S. Korean Steelmakers to Use Oyster Shell Waste for Steelmaking | Be Korea-savvy

S. Korean Steelmakers to Use Oyster Shell Waste for Steelmaking


SEOUL, Sept. 17 (Korea Bizwire)POSCO and Hyundai Steel Co., South Korea’s two largest steelmakers, will start using oyster shells as a secondary base material for steel production.

Both companies were inspired by the fact that oyster shell substances are similar to the limestone used for sintering and have been developing a recycling technology with a local oyster shell processing firm.

Sintering refers to a steel production phase in which powdered iron ore is processed before being injected into a furnace.


The industry believes that a supply of some 920,000 tons of oyster shell waste into steel production will result in a CO2 emissions reduction of up to 410,000 tons.

POSCO Chemical Co., an affiliate of POSCO, also developed a new technology that replaces limestone with oyster shells during the steelmaking process where impurities are filtered from molten metal before it is made into steel.

Image Credit: Yonhap / Pixabay / photonews@koreabizwire.com

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