Patent · US Expired

Catalyst having a bimodal pore radius distribution

US6670303B1 · kind B1 · utility

22Cited by
34References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 25, 2000
Grant dateDec 30, 2003
Priority date
Expiry dateJul 25, 2020

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C2523/42
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Catalysts having a bimodal pore radius distribution comprisea) from 10 to 99.9% by weight of zirconium dioxide andb) from 0 to 60% by weight of aluminum oxide, silicon dioxide and/or titanium dioxide andc) from 0.1 to 10% by weight of at least one element of main group I or II, an element of transition group III, an element of transition group VIII, of the Periodic Table of the Elements, lanthanum and/or tin,with the proviso that the sum of the percentages by weight is 100.

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