Preparation method of Cu/Mg/Fe-LDO loaded Pd catalyst and application of Cu/Mg/Fe-LDO loaded Pd catalyst in preparation of 1, 4-butanediol

The invention relates to the field of catalyst preparation, and discloses a preparation method of a Cu/Mg/Fe-LDO loaded Pd catalyst and application of the Cu/Mg/Fe-LDO loaded Pd catalyst in preparation of 1, 4-butanediol, and the preparation method comprises the following steps: dissolving copper salt, magnesium salt and iron salt in water to obtain a mixed solution A; mixing a sodium hydroxide solution and a sodium carbonate solution to obtain a mixed solution B; mixing the mixed solution A and the mixed solution B, crystallizing, filtering to obtain a precipitate, and sequentially washing, drying and grinding to obtain a Cu/Mg/Fe-LDH carrier; carrying out dipping treatment on the Cu/Mg/Fe-LDH carrier by using alkali liquor, washing to be neutral, and then drying; and loading Pd by adopting an equivalent-volume impregnation method, and then roasting to obtain the Cu/Mg/Fe-LDH loaded Pd catalyst. The dispersity of the active components is better, excellent stability is shown under the high-temperature conditi