sodium sulfate diatomite

Sodium sulfate–diatomite composite materials for

2015-9-1  Sodium sulfate in the composite functions as a phase change material (PCM) and diatomite as a structural skeleton for shape stabilization. It is found that sodium sulfate and diatomite have an excellent chemical compatibility with the PCM melting temperature at around 880 °C. It is shown that the composite containing 45% diatomite gives an optimal formulation in terms of energy density, salt

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Sodium sulfate–diatomite composite materials for high ...

2017-5-9  Both the sodium sulfate and diatomite are in solid form at the ambient temperature. The sodium sulfate was of analytic grade and purchased from China Xilong Chemicals Inc., whereas the diatomite...

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Use of diatomite as partial replacement for Portland ...

2009-1-1  Dry unit weight of the cement mortar was lower than the control mortar because of high porosity of diatomite. The expansion of the cement mortar bars immersed in 5% sodium sulfate solution decreased with increasing diatomite content and generally the sulfate resistance of the mortars was higher than that of the control mortar.

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Diatomite: A promising natural candidate as carrier ...

In the present study, three kinds of PCMs: polyethylene glycol (PEG), lithium nitrate, and sodium sulfate were respectively employed as the low-, middle- and high-temperature storage medium. A series of novel form-stable phase change materials (fs-PCMs) were tailor-made by blending diatomite and the three kinds of PCMs via a vacuum impregnation method or a facile mixing and sintering method.

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Diatomite: Its Characterization, Modifications and ...

The expansion of the cement mortar bars immersed in 5% sodium sulfate solution decreased with increasing diatomite content and generally the sulfate resistance of the mortars was higher than that of the control mortar. Diatomite is used as pozzolanic additives for Portland cement and mortars and grouts.

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Optimizing Phenanthrene and Anthracene Oxidation

2015-3-11  The treatment with sodium persulfate demonstrates advantages over hydrogen peroxide activation. Among the reasons is that the activated persulfate with the modified diatomite can produce sulfate and hydroxyl radicals. Thus, it can degrade a wide range of the different classes of contaminants.

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Diatomite: A promising natural candidate as carrier ...

2015-7-1  Diatomite, also called diatomaceous earth, is a type of natural amorphous siliceous mineral from geological deposits. Diatomite possesses a variety of unique properties including highly porous structure (80–90%), thermostability, excellent absorption capacity, chemical inertness, and relatively low price . Attributed to these advantages, diatomite can be used as a sort of feasible supporting material

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Separation of azodicarbonamide from surface of diatomite

2018-5-5  Sodium sulfate–diatomite composite materials for high temperature thermal energy storage [J]. Powder Technology, 2015, 282: 37–42. Article Google Scholar [12] AN O, G REN R, ZGÜR C. Purification of diatomite powder by acid leaching for use

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Ding, Yulong - University of Birmingham - School of ...

Qin, G.H. Leng, X. Yu, H. Cao, G. Qiao, Y. Dai, Y.L. Zhang, Y.L. Ding (2015) Sodium sulfate–diatomite composite materials for high temperature thermal energy storage, Powder Technology, in Press. J.G. Cao, Y.L. Ding and C.Y. Ma (2014) Aqueous Al2O3 nanofluids: the important factors impacting convective heat transfer, Heat and Mass Transfer, 50, 1639-1648.

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Pore structure modified diatomite-supported PEG

2016-9-1  As SiO 2 is the main component of diatomite, treatment with sodium hydroxide leads to the formation of soluble silicates SiO 32−, resulting in the creation of larger pores, flaws, cracks and a...

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Diatomite: Its Characterization, Modifications and ...

The expansion of the cement mortar bars immersed in 5% sodium sulfate solution decreased with increasing diatomite content and generally the sulfate resistance of the mortars was higher than that of the control mortar. Diatomite is used as pozzolanic additives for Portland cement and mortars and grouts.

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Pore structure modified diatomite-supported PEG

2016-9-1  Qin, Y. et al. Sodium sulfate–diatomite composite materials for high temperature thermal energy storage. Powder Technol. 282, 37–42 (2015). CAS Article Google Scholar

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Preparation of a modified diatomite filler via ...

2018-2-2  In this study, we sequentially modified diatomite (DM) particles with sodium dodecyl sulfate and polyethyleneimine with an impregnation method. Modified DM was used as both a filler and an anionic trash catcher in the papermaking process.

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Inorganically modified diatomite as a potential

Inorganic modification of diatomite was performed with the precipitation product of partially neutralized aluminum sulfate solution at three different mass ratios. The starting and the modified diatomites were characterized by SEM-EDS, FTIR, thermal analysis and zeta potential measurements and evalu

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Diatomite-entrapped hydrosulfate catalysts for the ...

2015-1-31  Diatomite-entrapped hydrosulfate catalysts with the enhanced acidity were prepared by impregnation and 20 wt% KHSO4/diatomite was selected as a heterogeneous catalyst for the catalytic nitration of toluene. The characterization of the catalyst by X-ray diffraction, Scanning electron microscopy, Brunauer–Emmett–Teller, Fourier-transform infrared spectroscopy and NH3 temperature

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聚乙烯亚胺改性硅藻土的制备与表征-Preparation and ...

Abstract: Using polyethyleneimine(PEI)and sodium dodecyl sulfate as modifiers, the surface of diatomite particles was modified by impregnation method. The adsorption of diatomite to PEI was investigated. The morphology, particle size, and Zeta potential of

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Barium Sulfate For Plastic

Blanc fixe isproduced by treating this solution with sodium sulfate to precipitate ultrafine barium sulfate. Diatomite products are generally differentiated by process and particle size. Flux-calcined diatomite is calcined at about 1200oC with sodium carbonate or sodium chloride.

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改性硅藻土吸附壳聚糖-胍盐微球及其在抗菌纸中的应用 ...

Meanwhile, the diatomite was modified using the sodium dodecyl sulfate (SDS), and the adsorption of chitosan-guanidine salt nanoparticles on the modified and native diatomite were studied. The results showed that no new peaks were found from the complex of ...

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Remediation of Phenanthrene-Contaminated Soil by ...

2017-7-10  An innovative diatomite-supported iron catalyst has been developed by using an impregnation process with a mixture of ferrous (Fe2+) and ferric (Fe3+) ions in the form of precipitated iron hydroxides. Raw and modified diatomite samples have been characterized by X-ray fluorescence and scanning electron microscopy. The main characterization results have revealed that modified

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Quantitative phase analysis and microstructural ...

2020-10-16  This paper aims at giving new insights into the impacts of the particle sizes of diatomite waste on the hydration properties of Portland cement from the perspective of quantitative analysis using Rietveld refinements method. XRD identification coupled with Rietveld quantitative phase analysis, as well as isothermal calorimetry and SEM observation, was performed.

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Diatomite: Its Characterization, Modifications and ...

The expansion of the cement mortar bars immersed in 5% sodium sulfate solution decreased with increasing diatomite content and generally the sulfate resistance of the mortars was higher than that of the control mortar. Diatomite is used as pozzolanic additives for Portland cement and mortars and grouts.

More

Barium Sulfate For Plastic

Blanc fixe isproduced by treating this solution with sodium sulfate to precipitate ultrafine barium sulfate. Diatomite products are generally differentiated by process and particle size. Flux-calcined diatomite is calcined at about 1200oC with sodium carbonate or sodium chloride.

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Catalytic degradation of Orange II in aqueous solution ...

Diatomite is a courtesy of Mount Sylvia Diatomite Pty Ltd in Queensland, Australia. Orange II sodium salt, iron(III) chloride hexahydrate (FeCl 3$6H 2O) and nickel(II) sulfate hexahydrate (NiSO 4$6H 2O) were supplied by Sigma-Aldrich. Sodium boro-hydride (NaBH 4) was purchased from Fluka Analytical. All

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International Journal of Pharmaceutics. This journal has ...

2017-2-7  In our previous study (Janićijević et al., 2014) food grade diatomite was modified with the precipitation product of partially neutralized aluminum sulfate solution at three levels. A significant increase in adsorbent loading with model drug diclofenac sodium (DS) was achieved with samples

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AnEffectiveandEfficientSamplePreparationMethodfor 2

2021-3-8  graphitized black carbon, C18, PSA, sodium sulfate anhy- drous,silica,alumina(neutraloralkaline),florisil,chitosan, and diatomite were added to

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Diatomite Sigma-Aldrich

Showing 1-1 of 1 result for "diatomite" Advanced Search. Structure Search. Relevance. Compare. Amano Lipase PS. Amano Lipase PS. Product Number Product Description SDS; 708011 (immobilized on diatomite) Pricing: Match Criteria: Product Name. Page 1 of 1. Support

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Sodium Sulphate Effect on Cement Produced with

2015-5-7  In this study, the blended cements produced by using the building stone waste were exposed to sulphate solution and the cement properties were examined. Prepared mortar specimens were cured under water for 28 days and then they were exposed to three different proportions of sodium sulphate solution for 125 days. Performances of cements were determined by means of compressive strength

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Quantitative phase analysis and microstructural ...

2020-10-16  This paper aims at giving new insights into the impacts of the particle sizes of diatomite waste on the hydration properties of Portland cement from the perspective of quantitative analysis using Rietveld refinements method. XRD identification coupled with Rietveld quantitative phase analysis, as well as isothermal calorimetry and SEM observation, was performed.

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利用剩余活性污泥制备洗涤用酶制剂的研究 - SCNU

2020-5-11  mmol/L glycine and 10 mmol/L magnesium sulfate. The commercial enzyme granules for detergent were prepared according to the formula of 4% composite enzyme powder, 10% diatomite, 10% soluble starch, 6% composite stabilizer and 70% sodium ...

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吴广峰 - ccut.cn

2019-1-19  04.Tong Zhang, Qi Lu, Yunxia Lü and Guangfeng Wu. Determination of critical micelle concentration of sodium dodecyl sulfate in butyl acrylate emulsions, Polymer Bulletin, 2015 (72): 2215-2225 (SCI 检索号: CP4DM, IF 1.371) 05.Guangfeng Wu, Hailong

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