SUNFLOWER OIL BLEACHING BY ADSORPTION ONTO ACID-ACTIVATED BENTONITE

被引：29
|
作者：
Foletto, E. L. [1 ]
Colazzo, G. C. [1 ]
Volzone, C. [2 ]
Porto, L. M. [3 ]
机构：
[1] Univ Fed Santa Maria, Dept Chem Engn, BR-88040900 Santa Maria, RS, Brazil
[2] CETMIC CIC CONICET, Ctr Technol Mineral Resources & Ceram, Buenos Aires, DF, Argentina
[3] Univ Fed Santa Catarina, Dept Chem & Food Engn, BR-88040900 Florianopolis, SC, Brazil
来源：
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2011年 / 28卷 / 01期
关键词：
Acid-treated clays; Bentonite; Oil bleaching; Sunflower oil; PALM OIL; CLAYS; PERFORMANCE; SMECTITES; PINENE;
D O I：
10.1590/S0104-66322011000100018
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Two bentonite clays with different mineralogical compositions from Mendoza, Argentine, were activated with H(2)SO(4) solutions of 4 and 8 N at 90 degrees C for 3.5 hours. This treatment affected clay structural properties, as was shown by thermogravimetry, infrared spectrometry and chemical analysis. Bleaching efficiency for sunflower oil was strongly dependent on the acid concentration used for clay activation. The samples have bleaching capacity comparable to that observed with a commercial adsorbent standard. The mineralogical composition of natural clays influenced the properties of the activated clays.
引用
收藏
页码：169 / 174
页数：6
相关论文
共 50 条
  • [41] Removal of Cu(II) from aqueous solution by adsorption onto acid-activated palygorskite
    Chen, Hao
    Zhao, Yaogang
    Wang, Aiqin
    JOURNAL OF HAZARDOUS MATERIALS, 2007, 149 (02) : 346 - 354
  • [42] The adsorption isotherms of the bleaching of sunflower-seed oil
    Topallar, H
    TURKISH JOURNAL OF CHEMISTRY, 1998, 22 (02): : 143 - 148
  • [43] Adsorption of Acid Violet 17 onto Acid-Activated Pistachio Shell: Isotherm, Kinetic and Thermodynamic Studies
    Senturk, Ilknur
    Alzein, Mazen
    ACTA CHIMICA SLOVENICA, 2020, 67 (01) : 55 - 69
  • [44] Decolorization of soybean oil by acid-activated Ca-Bentonite (EL Gnater, Central Tunisia)
    Chakroun, Salima
    Sghaier, Dalel
    Gaied, Mohamed Essghaier
    ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, 2023, 42 (02)
  • [45] Effect of Alumina Content and Surface Area of Acid-Activated Kaolin on Bleaching of Rice Bran Oil
    Aung, Lei Lei
    Tertre, Emmanuel
    Suksabye, Parinda
    Worasith, Niramon
    Thiravetyan, Paitip
    JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 2015, 92 (02) : 295 - 304
  • [46] Nitric Acid-activated Nteje Clay: Structural and Bleaching Properties
    Ajemba, R. O.
    Onukwuli, O. D.
    INTERNATIONAL JOURNAL OF ENGINEERING, 2013, 26 (05): : 495 - 500
  • [47] Amine grafting of acid-activated bentonite for carbon dioxide capture
    Horri, Nouha
    Sanz-Perez, Eloy S.
    Arencibia, Amaya
    Sanz, Raul
    Frini-Srasra, Najoua
    Srasra, Ezzeddine
    APPLIED CLAY SCIENCE, 2019, 180
  • [48] Kinetics and Thermodynamics of β-Carotene Adsorption onto Acid-Activated Clays Modified by Zero Valent Iron
    Nga, J.
    Avom, J.
    Tonga Limbe, J.
    Ndinteh, D.
    Assonfack, H. L.
    Kede, C. M.
    JOURNAL OF CHEMISTRY, 2022, 2022
  • [49] Adsorption of ferrocyanide onto raw and acid-activated clinoptilolite and sepiolite: equilibrium modelling by error minimization
    Onen, V.
    Yel, E.
    CLAY MINERALS, 2013, 48 (04) : 613 - 626
  • [50] THE MECHANISM OF CHLOROPHYLL ADSORPTION ON ACID-ACTIVATED CLAYS
    MOKAYA, R
    JONES, W
    DAVIES, ME
    WHITTLE, ME
    JOURNAL OF SOLID STATE CHEMISTRY, 1994, 111 (01) : 157 - 163
12345