Method for determining the concentration of iron ions in hydrocarbon compositions
US9488633B2 · kind B2 · utility
3Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jan 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method for determining the concentration of iron ions in a hydrocarbon composition, as well as reagents and kits for use in such methods. The method utilises a thiocarboxylic acid having formula (I) which reduces the ferric ions and complexes ferrous ions producing a colored solution, which can be analysed to determine the amount of iron ions in the starting sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.