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Calcium silicates synthesised from industrial residues with the ability for CO2 sequestration [PDF]
, 2014 This work explored several synthesis routes to obtain calcium silicates from different calcium-rich and silica-rich industrial residues. Larnite, wollastonite and calcium silicate chloride were successfully synthesised with moderate heat treatments below
Morales Flórez, Víctor +4 more
core +1 more source
EFSA Journal, 2018 The EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS) provides a scientific opinion re‐evaluating the safety of calcium silicate (E 552), magnesium silicate (E 553a) and talc (E 553b) when used as food additives.
EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS) +29 more
doaj +1 more source
Trimethylsilylation of Calcium Silicate
The Journal of the Society of Chemical Industry, Japan, 1971 ケイ酸カルシウムの水熱合成条件の確立とケイ素無機高分子の利用面を開発するため基礎研究を行なった。各種のケイ酸カルシウムについて, レンツのトリメチルシリル化法を採用し, 元素分析, 分子量測定, 赤外吸収分析を行なった結果, 不溶性三次元ブロック構造, 可溶性揮発性の線状構造, 可溶性不揮発性梯形構造の三つのポリシリケート誘導体を分離した。この結果, 水熱合成反応で低温短時間から得られたものを原料として生成したポリシリケートの分子量は小さく, 高温長時間からのものは大きい分子量をもつことが判明した。従って, ケイ酸カルシウム製造時の水熱反応段階でシロキサン鎖の縮合成長反応が順次進行しているものと考えられる。また, 粘土を添加したトバモライトは, Si-O-Siのシロキサン鎖が Si:Al=5～6 ...
Koji KOMATSU +3 more
openaire +2 more sources
potassium calcium silicates sol gel
, 2019 An important part in energy supply is the burning of biomass. The ternary oxide system K2O-CaO-SiO2, first published by Morey et. al. is abundant in the slag of biomass combustion and subject of interest in recent studies.
Krammer, Hans Georg
core +2 more sources
Chemical diffusion of fluorine in melts in the system Na2OAl2O3SiO2 [PDF]
, 1985 The volatilization of fluorine from three melts in the system Na2OAl2O3SiO2 has been investigated at 1 atm pressure and 1200–1400°C. The melts chosen have base compositions corresponding to albite, jadeite and a peraluminous melt with 75 mole % SiO2 ...
Scarfe, Christopher M. +1 more
core +1 more source
Science and Engineering of Composite Materials, 2016 Sodium calcium silicate (Na2CaSiO4) is a bioactive silicate with Na2O, CaO and SiO2 as its basic components, which is similar to that of the composition of bioactive glasses.
Reddy P. Manohar +3 more
doaj +1 more source
Radiopacity evaluation of calcium silicate cements
BMC Oral Health, 2023 Abstract Background The aim of this study was to compare the radiopacity of calcium silicate cements using a digital imaging method. Methods Four calcium silicate cements, NeoMTA 2, OrthoMTA, ProRoot MTA, and ...
Sen, Havva Gozde +2 more
openaire +5 more sources
Hidraulicidad de los silicatos cálcicos
Materiales de Construccion, 1984 In spite of the largeness of this work we can consider it as a brief resume, since we have employed a little sample among all the wide bibliography existing on calcium silicates.
Ana Isabel Triviño, Fernando Triviño
doaj +1 more source
Preliminary Synthesis of Calcium Silicates using Oil Palm Leaves and Eggshells.
Bulletin of Chemical Reaction Engineering & Catalysis, 2020 A new synthetic procedure is described for the synthesis of calcium silicate derivatives, using natural resources such as eggshell (ES) for calcium and oil palm leaves (OPL) for silica, which do not require prepurification.
Salprima Yudha S +5 more
doaj +1 more source
, 2018 We investigate the impact of minor iron content on the crystallization behavior and thermal stability of hydrothermally treated calcium silicates for insulation at high temperatures. The impurity content of the raw materials (micro silica and quicklime),
Yuanzheng Yue +5 more
core +1 more source