The smelting process was often carried out away from the rest of the community.

Other smelting processes are similar, but lead is not added.

The smelting process used is different from the modern mass production of steel.

It has relatively low capital and operating costs for a smelting process.

The smelting process is carried out entirely by men and often away from the village.

Slag from the smelting process is also an environmental concern.

Most of it is slagged off during the smelting process.

They are also a by-product of the aluminium smelting process.

Charcoal was an important part of the smelting process.

Timber being used to produce charcoal to fuel the smelting process.

I explained quickly about the chimney and the machinery, which indicated a smelting process.

No the smelting process is not new technology.

It is likely that this tax change was due to the improved smelting process provided by the blowing houses.

Anode effects can be controlled through modifications in the smelting process.

Copper is the primary product and the smelting process is spectacular.

Mercury is also released into the atmosphere by fuel emissions and smelting processes.

All mining and smelting processes highly toxic to environment.

"Dynamic simulation of a bath smelting process using neural networks"

Finally, the precipitated copper is collected and refined further through the traditional smelting process.

The company diversified its products, developing and selling the by-products of the smelting process.

These impurities are usually removed by "slagging" during the smelting process.

The slag is a byproduct of the smelting process.

The rest of the battery, including the lithium and plastic, is burned up in the smelting process as fuel.

Although the new technology could replace smelting process, company officials say it doesn't necessarily mean the Herculaneum facility would close.

Norrish said China was also very important in terms of supply, particularly for aluminium, where the smelting process is energy intensive.