Apparatus for removal of water from evacuated chambers or from gasses using boron oxide
US6522457B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 15, 2001 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0346
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the conversion of boric acid to dry boron oxide by thermal decomposition is described. Boron oxide may be produced as a powder or in the form of pellets, and in either form may additionally be enclosed in a gas permeable container to control particulate contamination. Applications are further disclosed for the use of boron oxide formed by this process to remove water from evacuated chambers and from gases. Specific applications include removing water from both inert gases and reactive gases, especially halogen and halogenated gases. Further applications directed to optical amplifiers and gas purifiers are also discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.