##tihuan2##Solution pH slightly affected the removal of phosphate by modified kaolin in the range of 4–7. The maximum adsorption capacity of the modified kaolin sintered at 600 °C (KS600) was 4.07 mg g −1, which is eleven times higher than that of raw kaolin.
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##tihuan2##Mullite with an aspect ratio of 82.08 was prepared by adding 4.5 wt% Ca 3 (PO 4) 2 to citric acid activated kaolin. Phosphorus (P) has a significant role in the formation of well-developed mullite whiskers. The mechanisms were discussed based on X-ray diffraction, FTIR, SEM, EDS and 31 P MAS NMR. The addition of P decreases the …
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##tihuan2##Algerian kaolin and phosphate raw material were used; with 20 mass%, up to 80 mass% kaolin; for the production of ceramic composites build on the hydroxyapatite (HA), ... contents are enriched while the MgO content is slightly increased. On the other side, reducing the kaolin content led to a slight decrease in the SiO 2 and Al 2 O 3 …
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##tihuan2##Herein, a three-dimensional structured kaolin/hydrothermally treated red phosphorus (K/HRP) composite photocatalyst was synthesized. The composition ratio was optimized, and the K 7 /HRP composites (contained 7%) exhibited the highest photocatalytic activity.
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##tihuan2##The direct effects of dissolved organic matter (DOM) on the sorption of orthophosphate onto gibbsite, goethite, and kaolin were examined using a one-point …
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##tihuan2##The beneficial effect of kaolin spray on phosphorus content could partly be attributed to the increased growth as well as to gas exchange, thus enhancing nutrient …
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##tihuan2##This work aimed to utilize four low-cost materials, namely activated carbon (AC), activated carbon–nanoparticle composite, kaolin, and olive cake, for phosphate removal. Batch mode tests were used to evaluate the performance of the adsorbents. The parameters affecting the adsorption process such as pH, initial concentration, mixing …
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##tihuan2##Kaolin/pectin Review Kaolin/pectin had some beneficial effect in reducing nonspecific diarrhea. Ericsson, 2005 Kaolin/pectin Review Efficacy studies in calves are lacking. Not recommended for treating calf diarrhea. Constable, 2009 1% kaolin Clinical trial in weaned piglets experimentally infected with enterotoxigenic E. coli (O141:F18ac)
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##tihuan2##This work focuses on the reaction between kaolin and natural phosphate. Four mixtures were prepared by varying the kaolin content 20–80% by weight with a step of 20. All powders were ground and dried and then pressed in …
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##tihuan2##The application of ferrate (Fe(VI)) and ferric chloride as coagulants for treating phosphate wastewater in the presence of kaolin clay particles was comparatively studied. The phosphate removal processes by ferrate and ferric chloride assisted with kaolin clay particles were investigated under different Fe/P molar ratios. At neutral pH, …
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##tihuan2##also increased the phosphorus content over that of the unfortified by 56.31%, 53.21% and 36.75%, respectively. The result of the mineral content ... kaolin gives high content of phosphorus which ...
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##tihuan2##Graphical abstract. The phosphate compounds react at 1100 °C with aluminium and silica from kaolin to provide new compounds which are AlPO 4 and KAlSi 2 O 6.We retain that including phosphate compounds, it is possible to gain more than 200 °C of sintering temperature while having the same strength or even a greater one than that …
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##tihuan2##The direct effects of dissolved organic matter (DOM) on the sorption of orthophosphate onto gibbsite, goethite, and kaolin were examined using a one-point phosphorus sorption index and the linear Tempkin isotherm model. DOM extracted from fresh and decomposed agricultural residues, as well as model organic and humic acids, were used. Changes in …
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##tihuan2##Section snippets Materials. Kaolin clay (calcined), Mg(NO 3) 2 ⋅6H 2 O, Al(NO 3) 3 ⋅9H 2 O, Na 2 CO 3, NH 4 HCO 3, HCl, NaOH, and KH 2 PO 4 were analytical grade, and used as-received from Kermel Chemical Reagent Co., Ltd. (Tianjin, China). Phosphate stock solution was prepared by dissolving appropriate amount of KH 2 PO 4 …
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##tihuan2##For this reason, modified kaolin rich in phosphate groups may be an effective method for the recovery of REEs. In this work, we synthesized phosphoric acid modified kaolin (P-K) by a simple mechanical ball-milling process, which could selectively recover REEs from wastewater stream. ... and the content of NH 4 +-N in the solution …
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##tihuan2##In an orchard experiment in 2016, the effects of foliar application of kaolin, potassium, phosphorus and their different combinations were examined on photosynthesis parameters of 8-year-old pistachio trees cv. "Kalle-ghouchi" based on a randomized complete block design as factorial with two factors (spray treatments at 10 levels and …
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##tihuan2##The direct effects of dissolved organic matter (DOM) on the sorption of orthophosphate onto gibbsite, goethite, and kaolin were examined using a one-point phosphorus sorption index and the linear Tempkin isotherm model. DOM extracted from fresh and decomposed agricultural residues, as well as model organic and humic acids, …
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##tihuan2##Sediment, composed of a complex assemblage of minerals, controls the fate and behaviour of P in aqueous environments and affects trophic status. In this study, P adsorption was studied on minerals including quartz, hematite, potassium feldspar, montmorillonite, kaolin, and calcite (i.e., the main co …
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##tihuan2##1. Introduction. Phosphorus is an essential element that exists in all living organisms (Kong et al., 2023) and it is one of the key nutrients that can significantly limit the growth of crops (Peng et al., 2022; Tao et al., 2022).The global use of phosphate-based fertilizers is a result of intensified modern agricultural practices (Zheng et al., 2023).
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##tihuan2##This investigation examines the effect of clamshell ash (CSA) and lime additives on the physico-mechanical characteristics of kaolinite clay soil stabilized at the optimum silica fume content.
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##tihuan2##Very few studies reported that the combination of phosphate rocks and clay boosted the mechanical properties [3,17]. Algerian kaolin and phosphate raw material were used; with 20 mass%, up to 80 mass% kaolin; for the production of ceramic composites build on the hydroxyapatite (HA), mullite (M) and anorthite (A) phases [3,18]. …
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##tihuan2##In this study, due to the adsorption of phosphate by MC [16], the phosphate content in the MC-treated pond fluctuated less than that in the control pond through time (Figure 2). Similarly, the ...
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##tihuan2##Kaolin is one of the more important industrial clay minerals. Kaolin is comprised predominantly of the mineral kaolinite, a hydrated aluminum silicate. As noted in Chapter 2, other kaolin minerals are dickite, nacrite, and halloysite. Dickite and nacrite are rather rare and usually are found mixed with kaolinite in deposits of hydrothermal origin.
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##tihuan2##Kaolin extends the colorant, sharpens dot formation by imparting thixotropy, and improves holdout. Kaolin is used in low viscosity inks for flexographic . Some …
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##tihuan2##Statistics and information on the worldwide supply of, demand for, and flow of the mineral commodities ball clay, bentonite, common clay, fire clay, fuller's earth, and kaolin. Six types of clays are mined in the United States: ball clay, bentonite, common clay, fire clay, fuller's earth, and kaolin.
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##tihuan2##The effects of phosphate treatment of kaolin in the final proprieties of crude and fired kaolin products are investigated in relation to the amount of phosphoric acid …
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##tihuan2##1. Introduction. Phosphorus (P) has been largely applied in many industries, which inevitably produced industrial wastewater containing both inorganic and organic P, such as circulating cooling water, membrane concentrate, and textile wastewater [1], [2], [3].Among these phosphorus species, inorganic phosphorus usually presents …
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##tihuan2##sonicated for 1˛h to reduce the particle size of kaolin. Saturated solution of 2˛g DAhP was added to the kaolin suspension and stirred overnight on magnetic stirrer at room temperature for proper interaction of DAhP with kaolin. The suspension was then soni-cated, and the supernatant liquid obtained was kept to check any loss of phosphate. The
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##tihuan2##The phosphate compounds react at 1100 °C with aluminum and silica from kaolin to provide new compounds which are AlPO 4 and KAlSi 2 O 6. The effects of phosphate additives on the densification, on the mechanical properties and on the …
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