Comparative study on tartaric acid production by two-chamber and three-chamber electro-electrodialysis
Guochi Liu, Dushuai Wu, George Chen, Ronald Halim, Jie Liu, Huining Deng
SEPARATION AND PURIFICATION TECHNOLOGY | ELSEVIER | Published : 2021
Acidification is an essential step in organic acid production. In this work, an environmentally friendly electro-electrodialysis (EED) process was carried out to transform potassium tartrate (K2Tar) to tartaric acid (H2Tar) without additional waste salt generation. The characteristics of ions migration in the two-chamber EED and three-chamber EED processes were investigated, and the conversion ratio of tartaric acid and specific energy consumption of the two configurations were also compared. The competitive migration of K+ ions and H+ ions through cation exchange membrane was the key factor affecting the extent of acidification in the two-chamber EED process, while the selective transport o..View full abstract
Awarded by Special Science and Technology International Cooperation Projects of Key Research and Development Plan of Hebei Province
Awarded by Tianjin Key Research Program of Application Foundation and Advanced Technology
This project was supported by the Special Science and Technology International Cooperation Projects of Key Research and Development Plan of Hebei Province (17393601D, 18394008D), and Tianjin Key Research Program of Application Foundation and Advanced Technology (14JCZDJC38900).