Method for preparing lead smelting slag glass-ceramics based on the oxidation of silicon-rich silicon smelting slag and composition adjustment
US11964902B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2023 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Nov 14, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C10/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention discloses a method for preparing lead smelting slag glass-ceramics based on the oxidation of silicon-rich silicon smelting slag and composition adjustment, and belongs to the technical field of resource utilization of smelting slag rich in monatomic silicon. The method comprises the steps: mixing the silicon slag rich in monatomic silicon with an oxidant, a fluxing agent and a clarifying agent according to a formula ratio, ball-milling and screening to obtain a tempering raw material with uniform size, and performing high-temperature oxidation melting on the tempering raw material to form an oxidation-state molten tempering material; and carrying out further mixed melting on the molten tempering material and hot lead slag, carrying out water quenching to obtain basic glass, and carrying out heat treatment system on the obtained basic glass to form the glass ceramics. According to the method, the smelting slag rich in monatomic silicon is subjected to oxidation tempering and mixed melting with the hot lead slag to prepare the basic glass, and the glass ceramics are obtained by regulating and controlling the heat treatment system of the basic glass. The method is simple…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.