Determining the concentration of sulphur in coal
US4015124A · kind A · utility
9Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1976 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | Feb 20, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a method for determining the concentration of sulphur in coal and to apparatus which enables this method to be put into practice. The method involves measuring the intensities of the X-ray fluorescent radiations from iron and sulphur atoms in a sample of coal which has been excited by X-ray radiation. The measures of the intensities are combined mathematically to give an output from which the concentration of sulphur in the coal may be determined. Using the apparatus described the concentration of sulphur in a sample of coal can be determined quickly and accurately by an unskilled worker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.