Naphthenic acid removal process
US7575689B1 · kind B1 · utility
4Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2008 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Sep 25, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for removing naphthenic acids from an aqueous stream using a composition comprising calcium and activated carbon, and optionally a process for removing naphthenic acid and selenium compounds from an aqueous stream, is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.