Germanium plays an essential role in many high-tech fields because of its excellent
electrical and optical properties. For germanium from primary resources, approximately …

Germanium as a strategic metalloid is widely used in high-tech devices. The most crucial
germanium resources are rare and limited to zinc minerals, ie, especially zinc sulfides and …

The recovery of germanium (Ge) from zinc residue leachate has attracted increasing
attention. Herein, this study report on the development of a tartaric acid functionalized …

The paper proposes an environmentally friendly process for recovering germanium, lithium,
and vanadium from coal fly ash (CFA) using thermal pretreatment and hydrometallurgy. To …

In this review, availability of germanium in primary and secondary resources and its recovery
from these resources are presented. With nearly 40% germanium consumed in fiber optics …

To address the insolubility of x (SiO 2)· GeO 2 and y (Fe 3 O 4)· GeO 2, this study introduced
a two-step leaching (NaOH leaching-NL and low-temperature molten NaOH leaching …

Germanium, a scattered metal in nature, is generally extracted from coal fly ash produced by
the combustion of germanium-rich lignite in industrial process. It is a direct approach for …

Although numerous studies on the flotation activation of sphalerite by copper ion have been
reported, but there are still some important problems to be studied further. Previous research …

Gold can be extracted from gold plating baths, printed circuit boards, and goldsmithing
wastes by sodium hypochlorite leaching. However, the leach liquor should be purified to …

An efficient production process that can selectively recover the critical element germanium
(Ge) from dilute sources is necessary to address the criticality of Ge. In this study …