Method for quantitative analysis of hydrogen in porous silica
US12025554B2 · kind B2 · utility
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Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | May 5, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for quantitative analysis of hydrogen gas generated due to the decomposition of Si—OH (silanol) in porous silica, which is a support of a metallocene catalyst is provided. The analysis enables the measurement of the content of hydrogen present in trace amounts in silica by employing an inert gas fusion-infrared absorption (IGFIA) method under specific pressure and temperature conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.