Heat exchanger elements and other chemical processing elements comprising metal coated, heat stabilized impervious graphite
US4134451A · kind A · utility
17Cited by
9References
13Claims
0Family size
Inventors
Key dates
| Filing date | Dec 23, 1976 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Dec 23, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/905
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Impervious graphite tubes, rings and other chemical processing structures made from impervious graphite can be improved with respect to impact strength, safety, shock resistance, pressure capability and heat transfer capability by partially thermally degrading impervious graphite structures and coating the outer surfaces of the treated graphite structures with a layer of metal at an elevated temperature. Upon cooling, the structure is under compression and has the improved properties. Structures are claimed comprising metal armored, partially thermally degraded impervious graphite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.