FIRE-EXTINGUISHING AGENT CAPABLE OF EXTINGUISHING COMBUSTION OF ALUMINUM SLAG, AND PREPARATION METHOD THEREFOR AND USE THEREOF

WIPO Patent Application WO/2022/252601

A1

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.

YU HAIJUN (CN)
ZHONG YINGSHENG (CN)
XIE YINGHAO (CN)
LI CHANGDONG (CN)
ZHANG XUEMEI (CN)

PCT/CN2021/142930

December 08, 2022

December 30, 2021

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GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP VEHICLES RECYCLING CO LTD (CN)

A62D1/00

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CN104511127A	2015-04-15
US20150224352A1	2015-08-13
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US20140202717A1	2014-07-24
CN113413569A	2021-09-21

ADVANCE CHINA IP LAW OFFICE (CN)

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