Catalyst for production of 1,4-butynediol and preparation method of catalyst

The invention discloses a catalyst for production of 1,4-butynediol and a preparation method of the catalyst, belongs to the field of catalyst research, more particularly relates to a load type catalyst for production of 1,4-butynediol in a slurry reactor and a preparation method of the catalyst. According to the method, nanosilicon dioxide which has a larger external specific surface is used as a carrier, copper and bismuth are attached to the carrier by adopting a settling and depositing method, the active components of the catalyst exist in a form of basic cupric carbonate, and the catalyst comprises the following components in percentage by mass: 20-50 percent of carrier, 35-70 percent of basic cupric carbonate and 2-15 percent of bismuth subcarbonate. The prepared catalyst has the characteristics of good activity and high selectivity and is easy to activate.