エチレンの酸化によるアセトアルデヒドの合成研究

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タイトル別名
  • Synthesis of Acetaldehyde by the Oxidation of Ethylene
  • エチレン ノ サンカ ニ ヨル アセトアルデヒド ノ ゴウセイ ケンキュウ

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Synthesis of acetaldehyde by the oxidation of ethylene with PdCl2 catalyst has been invtseigated by separating it into a carbonylation reaction and a metal oxidation reaction, respectively, in vapor-liquid catalytic reaction. It was concerned that the velocity of absorption of ethylene in the carbonylation reaction depends on a diffusion velocity or a reaction velocity according to the condition and the following equation was found to be applicable in the latter case:-dC2H4/dt=1.8×106exp(-7.4×103/RT)[Pd++]1.0[Cl-]-2.0P1.0C2H4 In the metal oxidation reaction the velocity was usually decided by the oxidation step of CuCl. It was confirmed that the velocity of absorption of oxygen were controlled by diffusion step or reaction step and the following equations were found to be applicable in each case: Reaction-controlled. -do2/dt=2.3×102exp(-3.4×103/RT)Po21.0 Diffusion-controlled. -do2/dt=3.4×10-2Po21.0G1.1 Then it was clarified that above results are applicable for a continuous reaction by combination of these two reactions.

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