发明名称 |
Process for the production of a PGM-enriched alloy |
摘要 |
A process for the production of a PGM-enriched alloy comprising 0 to 60 wt.-% of iron and 20 to 99 wt.-% of one or more PGMs selected from the group consisting of platinum, palladium and rhodium, the process comprising the steps: (1) providing a sulfur-free PGM collector alloy comprising 30 to 95 wt.-% of iron and 2 to 15 wt- % of one or more PGMs selected from the group consisting of platinum, palladium and rhodium, (2) providing a copper- and sulfur-free material capable of forming a slag-like composition when molten, wherein the molten slag-like composition comprises 10 to 30 wt.-% of magnesium oxide and/or calcium oxide and 70 to 90 wt.-% of silicon dioxide, (3) melting the PGM collector alloy and the material capable of forming a slag-like composition when molten in a weight ratio of 1 : 0.75 to 5 within a converter until a multi- or two-phase system of a lower high-density molten mass comprising the molten PGM collector alloy and one or more upper low-density molten masses comprising the molten slag-like composition has formed, (4) contacting an oxidizing gas comprising 0 to 80 vol.-% of inert gas and 20 to 100 vol.-% of oxygen with the lower high-density molten mass obtained in step (3) until it has been converted into a lower high-density molten mass of the PGM-enriched alloy, (5) separating an upper low-density molten slag formed in the course of step (4) from the lower high-density molten mass of the PGM-enriched alloy making use of the difference in density, (6) letting the molten masses separated from one another cool down and solidify, and (7) collecting the solidified PGM-enriched alloy. |
申请公布号 |
AU2016287673(A1) |
申请公布日期 |
2017.03.02 |
申请号 |
AU20160287673 |
申请日期 |
2016.04.25 |
申请人 |
Heraeus Deutschland GmbH And Co. KG;Heraeus Precious Metals North America LLC. |
发明人 |
Ritschel, Norbert;Taylor, Jimmy;England, Todd;Peters, Brian;Stoffner, Felix;Rohlich, Christoph;Voss, Steffen;Winkler, Holger |
分类号 |
C22B9/00;C22B11/02 |
主分类号 |
C22B9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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