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<strong>Carboxylic acids separation using hollow fiber supported liquid membrane</strong>

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Title Statement <strong>Carboxylic acids separation using hollow fiber supported liquid membrane</strong>
 
Added Entry - Uncontrolled Name Patil, N D; Chem Eng Department Institute of Chemical Technology, Matunga Mumbai 400 019
Patwardhan, A W; Chem Eng Department Institute of Chemical Technology, Matunga Mumbai 400 019
Patwardhan, A V; Chem Eng Department, Institute of Chemical Technology, Matunga Mumbai 400 019
Department of Science and Technology, Govt. of India
 
Uncontrolled Index Term Equilibrium; Mass transfer; Mathematical modeling; Membranes
 
Summary, etc. The experimental and modeling studies for extraction of different carboxylic acids using hollow fiber supported liquid membrane operated in a recycle mode has been described here. Characterization of membrane has been carried out to find the pore size. Tri-<em>n</em>-butyl phosphate (TBP), tri-<em>n</em>-octylamine (TOA) and tri-<em>n</em>-octylphosphine oxide (TOPO) are used as extractants for extraction studies. A generalized methodology for the extraction of carboxylic acids has been proposed. The extraction equilibrium studies for carboxylic acids are carried out to find the distribution coefficient (<em>k<sub>d</sub></em>) and the equilibrium constant (<em>K<sub>ex</sub></em>). A mathematical model has been developed by considering the mass transfer as well as the complexation and de-complexation reactions. The equilibrium results show that the extractants plays an important role in extraction of carboxylic acids, and thus influence the extraction of carboxylic acids. Almost 99% extraction of carboxylic acids has been achieved using 1% TOPO as an extractant. Effect on transport of carboxylic acids under various conditions, including acid concentrations, extractant concentrations, feed/strip flow rate, feed volume, scale up etc. has been investigated. Scale-up experiment show that flux obtained at both scales is the same and hence the rate of extraction is significantly faster in a module with high surface area.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2017-03-03 13:45:55
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJCT/article/view/7096
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 24, ##issue.no## 1 (2017): Indian Journal of Chemical Technology
 
Language Note en