Patent · US Active

Method and plant for removing arsenic and/or antimony from flue dusts

US10081848B2 · kind B2 · utility

0Cited by

6References

6Claims

0Family size

Assignee

OUTOTEC (FINLAND) OY · FI

Inventors

Jochen Güntner · Alzenau, DE
Peter Sturm · Karben, DE
Maciej Wrobel · Karben, DE
Jörg Hammerschmidt · Rückingen, DE
Ake Holmström · Katthammarsvik, SE
Gunnar Berg · Kristiansand, NO

Key dates

Filing date	Oct 2, 2013
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Oct 13, 2033

Classification

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

Abstract

A method for the treatment of flue dusts containing arsenic and/or antimony from pyrometallurgical methods, wherein a reducing agent is added to the flue dusts, the flue dusts are heated together with the reducing agent, and volatile components are separated from a slag. The reducing agent is a carbonaceous compound.

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