Sulfide scavengers, methods for making and methods for using
US9440909B2 · kind B2 · utility
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19References
21Claims
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Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Jun 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/545
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methods for making sulfide scavenging compositions are provided. The method comprises reacting at least one secondary amine with at least one aldehyde and solvent in the presence of a catalyst to form a reaction composition, wherein a reaction temperature is less than or equal to 90° C. Sulfide scavengers using the above method are also disclosed. Methods for removing sulfides from fluid streams are also provided. The methods include adding the above sulfide scavengers to fluid streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.