Process for controlling carbonyl sulfide produced during chlorination of ores
US8691167B2 · kind B2 · utility
3Cited by
19References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2012 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2258/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides for a process for handling carbonyl sulfide waste and waste metal halides produced in industrial processes and, more particularly chlorination processes. The process includes the steps of hydrolyzing the carbonyl sulfide to produce a waste stream containing hydrogen sulfide and sulfidizing the resulting hydrogen sulfide containing stream with a solution of the waste metal halides. The resulting metal sulfide and metal halide-containing stream can be neutralized before disposal of the produced waste solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.