Rapid method for bitumen analysis
US4412007A · kind A · utility
3Cited by
3References
3Claims
0Family size
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Key dates
| Filing date | Jan 20, 1982 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | Jan 20, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Bitumen content of tailings or sludge obtained from processing of tar sands is quickly determined by a two step process wherein (1) clay mineral content is determined by adsorption of methylene blue and this value correlated to adsorbed organic material, (2) the content of total organic material is determined by a chromic acid oxidation, and the difference in these values gives the bitumen content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.