Patent · US Expired

Shaped catalysts

US6518220B2 · kind B2 · utility

34Cited by
13References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 14, 2001
Grant dateFeb 11, 2003
Priority date
Expiry dateFeb 14, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/1397
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Shaped catalysts for heterogeneously catalyzed reactions are in the form of hollow cylinders or annular tablets whose end faces are rounded both to the outer edge and to the edge of the central hole, i.e. have no right-angled edges.

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