Det Norske Zinkkompani A/S

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Patents Grantslast 30 patents

Information Patent Grant
Thermal treatment of leaching residue from hydrometallurgical zinc...
- Patent number 4,072,503
- Issue date Feb 7, 1978
- Det Norske Zinkkompani A/S
- Stig A. Peterson
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for separation of iron from metal sulphate solutions in hyd...
- Patent number 3,983,210
- Issue date Sep 28, 1976
- Det Norske Zinkkompani A/S
- Georg Steintveit
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...