Patent · US Expired

Removal of mercury from liquids

US4077856A · kind A · utility

0Cited by

5References

10Claims

0Family size

Assignee

BASF SE

Inventors

Wolfgang Habermann
Dieter Stockburger · Havelsee, DE
Peter Thoma · Mannheim, DE
Gotthard Csizi

Key dates

Filing date	Apr 9, 1976
Grant date	Mar 7, 1978
Priority date	—
Expiry date	Apr 9, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S204/03
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a process for the removal of mercury by treatment with elementary nickel an external voltage is applied to maintain the potential of the nickel at a value which differs from the potential of the reversible hydrogen electrode in the liquid concerned by not more than from -250 mV to +50 mV. The treatment is carried out at temperatures of from 80.degree. to 230.degree. C.

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