Outokumpu Harjavalta Metals Oy

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Harjavalta, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method for preventing the formation of jarosite and ammonium and al...
- Patent number 5,779,997
- Issue date Jul 14, 1998
- Outokumpu Harjavalta Metals Oy
- Bror Goran Nyman
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for beneficiating nickel sulfide concentrates and correspond...
- Patent number 5,385,600
- Issue date Jan 31, 1995
- Outokumpu Harjavalta Metals Oy
- Seppo S. Jounela
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Method for producing high-grade nickel matte and metallized sulfide...
- Patent number 5,332,414
- Issue date Jul 26, 1994
- Outokumpu Harjavalta Metals Oy
- Tuula S. M. Makinen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...