However, modern research suggests that Roman technology was far more sophisticated than hitherto supposed, especially in mining methods, metal extraction and forging.

Cost-effective metal extraction would no longer depend on the availability of concentrated geographical deposits.

"Hazardous wastes from large-scale metal extraction."

They are also used for roasting a wide variety of sulfide ores prior to metal extraction.

Industrially, pine oil is used in metal extraction from ores.

According to the learning machines, moments of inertia were related to advanced methods of ore melting and metal extraction.

Barefoot has researched enhanced hydrocarbon and metal extraction in the mining industry for which he obtained several international patents.

For example, metal extraction usually requires large quantities of sulfuric acid.

My father was a metallurgist with a speciality in metal extraction from water.

Acetylacetone is used for metal extraction and plating and as a food additive.