Pressure container for crystal production
US11746439B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 5, 2018 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A pressure container for crystal production having excellent corrosion-resistance is provided. This pressure container produces crystals within the container using a seed crystal, a mineralizer, a raw material, and ammonia in a supercritical state or a subcritical state as a solvent. The pressure container has Ag present over the entire surface of at least the inner surface thereof in contact with the solvent. The Ag can be disposed by one or a combination of two or more among, for instance, Ag lining, Ag welding, and Ag plating. The mineralizer is preferably a fluorine mineralizer containing no halogen atoms other than fluorine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.