MANUFACTURING METHOD OF COMBUSTION ASH RICH IN SILICON DIOXIDE AND MANUFACTURING METHOD OF TETRA-ALKOXYSILANE WITH COMBUSTION ASH RICH IN SILICON DIOXIDE AS RAW MATERIAL

To provide a manufacturing method of combustion ash rich in silicon dioxide having improved reactivity, and to provide a manufacturing method of alkoxysilane with combustion ash rich in silicon dioxide obtained from the manufacturing method as a raw material.SOLUTION: A method for manufacturing comb...

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Hauptverfasser: OTSUKI SHIGERU, SAI JUNTETSU, OKABE HARUMI, FUKAYA KUNIHISA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a manufacturing method of combustion ash rich in silicon dioxide having improved reactivity, and to provide a manufacturing method of alkoxysilane with combustion ash rich in silicon dioxide obtained from the manufacturing method as a raw material.SOLUTION: A method for manufacturing combustion ash rich in silicon dioxide, comprising wet pulverizing combustion ash containing silicon dioxide and then acid-treating, or wet pulverizing combustion ash containing silicon dioxide in the presence of an acid. A method for manufacturing an alkoxysilane, comprising a reaction step of reacting the combustion ash rich in silicon dioxide obtained by the method for producing the combustion ash rich in silicon dioxide with an alcohol compound to manufacture an alkoxysilane.SELECTED DRAWING: None 【課題】反応性の向上した二酸化珪素高含有燃焼灰の製造方法を提供することを課題とする。また、該製造方法により得られる二酸化珪素高含有燃焼灰を原料とするアルコキシシランの製造方法を提供することを課題とする。【解決手段】二酸化珪素を含有する燃焼灰を湿式粉砕してから酸処理する、または酸の存在下で、二酸化珪素を含有する燃焼灰を湿式粉砕する二酸化珪素高含有燃焼灰の製造方法。該二酸化珪素高含有燃焼灰の製造方法により得られた二酸化珪素高含有燃焼灰とアルコール化合物とを反応させてアルコキシシランを製造する反応工程を含む、アルコキシシランの製造方法。【選択図】なし