نتایج جستجو برای: bentonite refining
تعداد نتایج: 14253 فیلتر نتایج به سال:
Abstraet--Jordanian natural kaolin and bentonite show good catalytic activity towards debutylating 2tert-butylphenol, and varying debutylation vs. isomerization selectivity after acid activation. The resulting catalytic activity of these samples is dependent on the acid employed for activation; the samples treated with acetic acid showed relatively low conversions, whereas those treated with hy...
The usage of wastes of algae would be admirable from environmental and solid waste management point of view. Thus, herein, this data set present a facile method for providing an adsorbent from mixture of algae waste-bentonite. The prepared adsorbent was applied to remove Pb2+ from aqueous solution. The characterization data of the adsorbent were analyzed using FTIR and SEM-EDX methods. The FTIR...
Chemical modifications of clay to remove methylene blue (MB) from aqueous solutions at room temperature were compared. Natural bentonite (NC) was modified by cation exchange with hexadecyltrimethylammonium chloride (HC), bencyltriethylammonium chloride (BC), and tetramethylammonium chloride (TC) to reverse the surface polarity of the hydrophilic bentonite. The adsorption of MB was studied and f...
Four cost effective organoclays were synthesized, characterized, and studied for the sorption of hydrophobic compounds (edible oil/grease and hydrocarbon oil) from aqueous solutions. Organoclays were prepared by cation exchange reaction of lattice ions (present onto the surface of laterite and bentonite clay minerals) with two surfactants, hexadecyl trimethyl ammonium chloride (HDTMA-Cl) and te...
A nearly monomineralic 1.5 m thick bentonite bed sampled in Melo (Uruguay) appears to be a pure high-charge montmorillonite: [Si3.94 Al0.06] (Al1.40 Fe0.11 Ti0.02 Mg0.49 Mn0.01) O10 (OH)2 Na0.01 K0.08 Ca0.18. However, contrasting swelling behaviors have been evidenced by fitting the experimental X-ray diffraction patterns recorded on oriented preparations of the same sample in different saturat...
in this study, response surface methodology was used to determine the optimum raw sugar beet juice purification process conditions using bentonite to produce inverted liquid sugar. for this purpose, impact of factors on the purification process such as bentonite concentration (1-5 gr/li), ph (3.5-6) and temperature (35-95 ˚c) was investigated. for each response, a second-order polynomial model ...
This study presents an experimentally identified derivatogram of bentonite from the Navbahor mine, texture bentonite, physical and chemical characteristics, composition, their analysis retaining substance used in preparation nanocatalysts based on Zolgel technology.
The current investigation deals with the fabrication of two various composite-based bentonite clay minerals. characterization and radiation shielding parameters for fabricated composites (calcinated ball-milled calcinated bentonite) were studied. X-ray diffraction was utilized to illustrate crystalline phase composites. Furthermore, Williamson Hall’s method used determine grain size both partic...
Modification of Java bentonite assists by the multi-step intercalation sodium and ammonium ions under low-temperature preparation. The adsorbent was examined to remove rhodamine B methylene blue dyes in an aqueous solvent. analysis structural changes conducted XRD showed peak shifting from 19.89° 16.1° specific spectra FTIR 2846.93 cm-1 due increase basal spacing intercalation. total capacities...
The effect of Polyethylene Oxide (PEO) with a molecular weight 10000g/mol on the rheological behavior bentonite suspension was examined in terms viscosity, yield stress and viscoelastic modulus (G’ G’’); characteristic complex behaviour montmorillonite water. A Physica MCR301 rheometer has been used to measure properties samples (6% bentonite) as well bentonite-PEO mixtures at different concent...
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