Multifunctional scavenger for hydrocarbon fluids
US8366914B2 · kind B2 · utility
8Cited by
6References
9Claims
0Family size
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Key dates
| Filing date | Oct 14, 2008 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Jul 30, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds having the formulae and general formulae:wherein each R1, R2, R3 and R4 are the same or different and may be hydrogen, an alkyl group, an aryl group, a halogen, a nitro group, an alkyl or aryl ester, and an alkyl or aryl ether;compounds having the general formula:wherein R is an alkyl, aryl or electron withdrawing group;mixtures thereof; can be used as additives for crude oil and hydrocarbons. These compounds may be used to scavenge mercaptans, sulfides, cyanides, and primary or secondary amines; either alone or in combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.