Patent · US Expired

Process for the selective absorption of chlorine from CO.sub.2 -containing off-gases

US5102638A · kind A · utility

4Cited by

2References

7Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Ulrich Girrbach · Frankfurt am Main, DE
Richard C. Grimm · Charleston, US
Edgar Hartl · Langen, DE
Egon Malow · Hochheim, DE

Key dates

Filing date	Jun 29, 1990
Grant date	Apr 7, 1992
Priority date	—
Expiry date	Jun 29, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02C20/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention provides a process for the selective absorption of chlorine from CO.sub.2 -containing off-gases, which comprises washing the off-gases with an aqueous solution which contains 0.1-10% by weight of NaHCO.sub.3 and 0.01-5% by weight of NaHSO.sub.3.

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