Beneficiation pretreatment and chemical activation method for preparation and characterization of nano structure bentonite
Other Title(s)
استخدام المعالجة و التنشيط الكيمياوي لتحضير و دراسة خصائص بينتونايت نانوي
Joint Authors
Numan, Riyad M.
Rukan, Ghassan
Ali, Man
Quraysh, Abbas
Naumat, Dina
Ahmad, Hamsah
Abbas, Thamirah Khidr
Hamadi, Adil Sharif
Source
Engineering and Technology Journal
Issue
Vol. 33, Issue 9B (30 Sep. 2015), pp.1683-1692, 10 p.
Publisher
Publication Date
2015-09-30
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Abstract EN
Bentonite has widely been employed in many industrial applications due to their physicochemical properties and availability at low cost.
The aim of this work was conducted to submit the Iraqi natural bentonite clay to beneficiation pretreatment and chemical acidification using 60% sulfuric acid under mechanical agitation for 2 hours at atmospheric temperature and pressure condition.
The resulting bentonite was washed several times with distilled water and modified with ethanol under ultrasonic mixing.
An experimental study was conducted to study the chemical composition, grain size, structural characterization and morphology of nano particle bentonite obtained using techniques of AFM microscopy, X-ray fluorescence XRF, Xray diffraction XRD, scanning electron microscopy SEM, surface area by BET method, and FT-IR spectra.
The calculated surface area of nano bentonite was 161.842 m2/gm, and total pore volume of 0.2196 cm3/gm.
The nanoscale bentonite particles diameter in the range of 52 nm at maximum intensity of AFM.
The FITR spectra assigned peaks; at 3392.22 and 1635.69 cm-1 is attributed to OH stretching (Al-OH and Si-OH) for bentonite, at 1159, 798.20 and 677.46cm-1 are assigned to characteristic bands of silicates; and peak at 500.08 cm-1 is responsible for Al-O-Si group deformation.
SEM analysis show that nano bentonite structure due to beneficiation and activation conditions.
The results of X-ray diffraction after activation observed that the intensity of the reflections of the characteristic peak of the gypsum and calcite belonging to the other minerals change due to destruction of the structure in the bentonite phases.
American Psychological Association (APA)
Hamadi, Adil Sharif& Numan, Riyad M.& Abbas, Thamirah Khidr& Rukan, Ghassan& Ali, Man& Quraysh, Abbas…[et al.]. 2015. Beneficiation pretreatment and chemical activation method for preparation and characterization of nano structure bentonite. Engineering and Technology Journal،Vol. 33, no. 9B, pp.1683-1692.
https://search.emarefa.net/detail/BIM-681253
Modern Language Association (MLA)
Hamadi, Adil Sharif…[et al.]. Beneficiation pretreatment and chemical activation method for preparation and characterization of nano structure bentonite. Engineering and Technology Journal Vol. 33, no. 9B (2015), pp.1683-1692.
https://search.emarefa.net/detail/BIM-681253
American Medical Association (AMA)
Hamadi, Adil Sharif& Numan, Riyad M.& Abbas, Thamirah Khidr& Rukan, Ghassan& Ali, Man& Quraysh, Abbas…[et al.]. Beneficiation pretreatment and chemical activation method for preparation and characterization of nano structure bentonite. Engineering and Technology Journal. 2015. Vol. 33, no. 9B, pp.1683-1692.
https://search.emarefa.net/detail/BIM-681253
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1690-1692
Record ID
BIM-681253