Abstract: The invention is directed to a process and apparatus for recovering metals from bottom ash from incineration plants, such as municipal waste incineration plants. The process includes directing a feed containing ash into an oxidizing unit, wherein at least part of the metals is oxidized in the presence of one or more acids and at least one oxygen donor, thus producing a stream comprising metal ions. From this stream the metals of interest are selected and converted into metallic form.
Type:
Grant
Filed:
October 6, 2010
Date of Patent:
May 5, 2015
Assignee:
Elemetal Holding B.V.
Inventors:
Jeroen Pieter Netten, Silvan Johan Thus
Abstract: The invention is directed to a process and apparatus for recovering metals, in particular for recovering metals from bottom ash from incineration plants, such as municipal waste incineration plants. In accordance with the invention, a feed containing ash is fed to an oxidizing unit, wherein at least part of said metals is oxidized in the presence of one or more acids and at least one oxygen donor, thus producing a stream comprising metal ions. From this stream the metals of interest are selected and converted into metallic form.
Type:
Application
Filed:
October 6, 2010
Publication date:
September 20, 2012
Applicant:
ELEMETAL HOLDING B.V.
Inventors:
Jeroen Pieter Netten, Silvan Johan Thus