Method for monitoring the fluorescence of 4-carboxy-p-terphenyl in crude terephthalic acid
US4652674A · kind A · utility
8Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1985 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Nov 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/201666
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is disclosed for separating and measuring the fluorescence of 4-carboxy-p-terphenyl in crude terephthalic acid formed by the liquid-phase oxidation of p-xylene in a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.