Patent · US Expired

Production of hydrogen fluoride

US4089936A · kind A · utility

2Cited by
8References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 20, 1976
Grant dateMay 16, 1978
Priority date—
Expiry dateSep 20, 1996

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01B7/194
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Ammonium fluoride is converted into a bifluoride by reaction with KF to form KF.HF, converting the latter to NaF.HF and heating said sodium bifluoride to form a solid product comprising NaF.

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