Method for recovering and reusing quartz powder waste in out-of-tube deposition process
US12404205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2020 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Jun 2, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2213/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present application provides a method for recovering and reusing quartz powder waste in an out-of-tube deposition process. The quartz powder recovered by this method meets the optical performance requirements for the preparation of an optical fiber preform rod having a functional cladding, reduces the production cost, and solves the problem of environmental pollution. Also, the present invention further provides a method for preparing an optical fiber preform rod by using the recovered quartz powder. The method reduces and simplifies the difficulty in the manufacturing of a core rod of a preform rod, and simplifies the difficulty in the manufacturing of some preform rods of special structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.