Residue separation and solvent recovery from waste solvents
溶剂回收 / Lösungsmittelrückgewinnung / 용매 회수
An operation in which solvents are recovered and reused from cleaning waste liquid containing organic solvents generated in the paint manufacturing process, while also separating residues and reducing disposal volume.
Solvent recovery from paint waste liquid
Manufacturing process
※This process is just one example, and the manufacturing methods vary by company.
recovery
During vacuum condition and heating treatment, the material undergoes phase changes (from low to high viscosity). As a result, highly viscous and adhesive substances may adhere to the inside of the equipment, accumulate and solidify, potentially causing vibration and operational difficulties.
The twin-shaft indirect heating dryer "Different-Speed SC Processor" enables effective recovery of organic solvents from materials that undergo phase changes, by the following mechanical characteristics.
High-viscosity materials are smoothly conveyed by the self-wiping function.
A large heat transfer area is ensured by the jacket of barrel and hollow screws.
Efficient processing of raw materials with high boiling points achieved through vacuum operation
☆By reducing the organic solvent content in the residue, it can be treated as combustible material, similar to waste plastics.
☆Recovered organic solvent is reused for cleaning purposes.
