relation: https://khub.utp.edu.my/scholars/2064/ title: An Optimization Study on the Extraction of Benzothiophene from Model Fuel using the Ionic Liquids 1-Butyl-3-MethylimidazoliumOctylsulfate creator: Abdullah Synmsul, B. creator: Man, Z. creator: Ismail, L. creator: Maulud, A. creator: Abdul Mutalib, M.I. creator: Bustam, M.A. description: The extraction of benzothiophene from ndodecane with l-butyl-3- methylimidazolium - octylsulfate bmimOcSO 4 ionic liquid (IL) was investigated. The influence of mass ratio (IL/fuel), extraction time and temperature was studied for an optimized condition of the benzothiophene removal. The optimization process was analyzed using Central Composite Face-Centered Experimental Design by Design Expert Version 6.0.6 (Stat-Ease, USA). The satisfactory optimum mild conditions obtained were at a mass ratio (IL/fuel) of 1:1 with extraction time of 9 min at temperature of 60°C. The adequacy of the model equation for predicting the optimum response values was validated using experimental data. date: 2011 type: Article type: PeerReviewed identifier: Abdullah Synmsul, B. and Man, Z. and Ismail, L. and Maulud, A. and Abdul Mutalib, M.I. and Bustam, M.A. (2011) An Optimization Study on the Extraction of Benzothiophene from Model Fuel using the Ionic Liquids 1-Butyl-3-MethylimidazoliumOctylsulfate. Research Journal of Chemistry and Environment, 15 (2). pp. 510-518. ISSN 09720626 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-80051876860&partnerID=40&md5=4f086eba2132f3ec27eba5924ba4acfc