Synthesis of Methacrylic Acid by Vapor Phase Catalytic Oxidation of Methacrolein(Part 1) MoO<SUB>3</SUB>-V<SUB>2</SUB>O<SUB>5</SUB>-P<SUB>2</SUB>O<SUB>5</SUB>

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  • Yui Tomoyuki
    Tokyo Central Research Laboratory, Mitsubishi Gas Chemical
  • Abe Yoshimichi
    Rikagaku Kenkyusho (The Institute of Physical and Chemical Research)
  • Ogawa Hironori
    Rikagaku Kenkyusho (The Institute of Physical and Chemical Research)
  • Kitahara Masao
    Rikagaku Kenkyusho (The Institute of Physical and Chemical Research)

Bibliographic Information

Other Title
  • メタクロレインの気相接触酸化反応によるメタクリル酸の合成(その1)MoO <SUB>3</SUB>-V<SUB>2</SUB>O<SUB>5</SUB>-P<SUB>2</SUB>O<SUB>5</SUB>触媒
  • メタクロレインの気相接触酸化反応に関する研究　Ｉ　　メタクロレインの気相接触酸化反応によるメタクリル酸の合成　（１）　　ＭｏＯ?S３?T‐Ｖ?S２?TＯ?S５?T‐Ｐ?S２?TＯ?S５?T触媒

Description

The possibi ity of vapor phase catalytic oxidation of methacrolein to methacrylic acid was studied by using various metallic oxides and their combinations.<BR>A comparatively good selectivity of methacrylic, aeid was obtained by using MoO3-V2O5catalyst supported on silicagel (Table IN4). Further by adding phosphor pentoxide, both the yield and the selectivity for methacrylic acid were improved remarkably(Fig.6)<BR>. When the spongy aluminum having small surface area (1m2/g), and good thermal conductivity was used as a support better results were obtained, that is, a 43% yield of methacrylic acid and a 580/o selectivity for methacrylic acid unde, r the conditions of methacrolein. con6entration 3, 3%, oxygen/ ethacrolein molar ratio 1.5, water/methacrQlein molar, ti6115.0, , temperature 330eC and contact time 3.6sec(catalyst amount: 50 ml)(Fig.10).

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1975 (3), 481-489, 1975-03-10

    The Chemical Society of Japan

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