Orta Corporation

Republic of Korea

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IPC Class
C01D 1/38 - PurificationSeparation by dialysis 1
C01D 15/02 - OxidesHydroxides 1
C01D 15/06 - SulfatesSulfites 1
C01D 15/08 - CarbonatesBicarbonates 1
C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis 1
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1.

PROCESS AND SYSTEM FOR CLOSED-LOOP RECYCLING OF SECONDARY BATTERIES WITHOUT WASTEWATER GENERATION

      
Application Number KR2023020166
Publication Number 2025/063393
Status In Force
Filing Date 2023-12-08
Publication Date 2025-03-27
Owner ORTA CORPORATION (Republic of Korea)
Inventor
  • Seo, Dong Hwan
  • Yu, On
  • Kim, Ok Ran

Abstract

The present invention relates to a process and a system that recover sulfuric acid and lithium hydroxide through electrodialysis and reintroducing same into the process, thereby generating no wastewater and allowing for closed-loop recycling in a secondary battery recycling process, and thus enable resources from lithium secondary battery waste to be recovered in an eco-friendly and economical manner.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
  • C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
  • C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
  • C22B 3/08 - Sulfuric acid
  • C22B 26/12 - Obtaining lithium
  • C01D 15/06 - SulfatesSulfites
  • C01D 15/08 - CarbonatesBicarbonates
  • C01D 15/02 - OxidesHydroxides
  • C01D 1/38 - PurificationSeparation by dialysis