1, 4-butynediol hydrogenation catalyst as well as preparation method and application thereof

The invention discloses a 1, 4-butynediol hydrogenation catalyst as well as a preparation method and application thereof. The structure of the catalyst is shown as Ni-CuO/X-Al2O3, X is at least one of bismuth, arsenic and antimony, and the catalyst has the advantages of being high in active component loading capacity, good in catalytic activity, long in service life and the like. According to the preparation method of the catalyst, the waste Raney nickel catalyst is used as a nickel source and an aluminum source, resource recycling of the waste Raney nickel catalyst is achieved, the problem that at present, the inactivated Raney nickel catalyst is poor in recycling effect is solved, meanwhile, by means of interaction of quaternary ammonium salt and nickel, active metal penetrates into a catalyst pore channel and is fixed, and the catalytic activity of the catalyst is improved. Active metal nickel is further dispersed through vacancies generated by decomposition of basic cupric carbonate, a CuO coated structur