Separation of gluconate with conventional and bipolar electrodialysis

被引:32
作者
Novalic, S [1 ]
Kongbangkerd, T [1 ]
Kulbe, KD [1 ]
机构
[1] Agr Univ Vienna, Inst Food Technol, Div Biochem Engn, A-1190 Vienna, Austria
关键词
separation; membrane technology; electrodialysis; bipolar membranes; gluconate; gluconic acid;
D O I
10.1016/S0011-9164(97)00153-7
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Gluconate, predominantly produced by fermentation, is widely used in the form of sodium gluconate, gluconic acid or glucono-delta-lactone as a bulk chemical. Because of undesirable by-products, the conventional isolation and purification method (mainly ion exchange) is problematic, especially when gluconic acid is generated. In this paper the basic behaviour of the recovery of gluconate using electrodialysis as well as electrodialysis with bipolar membranes is described. Mass transfers and conversion rates are measured depending on gluconate concentration or current density. A typical flux was around 2.0 x 10(-4) kg/m(2)s. In addition, current efficiencies, which influence specific energy consumption, were considered. Around 3.0 x 10(6) J energy (excluding pumping) was necessary to isolate 1 kg gluconate. The achievable maximum concentrations, which mainly depend on the ratio between mass transfer of gluconate and water transport, were estimated at approximately 30% (w/v) for the conventional and around 45% in case of the bipolar process.
引用
收藏
页码:45 / 50
页数:6
相关论文
共 16 条
[1]  
BAUER B, 1992, INTERNAL REPORT SEPA
[2]   Simultaneous enzymatic synthesis of mannitol and gluconic acid .1. Characterization of the enzyme system [J].
Haltrich, D ;
Nidetzky, B ;
Miemietz, G ;
Gollhofer, D ;
Lutz, S ;
Stolz, P ;
Kulbe, KD .
BIOCATALYSIS AND BIOTRANSFORMATION, 1996, 14 (01) :31-45
[3]   REJECTION AND CONTINUOUS REGENERATION OF THE NATIVE COENZYME NAD(P)H IN A CHARGED ULTRAFILTRATION MEMBRANE ENZYME REACTOR [J].
KULBE, KD ;
HOWALDT, MW ;
SCHMIDT, K ;
ROTHIG, TR ;
CHMIEL, H .
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1990, 613 :820-826
[4]   ELECTRODIALYSIS WATER SPLITTING TECHNOLOGY [J].
MANI, KN .
JOURNAL OF MEMBRANE SCIENCE, 1991, 58 (02) :117-138
[5]  
Nidetzky B, 1996, BIOTECHNOL BIOENG, V52, P387, DOI 10.1002/(SICI)1097-0290(19961105)52:3&lt
[6]  
387::AID-BIT4&gt
[7]  
3.0.CO
[8]  
2-G
[9]  
Nidetzky B, 1997, BIOTECHNOL BIOENG, V53, P623, DOI 10.1002/(SICI)1097-0290(19970320)53:6&lt
[10]  
623::AID-BIT10&gt