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Recovery of boron from wastewater using 2, 2, 4-trimethyl-1,3-pentanediol in carbon tetrachloride

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Title Recovery of boron from wastewater using 2, 2, 4-trimethyl-1,3-pentanediol in carbon tetrachloride
 
Creator Mohapatra, Debasish
Chaudhury, Gautam Roy
Park, Kyung Ho
 
Subject LCD industry
2,2,4-Trimethyl-1,3-pentanediol
Boron extraction
Solvent extraction
 
Description 483-487
A process was developed to recover boron from the waste stream of liquid crystal display (LCD) industry using 2,2,4-trimethyl-1,3-pentanediol dissolved in carbon tetrachloride as an extractant. Several parameters such as contact time, boron concentration in the aqueous phase, extractant concentration, equilibrium pH and phase ratio were studied for process optimization. Equilibrium conditions for boron recovery were optimized from the batch test results as: 2 stages of extraction and 2 stages of stripping with an organic: aqueous (O:A) ratio of 1. Maximum boron extraction was achieved at a pH range of 1.0 - 6.0. Overall 95.6% boron recovery was achieved under the best experimental conditions.
 
Date 2009-01-22T06:11:27Z
2009-01-22T06:11:27Z
2008-09
 
Type Article
 
Identifier 0971–457X
http://hdl.handle.net/123456789/2840
 
Language en_US
 
Publisher CSIR
 
Source IJCT Vol.15(5) [September 2008]