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US 2024/0123480 A1Published application
Chemical liberation of waste printed circuit boards
OwnerBenjamin Turner Suslavich, Avimanyu Das +1inventors
InventorsBenjamin Turner Suslavich, Avimanyu Das, Courtney Alan Young
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Abstract
A method of delamination of a printed circuit board includes comminuting the printed circuit board, and soaking the comminuted PCB in a solvent system comprising at least two solvents. Once soaking has been completed the method includes separating solids, and electrostatically separating different specific solids from the separated solids.
Claims20
A method of delamination of a printed circuit board, comprising:
- comminuting the printed circuit board;
- soaking the comminuted PCB in a solvent system comprising at least two solvents;
- separating solids;
- and
- electrostatically separating different specific solids from the separated solids.
2 more elements
A method of delaminating a printed circuit board (PCB), comprising:
- shredding the PCB;
- swelling the shredded PCB with a swelling agent bath comprising at least two swelling agents;
- and
- agitating to assist in delaminating the swelled shredded PCB.
1 more element
A method of recovering components of a printed circuit board (PCB), comprising:
- shredding the PCB;
- delaminating the PCB with a solvent system;
- wherein delaminating comprises soaking in the solvent composition bath comprising a swelling agent and a diluent, wherein the swelling agent is a combination of at least two reagents.
Dependencies are inferred from the claim text.