Organic acids are important compounds with numerous applications in different industries.
This work presents a comprehensive review of the biological synthesis of oxalic acid, an …

The extraction of lithium mainly depends on salt-lake brine and lithium ore. With the rapid
growth of the new energy automobile industry, there has been a surge in demand for lithium …

Coal fly ash (CFA) is an industrial byproduct produced during the production of electricity in
thermal power plants from the burning of pulverized coal. It is considered hazardous due to …

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 …

Germanium, a critical metal, is predominantly located in lignite and lead–zinc ore. The
germanium was commonly extracted from the fly ash of germanium-rich lignite (GRL) …

Coal gasification slag (CGS) is rich in Li and Ga. However, few studies have focused on the
extraction of Li and Ga from CGS. In the present study, the leaching of Li and Ga from CGS …

An alternative method based on cementation for the recovery of nickel from spent Ni/Al2O3
reforming catalyst pregnant leach solution (PLS) was proposed to overcome the limitations …

Lithium, a critical material for the global development of green energy sources, is
anomalously enriched in some coal deposits and coal by-products to levels that may be …

Though nowadays germanium does not reach the range of popularity of other metals, ie,
rare earth elements, its utility in target industries makes it a strategic metal. Though …

Coal fly ash (CFA) is a highly versatile raw material that has the potential to yield multiple
value-added products, including cenospheres, zeolites, carbon nanotubes, and fertiliser …