eprintid: 16421 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/64/21 datestamp: 2023-12-19 03:22:57 lastmod: 2023-12-19 03:22:57 status_changed: 2023-12-19 03:06:13 type: article metadata_visibility: show creators_name: Rosli, M.H. creators_name: Siyal, A.A. creators_name: Shamsuddin, R.M. creators_name: Low, A. title: FEASIBILTY OF KAOLIN AND MICA AS BLEACHING EARTHS FOR THE REMOVAL OF ORGANIC COMPOUNDS FROM CRUDE PALM OIL ispublished: pub note: cited By 0 abstract: This paper describes the feasibility of use of locally available kaolin and mica for refining crude palm oil (CPO) and compares their performance with commercially available bleaching earth (Attapulgite) which is commonly used in the palm oil industry. The materials were characterized for chemical composition, surface area, pore size and pore volume, functional groups, and microstructure. The performance of refining was determined by measuring the removal of color, phosphorous, free fatty acids (FFA), and peroxide from palm oil. Attapulgite, kaolin and mica mainly contained silica, alumina and ferrous oxide and they were mesoporous materials with surface area of 89.932, 4.889, and 8.195 m2/g respectively. Functional group analysis showed decrease in the intensity of peaks due to adsorption of phosphorous which was in the order of attapulgite>mica>kaolin. Microstructural analysis showed heterogenous behavior of adsorbents with the presence of particles of different size. The refining of CPO results indicated that both kaolin and mica were able to adsorb impurities from the CPO. Attapulgite had the highest bleaching efficiency followed by mica and kaolin. Based on the obtained results, mica has the potential of refining of CPO and its performance could be further improved by activation using different agents. © 2022 Penerbit UTM Press. All rights reserved. date: 2022 publisher: Penerbit UTM Press official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137059324&doi=10.11113%2fjurnalteknologi.v84.18427&partnerID=40&md5=0b3b6f2fdfff909c41e012b2cc60ab7d id_number: 10.11113/jurnalteknologi.v84.18427 full_text_status: none publication: Jurnal Teknologi volume: 84 number: 5 pagerange: 145-154 refereed: TRUE issn: 01279696 citation: Rosli, M.H. and Siyal, A.A. and Shamsuddin, R.M. and Low, A. (2022) FEASIBILTY OF KAOLIN AND MICA AS BLEACHING EARTHS FOR THE REMOVAL OF ORGANIC COMPOUNDS FROM CRUDE PALM OIL. Jurnal Teknologi, 84 (5). pp. 145-154. ISSN 01279696