Sulfide scavengers, methods for making and methods for using
US9108899B2 · kind B2 · utility
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18References
14Claims
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Key dates
| Filing date | Feb 24, 2012 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Feb 24, 2033 |
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.