Patent · US Active

Recovery of metals from industrial wastewater of low metal concentration

US10968122B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF E.V. · DE

Inventors

Rohan Jain · King of Prussia, US
Katrin Pollmann · Dresden, DE
Falk Lehmann · Dresden, DE

Key dates

Filing date	Apr 3, 2019
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Apr 3, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to a multi-step method for the selective, environmentally friendly and economical recovery of non-ferrous metals from industrial wastewater. The method is based on the principle of the complexing of the non-ferrous metals, separating out of the complexes and subsequent decomplexing of the non-ferrous metals. Siderophores are used as complexing agents. The siderophores are recovered within the process. The method can be used in particular even in the case of low non-ferrous metal concentrations. The method is efficient, environmentally friendly and economical.

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