Production of metal powders, particularly for use in electrodes and production of electrodes from these products
Abstract
Abstract Process for manufacturing a metal powder having a predetermined structure consisting in chemically reducing to metallic state a solution of a salt of the metal intended to constitute the electrode by the addition thereto of an appropriate reducing agent, while the ''''solution-reducing agent'''' mixture is submitted to a perturbed whirling agitation, so that the concentration of salt and reducing agent are made uniform and so that a great number of metal germs are produced, the agitation being maintained in order to promote an agglomeration in successive concentric layers of particles until the predetermined size of conglomerates is obtained, then separating the conglomerates from the mother-liquid when the required size is reached and finally washing and drying the powder so prepared. The powder so prepared is then formed into electrodes of desired dimensions by compression and, if necessary, followed by subsequent sintering at moderate sintering temperature.
Inventors
- 👤 Bernard Paul Louis Amiet
Bibliographic Details
Claims Analysis
Total Claims: 9References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |