Method for odor control
US6743421B2 · kind B2 · utility
2Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | May 16, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/1493
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method of removing organic acid an/or organic amines odors from aqueous systems by treating the aqueous system or the atmosphere adjacent to the aqueous system with a solution of a substantially sulfonate free, anionic kraft pine lignin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.