MANUFACTURING METHOD OF HYDROGEN CYANIDE

To provide a manufacturing method of hydrogen cyanide, that is capable of lowering temperature of a heat medium used more than before, and of suppressing heat medium cost and equipment cost.SOLUTION: A manufacturing method of hydrogen cyanide comprises a step (A) of conducting reaction in a vapor ph...

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Bibliographic Details
Main Authors HARA MASANAO, KUWAJIMA MANABU, SAGAWA EIJI
Format Patent
LanguageEnglish
Japanese
Published 25.04.2023
Subjects
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
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Summary:To provide a manufacturing method of hydrogen cyanide, that is capable of lowering temperature of a heat medium used more than before, and of suppressing heat medium cost and equipment cost.SOLUTION: A manufacturing method of hydrogen cyanide comprises a step (A) of conducting reaction in a vapor phase while supplying methanol and oxygen to a reaction vessel in the presence of a catalyst containing oxide of molybdenum; and a step (B) of conducting ammoxidation reaction in a vapor phase while supplying methanol, oxygen and ammonia to the reaction vessel, after the step (A). The step (A) and the step (B) are performed in a flow type.SELECTED DRAWING: None 【課題】従来よりも使用される熱媒の温度を低くすることができ、熱媒コスト及び設備コストが抑えられるシアン化水素の製造方法を提供する。【解決手段】モリブデンの酸化物を含有する触媒の存在下、反応器にメタノールと酸素とを供給しながら、気相で反応させる工程（Ａ）と、前記工程（Ａ）に続いて、前記反応器にメタノールと酸素とアンモニアとを供給しながら、気相でアンモ酸化反応させる工程（Ｂ）と、を有し、前記工程（Ａ）及び前記工程（Ｂ）が流通形式で行われることを特徴とする、シアン化水素の製造方法。【選択図】なし
Bibliography:Application Number: JP20210168265