T/GDBIA 08-2025 Design code forwet lithiumbattery diaphragm green,low-carbon and efficient interated whiteoil extraction and recycling

Scope

The design specification for the green, low-carbon, and high-efficiency integrated white oil extraction and recycling of lithium-ion battery separators aims to solve the industry's challenge of banning methylene chloride and provide an environmentally friendly alternative solution. The core focus of the specification is: selecting ionic liquids as extraction agents; designing an efficient multi-stage countercurrent extraction process to optimize temperature elevation efficiency; constructing an integrated closed-loop recycling system (centrifugal separation, reverse osmosis concentration, and short-path distillation) to achieve a white oil recovery rate of >99% and enable recycling; and integrating energy optimization and intelligent control to ensure low-carbon, efficient, and safe operation throughout the entire process, significantly reducing energy consumption and costs. 1. The purity of the recycled white oil reaches over 99.9%, making it suitable for recycling and reuse; 2. The COD of the recycled water is less than 500mg/L, making it suitable for recycling and reuse; 3. The oil content in the recycled extraction agent is less than 1000mg/L, making it suitable for recycling and reuse.

Development Information

Related Standards