Conversion of viscous, reactive chlorine- and sulfur-containing production residues into solid products which can be dumped

US4138269A · kind A · utility

Assignee

• BASF SE

Inventors

• Bruno Sander · Ludwigshafen, DE
• Albrecht Mueller · Ludwigshafen, DE
• Hans Rupert Merkle · Ludwigshafen, DE
• Gerhard Janisch · Ludwigshafen, DE

Key dates

• Filing date: Aug 1, 1977
• Grant date: Feb 6, 1979
• Expiry date: Aug 1, 1997

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B09B3/25
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A process for converting viscous reactive chlorine- and sulfur-containing production residues into solid products which can be dumped, wherein the said residues are treated with alkaline materials. In a preferred embodiment of the invention, chlorine-containing and sulfur-containing production residues which are viscous and still reactive, e.g. the residues obtained from the manufacture of plant protection agents, dyes or fine chemicals, are converted in a simple and efficient manner into solid products which can be dumped. The treatment according to the invention has the advantage that no further pollution of the environment by waste gases or waste water results.