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kaolin

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Journal Article
Published: 01 August 2023
Clays and Clay Minerals (2023) 71 (4): 478–495.
... are regoliths in which the granite texture is preserved, and the feldspars are almost completely kaolinized. In the ZAHE, the original texture of the granitic rock is lost, and the main clay mineral is smectite. The mineralogical composition is similar, with kaolinite, smectite, mica, quartz, scarce feldspar...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2023
Clay Minerals (2023) 58 (2): 224–233.
...Bijan Taheri Abstract This study reports a leaching process along with a novel physical pretreatment technique to remove iron impurities from kaolin using oxalic acid. A detailed examination of the physical properties of the minerals confirmed that almost none of the leaching-resistant iron oxides...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2023
Clay Minerals (2023) 58 (2): 121–142.
... mineralogical evidence of the PETM and subsequent hyperthermal events in a near-equatorial region represented by the Akli Formation in the Barmer Basin, India. The 32 m-thick succession of the Akli Formation shows abrupt changes in smectite and kaolin abundances preceding, during and succeeding the PETM event...
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Journal Article
Journal: Clay Minerals
Published: 18 April 2023
Clay Minerals (2023) 58 (1): 57–66.
...Jiaquan Li; Zhiwei Huang; Qian Wang; Fengnian Zhang; Yang Miao; Feng Gao Abstract In this study, aluminium fluoride trihydrate (AlF 3 ⋅3H 2 O) was used to inhibit the sintering of calcined coal-series kaolin (CCSK). In addition, the oil absorption properties of CCSK were studied. The particle-size...
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Journal Article
Journal: Clay Minerals
Published: 06 October 2022
Clay Minerals (2022) 57 (2): 97–104.
...Zhenying Liu; Nan Xie; Shouwu Huang; Hanxin Zhang; Chongmei Wu; Kai Cui; Yin Liu; Hongzheng Zhu; Jinbo Zhu; Changguo Xue ABSTRACT High-performance mullite-based composite ceramics were prepared successfully using natural kaolin and alumina as raw materials and ZrO 2 as an additive. The influence...
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Journal Article
Journal: Clay Minerals
Published: 01 September 2022
Clay Minerals (2022) 57 (3-4): 183–191.
..., processes have been developed to eliminate contaminants, such as iron, and provide alternatives to the used contaminated materials that, after being treated, meet quality criteria. In our previous research, we developed an electrochemical process for kaolin whitening at the laboratory level and bench scale...
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Journal Article
Published: 01 June 2022
Clays and Clay Minerals (2022) 70 (3): 386–404.
...Yolanda Sánchez-Palencia; David Bolonio; Marcelo F. Ortega; María-Jesús García-Martínez; José Eugenio Ortiz; Fernando Rayo; Lucía Arregui; Susana Serrano; Juan F. Llamas; Laureano Canoira Abstract Kaolin waste dumps contain a huge volume of material that cannot be commercialized due to the presence...
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Journal Article
Journal: Geology
Published: 03 February 2022
Geology (2022) 50 (5): 532–536.
... position. We used a tabletop split box apparatus filled with wet kaolin clay to model the evolution of a vertical precut fault (F0) that has a 15° restraining angle and a 2 cm stepover that follows the basal discontinuity ( Fig. 1A ). The viscosity and strength scaling relationships between the wet...
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Journal Article
Journal: Clay Minerals
Published: 31 January 2022
Clay Minerals (2021) 56 (4): 269–283.
...Amr B. ElDeeb; Vyacheslav N. Brichkin; Martin Bertau; Mahmoud E. Awad; Yulia A. Savinova Abstract The present work aims to increase the alumina percentage recovery (APR) extracted from kaolin via the addition of 0.5–4.0 wt.% charcoal as a thermochemical fluxing agent in the lime-sintering process...
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Journal Article
Journal: Clay Minerals
Published: 17 May 2021
Clay Minerals (2021) 56 (1): 75–84.
...Zhe Wang; Hong Li; Haiyan Chen; Juan Lv; Hao Leng; Junhui Xiao; Shuai Wang Abstract Steam jet milling was applied for the first time to ultra-fine grind the filter cake (moisture content 23.80%) produced by a kaolin concentrator. The material was dehydrated and dried simultaneously during grinding...
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Journal Article
Journal: Clay Minerals
Published: 01 March 2021
Clay Minerals (2021) 56 (1): 28–36.
...Shu-Qin Zheng; Ou Chen; Si-Cheng Liu; An Li; Li-Jun Li; Yong-Bing Yuan; Ceng Zhang Abstract NaY zeolite was synthesized from kaolin/dimethyl sulfoxide (DMSO) intercalation composites using an in situ crystallization technique. The effects of the intercalation ratios and the amounts of the kaolin...
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Journal Article
Journal: Clay Minerals
Published: 23 December 2020
Clay Minerals (2020) 55 (4): 293–302.
...Jessyka Padilla; Alexander Guzman; Daniel Molina, V; Juan Carlos Poveda-Jaramillo Abstract To produce an optimized matrix for the in situ crystallization of zeolite Y, a commercial kaolin chemically treated with NaOH solution at 97°C for 24 h and thermally transformed from 750 to 1100°C was studied...
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Journal Article
Published: 01 August 2020
Clays and Clay Minerals (2020) 68 (4): 319–333.
...Mohammadreza Izadifar; Peter Thissen; Annett Steudel; Reinhard Kleeberg; Stephan Kaufhold; Jonas Kaltenbach; Rainer Schuhmann; Frank Dehn; Katja Emmerich Abstract Kaolins and clays are important raw materials for production of supplementary cementitious materials and geopolymer precursors through...
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Journal Article
Published: 01 August 2020
Clays and Clay Minerals (2020) 68 (4): 373–393.
... clay minerals is still unclear. The objective of the current study was to investigate the effect of alkali concentration on swelling characteristics of natural and alkali-transformed kaolinitic clays. The study was complemented further with micro-level investigations. Red earth and kaolin, which...
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Journal Article
Journal: Clay Minerals
Published: 27 May 2019
Clay Minerals (2019) 54 (2): 209–217.
...Danyal Karbalaei Saleh; Hadi Abdollahi; Mohammad Noaparast; Alireza Fallah Nosratabad Abstract This study examines the leaching of aluminium from calcined kaolin (metakaolin) with citric, oxalic and lactic acid and binary combinations of these organic acids. The investigated parameters were...
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Journal Article
Published: 15 April 2019
Clays and Clay Minerals (2019) 67 (2): 143–153.
..., and the materials were shown to be potential candidates for the removal of BB-41 dye. * E-mail address of corresponding author: dr_eng_mhag@yahoo.com 08 03 2018 03 12 2018 Copyright © Clay Minerals Society 2019 2019 Clay Minerals Society Basic Blue 41 Jordanian Kaolin Removal...
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Journal Article
Journal: Clay Minerals
Published: 01 March 2019
Clay Minerals (2019) 54 (1): 67–73.
...Ali Boukhemkhem; Kamel Rida; Alejandro H. Pizarro; Carmen B. Molina; Juan J. Rodriguez ABSTRACT An iron catalyst supported on the modified Tamazert kaolin has been prepared and tested in catalytic wet peroxide oxidation using phenol and 4-chlorophenol (4-CP) as target compounds (100 mg/L initial...
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Journal Article
Journal: Clay Minerals
Published: 01 December 2018
Clay Minerals (2018) 53 (4): 665–674.
...Emmanuel Ajenifuja; Abimbola P.I. Popoola; Kabir O. Oyedotun; Olawale Popoola ABSTRACT Kaolin and diatomite are abundant and widely available geological materials that may immobilize or stabilize functional chemical species on their surfaces for various applications. Acid-treated kaolin...
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Journal Article
Journal: Clay Minerals
Published: 01 September 2018
Clay Minerals (2018) 53 (3): 515–524.
...Gürsel Yanık; Rasim Ceylantekin; Eda Taşçı ABSTRACT The Gümüşköy kaolin clay deposit, located ~40 km northwest of Kütahya, Turkey, has promising reserves for ceramic production. In order to evaluate the potential use of this region, five representative clay samples were collected and characterized...
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Journal Article
Journal: Clay Minerals
Published: 01 September 2018
Clay Minerals (2018) 53 (3): 471–485.
...Angel Sanz; Joaquín Bastida; Angel Caballero; Marek Kojdecki ABSTRACT Compositional and microstructural analysis of mullites in porcelain whitewares obtained by the firing of two blends of identical triaxial composition using a kaolin B consisting of ‘higher-crystallinity’ kaolinite or a finer...
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