Die Germaniumreserven von Germany Zinc Electricity
In a zinc pyrometallurgical process, germanium (60–70%) remains primarily in crude zinc during the imperial smelting process (ISP), whereas 30–40% of the germanium is
Why is germanium important in the zinc refining process?
Request PDF | Recent advances in the recovery of germanium during the zinc refining process | Germanium plays an essential role in many high-tech fields because of its excellent electrical and optical properties. For germanium from primary | Find, read and cite all the research you need on ResearchGate
What happens to germanium in zinc pyrometallurgical process?
In a zinc pyrometallurgical process, germanium (60–70%) remains primarily in crude zinc during the imperial smelting process (ISP), whereas 30–40% of the germanium is removed by slag. The germanium in crude zinc is recovered via a distillation refining (or electrorefining)–chlorinated distillation process (pyro-process).
Is germanium a zinc sulfide?
Germanium exists as a substituted element in zinc sulfide matrix of lead–zinc sulfides and lignites. Nearly 60% of the germanium supply is met by zinc refining residues, and about 20–30% of germanium is produced from coal and its by-products.
Can germanium be used in zinc concentrate?
However, the total recovery efficiency for germanium is low, accompanied by high energy consumption and high impurity content. Therefore, there is an urgent need to utilize germanium in zinc concentrate globally using efficient and low-consumption green processes.
How is germanium extracted from crude zinc?
The germanium in crude zinc is recovered via a distillation refining (or electrorefining)–chlorinated distillation process (pyro-process). The smelting slag is usually processed together with neutral leaching residue via the Waelz technique (Chen and Zang, 2018).
Why does germanium remain in zinc leach residues?
In zinc hydrometallurgical processes, due to the low solubility of germanium in an acidic medium, germanium remains in the zinc leach residues (Kamran Haghighi 2018). In some rare cases, germanium has been seen in processes related to copper ores.
