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    • 48. 发明专利
    • Production of hydroxycarboxylic acid derivative
    • 生产羟基羧酸衍生物
    • JPS59139341A
    • 1984-08-10
    • JP761183
    • 1983-01-20
    • Mitsubishi Gas Chem Co Inc
    • SUZUKI TAKASHIHASHIMOTO SHIYOUICHIROUOSAKU MASAMINAKANO RIAKO
    • C07C69/675B01J29/00C07B61/00C07C51/00C07C51/12C07C59/01C07C59/125C07C67/00C07C69/708
    • C07C51/12C07C59/06C07C59/13C07C59/08C07C59/215C07C59/125
    • PURPOSE: To produce the titled compound economically in an industrial scale, by reacting an aliphatic aldehyde with CO in the presence of a specific crystalline aluminosilicate having high activity and heat resistance and long life as a catalyst, keeping the level of the aldehyde in the reaction liquid below a specific level.
      CONSTITUTION: A hydroxycarboxylic acid derivative is prepared by reacting an aliphatic aldehyde with CO in a reaction medium such as acetic acid, propionic acid, etc. The reaction is carried out in the presence of a crystalline aluminosilicate catalyst having X-ray diffraction angles of at least 7.9°±0.3°, 8.8°±0.3°, 23.2°±0.3°, 23.7°±0.3° and 24.4°±0.3° (effective to facilitate the handling and reaction operation), keeping the concentration of the aliphatic aldehyde in the reaction liquid to ≤15wt%.
      USE: Chemical detergent, intermediate raw material for organic synthesis, raw material polymer, and additive.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:通过在具有高活性,耐热性和长寿命的特定结晶硅铝酸盐作为催化剂存在下,通过使脂族醛与CO反应生成标准化合物,保持醛在反应中的水平 液体低于特定水平。 构成:羟基羧酸衍生物通过使脂族醛与CO在乙酸,丙酸等反应介质中反应来制备。反应在具有X射线衍射角为at的结晶硅铝酸盐催化剂存在下进行 至少7.9度+或-0.3度,8.8度±或-3.3度,23.2度±或-0.3度,23.7度±或-3.3度。 和24.4度±或-0.3度。 (有利于处理和反应操作),使脂肪醛在反应液中的浓度保持在<= 15wt%。 用途:化学洗涤剂,有机合成用中间体原料,原料聚合物及添加剂。