Patent · US Expired

Porous catalyst for the hydrogenation of maleic anhydride to tetrahydrofuran

US6888011B2 · kind B2 · utility

5Cited by
13References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 7, 2001
Grant dateMay 3, 2005
Priority date
Expiry dateMay 2, 2022

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J37/0018
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A hydrogenation catalyst which is suitable, in particular, for the hydrogenation of maleic anhydride and its derivatives to THF or its derivatives comprises copper oxide and at least one further metal or compound thereof, preferably an oxide, selected from the group consisting of Al, Si, Zn, La, Ce, the elements of groups IIIA to VIIIA and the elements of groups IA and IIA and having a pore volume of ≧0.01 ml/g for pore diameters of >50 nm and a ratio of the pore volume of macropores having a diameter of >50 nm to the total pore volume for pores having a diameter of >4 nm of >10%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.