نتایج جستجو برای: bentonite refining

تعداد نتایج: 14253  

2006
SABRI MAHMOUD

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...

2018
Eko Prasetyo Kuncoro Thin Soedarti Trisnadi Widyaleksono Catur Putranto Handoko Darmokoesoemo Nanda Rizki Abadi Heri Septya Kusuma

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...

2015
Alvaro D. Sponza Natalia J. Fernandez David Yang Karla A. Ortiz Abel E. Navarro

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...

2013
Muhammad Nafees Amir Waseem Abdur Rehman Khan

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...

2003
L. Calarge Bruno Lanson A. Meunier M. L. Formoso L. CALARGE B. LANSON A. MEUNIER M. L. FORMOSO

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...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
e. jahed m.h. haddad khodaparast kh. behzad m. elahi a. koocheki

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 ...

Journal: :E3S web of conferences 2023

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.

Journal: :Crystals 2022

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...

Journal: :Journal of Ecological Engineering 2023

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...

Journal: :Journal of biomedical research & environmental sciences 2021

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید