Specially designed for the synthesis reaction of butynediol (BYD) alkyne aldehyde, compatible with the Invista process, it is a core catalytic material that connects formaldehyde and acetylene raw materials and achieves efficient conversion, providing key support for BYD's large-scale high-quality production.

High strength hard shell, precise and controllable particle size, avoiding high pressure difference and extending service life
Bulk density as low as 1.5 kg/L, large specific surface area, uniform reaction, high activity and selectivity
Excellent low-temperature activity, long-term low-temperature operation, energy-saving and suppression of side reactions

Main parameters of catalyst:

Copper content: ≥ 53 Bismuth content: 2-4%   

Bulk density 1.5-1.7kg/L additive: appropriate amount