水熱処理によるケイ酸マグネシウムの表面物性変化
スポンサーリンク
概要
- 論文の詳細を見る
Hereunder is given a report of experimental studies that have been performed of the adsorption of argon and pyridine, using magnesium silicate specimens prepared respectively by coprecipitation and by hydrothermal treatment. The heat of adsorption of argon have been obtained from adsorption isotherms at -196° and -191°C. The initial heats of adsorption of argon on two kinds of magnesium silicate specimens were about 6kcal/mole and 4kcal/mole, respectively. The gradual fall, on the isosteric heat curve against coverage was observed at an early stage of adsorption on the sample through the hydrothermal treatment, but the secondary peak after the gradual fall appeared in the heat curve on the sample through the coprecipitation method. The specific surface area vs. SiO2/MgO did not agree with the amount of the acid point vs. SiO2/MgO which was obtained by the adsorption of pyridine.These facts reveal the fact that both kinds of magnesium silicate specimens have heterogeneous surfaces.The amount of the acid point on the sample prepared by the hydrothermal treatment was less than that on the coprecipitated sample.It is concluded that the surface of the magnesium silicate specimens subjected to hydrothermal treatment has smaller amount of acid points, but these acid points are stronger than those on the surface of coprecipitated specimens.
- 社団法人 日本材料学会の論文
著者
関連論文
- 液相クロマトグラフィーを用いシアノ酢酸メチルを高収率に得る改良法
- C2〜C4オレフィンをアルキル化剤とするm-アルキルフエノールの製造
- カオリンパップの塑性粘度変動について
- 合成ケイ酸アルミン酸マグネシウムの水熱処理による物性変化
- アンミン銅錯体による脂肪酸のアミノ化
- Pd触媒によるPiperazineの脱水素反応
- 制酸剤(ケイ酸マグネシウム)の結合性の持続性に及ぼす影響
- 微粉けい酸アルミン酸マグネシウムの圧縮特性
- 第9回粉体に関する討論会を終わって
- 二元系ニッケル触媒における構造と活性
- 合成ケイ酸アルミニウムの制酸能と構造の関係
- 水熱処理によるケイ酸マグネシウムの表面物性変化