Patent · US Expired

Preparation of high purity elements

US5513834A · kind A · utility

6Cited by
10References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 14, 1994
Grant dateMay 7, 1996
Priority date
Expiry dateNov 14, 2014

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01P2006/80
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Described is in situ refining high purity elements in Groups IIA and VIB of the Periodic Table in a hermetically sealed apparatus by distilling, condensing and zone refining material within the apparatus.

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