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US 12,667,827 B2Granted
Copper aluminum catalyst used for 1,4-butynediol production
AssigneeBASF SE
InventorsHuan Wang, Ai Ling Lv, Diana Carolina Galeano Nunez, Mario Soorholtz
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Abstract
The present invention is generally related to a novel catalytic composition and a method for the production of 1,4 -butynediol by catalytic ethynylation of formaldehyde, the said method is known as the Reppe reaction. The invented catalyst with lower copper content would provide an advantageous combination of improved utilization efficiency of copper, reduced copper leaching and enhanced filterability, and has minimal to no impact on catalytic activity.
Claims12
A catalytic composition, comprising:
- 5% to 35% by weight of Cu, calculated as CuO;
- 0.1% to 7% by weight of Bi, calculated as Bi2O3;
- and
- 60% to 95% by weight of Al, calculated as Al2O3.
1 more element
Dependencies are inferred from the claim text.