Document Detail


Ultrasound assisted synthesis of isopropyl esters from palm fatty acid distillate.
MedLine Citation:
PMID:  18977682     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Esterification is one of the most preferred synthesis routes for organic esters which are most frequently used as plasticizers, solvents and perfumery and flavour chemicals. The present work deals with acid catalyzed synthesis of isopropyl esters from palm fatty acid distillate (PFAD) in the presence of ultrasonic irradiations operating at 25kHz frequency and 1kW of supplied power. Effect of different operating parameters such as molar ratio of reactants, catalyst quantity and operating temperature has been studied with an aim of optimization. It has been observed that ultrasound enhances the rate of reaction and the extent of equilibrium conversion. The optimum parameters for this process have been found to be 1:5 molar ratio of PFAD to isopropanol, catalyst concentration of 5% of PFAD and 60 degrees C reaction temperature. Maximum conversion levels of about 80% have been obtained in 6h of reaction time under these optimized conditions. Analysis of the kinetic data indicates that the reaction follows first order reversible path.
Authors:
Vishwanath G Deshmane; Parag R Gogate; Aniruddha B Pandit
Publication Detail:
Type:  Journal Article     Date:  2008-09-26
Journal Detail:
Title:  Ultrasonics sonochemistry     Volume:  16     ISSN:  1350-4177     ISO Abbreviation:  Ultrason Sonochem     Publication Date:  2009 Mar 
Date Detail:
Created Date:  2009-01-05     Completed Date:  2009-06-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9433356     Medline TA:  Ultrason Sonochem     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  345-50     Citation Subset:  IM    
Affiliation:
Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai-40019, India.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
2-Propanol / chemistry
Catalysis
Esterification
Esters / chemical synthesis*,  chemistry
Fatty Acids / chemistry*
Kinetics
Models, Chemical
Sulfuric Acids / chemistry
Time Factors
Ultrasonics*
Chemical
Reg. No./Substance:
0/Esters; 0/Fatty Acids; 0/Sulfuric Acids; 67-63-0/2-Propanol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Metastatic disease involving the discovertebral junction of the spine.
Next Document:  High prevalence of reported tremor in Klinefelter syndrome.