Fire-extinguishing agent capable of extinguishing combustion of aluminum slag, and preparation method therefor and use thereof
US11931614B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 30, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Dec 30, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fire-extinguishing agent capable of extinguishing the combustion of aluminum slag, and a preparation method therefor and the use thereof. The fire-extinguishing agent comprises the following raw materials: a sulfate, a chlorine salt, a mineral, a silica gel, a surfactant and a stearate. The main materials of sulfate and chlorine salt are solid waste containing sulfate and chlorine salt obtained by separating high-salt wastewater generated during a resynthesis process of a positive electrode material of a waste lithium battery. The solid waste containing sulfate and chlorine salt is used as a material for a fire-extinguishing agent, which can effectively recycle waste resources. The wastewater of a large amount and high salt content produced in the synthesis process of the positive electrode material of the waste lithium battery is separated and evaporated to obtain more solid wastes containing sulfate and chlorine salt, which can be used as the main material for preparing fire-extinguishing agents on a large scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.