Process for the purification of waste materials or industrial by-products comprising chlorine

US11938527B2 · kind B2 · utility

Assignee

• AMATEQ HOLDING GMBH · DE

Inventors

• Alexander Kehrmann · Xanten, DE
• Jan Hohlmann · Oberhausen, DE
• Carsten Nass · Kalkar, DE
• Gerhard Auer · Krefeld, DE
• Christian Adam · Berlin, DE
• Christopher Hamann · Berlin, DE
• Dirk Stolle · Berlin, DE

Key dates

• Filing date: Sep 4, 2018
• Grant date: Mar 26, 2024
• Expiry date: Feb 3, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/10
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present application relates to a process for the purification of waste materials or industrial by-products, the process comprising the steps of: a) Preparing a composition (C) by blending or mixing waste materials or industrial by-products comprising chlorine (B) with one or more materials comprising heavy metals (HM) b) Reacting (B) and (HM) by thermal treatment of (C) c) Separating evaporated heavy metal chloride compounds (HMCC) d) Obtaining a solid material after the thermal treatment step.