Preparation of 1,4-butynediols catalyst and preparation method and application thereof

The invention discloses preparation of a 1,4-butynediols catalyst and a preparation method and an application thereof. The catalyst takes silicon oxide as a carrier and takes a copper-bismuth compound as an active component, by mass percentage, copper oxide accounts for 30-60%, bismuth oxide accounts for 2-5%, and the balance of silicon oxide. the particle diameter with 10-40 [mu]m of the catalyst accounts for at least more than 80%, specific surface area is 20-50 m /g, and pore volume is 0.1-0.5 cm .g , aperture distributed between 10-50 nm accounts for more than 85%, and the bulk density is 1.0-1.8 g.mL . The catalysts is prepared by using a precipitation method. The catalyst has the advantages of good wear resistance, uniform catalyst particle, and difficult loss during a usage process.