一种用于谷氨酸二乙酸四钠脱盐的连续化电渗析的方法
By using two concentrate tanks alternately and carbon nanotube electrodes to adsorb salt ions in the electrodialysis device, the problems of low efficiency, high product loss and high water consumption in the electrodialysis of tetrasodium glutamate diacetate were solved, and efficient, low water consumption continuous electrodialysis desalination was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN HUAYU FINE CHEM CO LTD
- Filing Date
- 2024-03-29
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the electrodialysis desalination process of tetrasodium glutamate diacetate has low efficiency, high product loss rate, and large water consumption. In addition, conventional continuous electrodialysis devices cannot effectively control the salt concentration in the concentrate chamber, resulting in an increase in the solution concentration in the dilute chamber and affecting the product quality.
Two concentrate tanks are used alternately, and carbon nanotube electrodes are installed in the concentrate tanks. By monitoring the ion current on both sides of the electrodialysis membrane stack and the conductivity of the concentrate tank, the carbon nanotube electrodes adsorb salt ions in the concentrate, keeping the salt ion concentration in the concentrate circulation at a low level, thus achieving continuous electrodialysis.
It improves desalination efficiency, reduces product loss and water consumption, lowers wastewater discharge, realizes a highly efficient continuous electrodialysis process, and saves costs.
Smart Images
Figure CN118122139B_ABST