This process is very similar to open hearth furnace steelmaking.
From the en.wikipedia.org
The open hearth furnace allowed recycling of scrap iron and steel.
From the en.wikipedia.org
He patented his initial open-hearth furnace design in 1861.
From the investors.com
The Bessemer process was the first successful method of steelmaking in quantity, followed by the open hearth furnace.
From the en.wikipedia.org
The Bessemer process was soon followed by the Siemens-Martin furnace which was used in the open hearth process.
From the en.wikipedia.org
Earlier processes for this included the finery forge, the puddling furnace, the Bessemer process, and the open hearth furnace.
From the en.wikipedia.org
One of the older furnaces, the open-hearth furnace, is loosing its ground as it is considered as more polluting than electric arc furnaces.
From the sfgate.com
He had also offered a self-contained technology for new market entrants, whereas the open-hearth furnace had a more familiar civil-engineered infrastructural character.
From the bbc.co.uk
The furnace is constructed to pull the hot air over the iron without it coming into direct contact with the fuel, a system generally known as a reverberatory furnace or open hearth furnace.