Improved Plasma Induced Fuming Furnace
Patent No. EP4062117 (titled "Improved Plasma Induced Fuming Furnace") was filed by Aurubis Beerse on Nov 20, 2020. The application was issued on Dec 6, 2023.
Patent Summary
A single-chamber furnace for fuming evaporable metals or metal compounds from a metallurgical charge comprises a bath furnace containing a molten charge up to a determined level. The system utilizes at least one nontransferred plasma torch to generate plasma-quality first hot gases, which are introduced below the determined level via at least one first submerged injector. To enhance bath agitation and fuming rates, the furnace further includes at least one second submerged injector, distinct from the first, for injecting extra gas below the determined level. Downstream of the furnace top, the system incorporates an afterburning zone for oxidizing the fumed metals/compounds, a cooling zone for the resulting gas, and a recovery zone for extracting the oxidized forms from the cooled gas.
Patent Family
Patent Oppositions
Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
Dossier Documents
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents
EP4062117
- Application Number
- EP20808004A
- Filing Date
- Nov 20, 2020
- Status
- Granted And Under Opposition
- Nov 3, 2023
- Publication Date
- Dec 6, 2023
- External Links
- Slate, Register , Google Patents