for boric acid and sodium hydroxide production by bipolar membrane electrodialysis were determined to be between 93.13 and 99.53%. In addition, the products with purity up to 99.52% (in weight) H3BO3 and 99.12% (in weight) NaOH were obtained. This method gives a facility of producing of sodium hydroxide and boric acid without any harmful waste material and offers an alternative process to commercial production methods for boric acid and sodium hydroxide.