Bipolar membrane electrodialysis in aqua-ethanol medium: Production of salicylic acid

被引：57

作者：

Liu, Xiaohe ^{[1
]}

Li, Qiuhua ^{[1
]}

Jiang, Chenxiao ^{[1
]}

Lin, Xiaocheng ^{[1
]}

Xu, Tongwen ^{[1
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Collaborat Innovat Ctr Chem Energy Mat, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2015年 / 482卷

基金：

中国国家自然科学基金;

关键词：

Bipolar membrane; Electrodialysis; Aqua-ethanol medium; Salicylic acid; CITRIC-ACID;

D O I：

10.1016/j.memsci.2015.02.030

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To overcome the low solubility of salicylic acid (SAH) in the production process by bipolar membrane electrodialysis (BMED), the water-ethanol mixture as solution medium was introduced in the BMED technique. The results indicated that the highest acid concentration was obtained when ethanol content was 50 v/v%, and the current efficiency reached 982%. Moreover, the BMED stack of BP-C (BP, bipolar membrane; C, cation exchange membrane) configuration was proved as most cost-effective configuration, and using this configuration the highest current efficiency could reach 99.6% and the lowest energy consumption was 2.1 kW h kg(-1). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：76 / 82

页数：7

共 16 条

[1] Salicylic acid production by electrodialysis with bipolar membranes [J].