Process for the removal of water from evacuated chambers or from gases
US6304367A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/06
- 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.