Catalytic hydrogenation to remove gas from x-ray tube cooling oil
US6123456A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Jul 1, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention deals with the catalytic hydrogenation of fluid used to cool and dielectrically insulate an x-ray generating device within an x-ray system. According to the present invention, a method and apparatus are provided for hydrogenating fluid that has been exposed to x-rays to reduce the amount of H.sub.2 gas, free hydrogen atoms and unsaturated molecules in the fluid. The method comprises exposing the fluid within the x-ray system to a catalytically effective amount of catalyst. The catalyst operates in temperatures in the range of about 10-300.degree. C. and pressures in the range of about 0.1-30 atmospheres. The catalyst may comprise a solid, non-soluble catalyst, a soluble catalyst, or a combination of both. A suitable solid, non-soluble catalyst comprises Group VIII elements and their compounds. Group VIII elements comprise iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum. The catalytically effective amount of solid catalyst ranges from about 1-100 cm.sup.2 of surface area of solid catalyst per liter of fluid. Additionally, a suitable soluble catalyst may be added to the fluid and may comprise tris(triphenylphosphine)rhodium (I) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.