Recovery of flux residues from rinse water in dip brazing
US4244505A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1979 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | May 17, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/3603
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for recovery of salts from a rinse liquid solution used to rinse salt flux from a metallurgical joining operation is disclosed in which process soluble flux salts are dissolved in the rinse liquid solution while other insoluble salts are dispersed therein. The process comprises collecting the rinse liquid solution; removing undissolved solids from the solution; concentrating the remaining solution by removal of liquid to provide a slurry; subjecting the slurry to a drying operation to remove the balance of the liquid; and recovering the residue. In a preferred embodiment, the residue is analyzed and sufficient metal salts are added to restore the residue to a desired salt flux composition for reuse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.