Title:
METHOD FOR HEAT-TREATING LITHIUM-ION BATTERY WASTE
Document Type and Number:
WIPO Patent Application WO/2024/004356
Kind Code:
A1
Abstract:
This method for heat-treating lithium-ion battery waste includes: a battery-heating step for heating the lithium-ion battery waste in a heat treatment furnace; and a gas combustion step for feeding generated gas generated in the heat treatment furnace into a gas combustion furnace, feeding LPG as fuel and burning the generated gas in the gas combustion furnace, and changing the LPG combustion flow rate, which is the fuel feed amount, according to the temperature in the gas combustion furnace. While the temperature inside the heat treatment furnace is increasing, there are at least two ΔLPG increase periods in which ΔLPG, which is the amount by which the LPG combustion flow rate is throttled in the gas combustion furnace, is increased to 0.5 Nm3/h or above. In at least a part of at least the second ΔLPG increase period, the rate of increase in the temperature inside the heat treatment furnace is reduced or the temperature inside the heat treatment furnace is maintained.
Inventors:
MIYANAGA HIROSHI (JP)
HAGA YASUFUMI (JP)
HAGA YASUFUMI (JP)
Application Number:
PCT/JP2023/015834
Publication Date:
January 04, 2024
Filing Date:
April 20, 2023
Export Citation:
Assignee:
JX METALS CORP (JP)
International Classes:
C22B7/00; C22B1/02; H01M10/54
Foreign References:
| JP2021163645A | 2021-10-11 | |||
| JP2021150282A | 2021-09-27 | |||
| JP2018159477A | 2018-10-11 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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