Kumho Mitsui Chemicals Achieves Self-sufficiency in Chlorine Gas and Reuse of Waste Saltwater
2025-6-20
On June 16, 2025, Kumho Mitsui Chemicals successfully improved the production process of diphenylmethane diisocyanate (MDI) through ThyssenKrupp Nucera¡äs latest generation e-BiTAC v7 electrolytic cell technology. As a leading global supplier of efficient electrolysis plant technology, ThyssenKrupp New Era has designed and built a chlor-alkali plant with an annual output of 60,000 tons of chlorine gas for Kumho Mitsui Chemicals ¡ä factory in Yeosu, South Korea. The plant has been successfully put into operation.
Kumho Mitsui Chemicals is a globally leading polyurethane manufacturer that will use self-produced chlorine gas to replace imported raw materials in the production of diphenylmethane diisocyanate (MDI). MDI is an important raw material used to produce spandex, thermoplastic polyurethane (TPU), synthetic leather, shoe materials, paints, coatings, adhesives and various elastomers.
In addition, the chlor-alkali plant will also recycle the by-product saltwater generated during MDI production, which is usually discharged as wastewater. This move enables the company to comply with strict environmental regulations regarding industrial wastewater in an economically efficient manner and reduce its impact on the environment.
According to previous official reports, the expanded capacity of the diphenylmethane diisocyanate (MDI) plant by Kumho Mitsui Chemicals began commercial operation at the end of September 2024, with the company¡äs MDI capacity up from 410,000 tons per year to 610,000 tons per year.
Kumho Mitsui Chemicals is a globally leading polyurethane manufacturer that will use self-produced chlorine gas to replace imported raw materials in the production of diphenylmethane diisocyanate (MDI). MDI is an important raw material used to produce spandex, thermoplastic polyurethane (TPU), synthetic leather, shoe materials, paints, coatings, adhesives and various elastomers.
In addition, the chlor-alkali plant will also recycle the by-product saltwater generated during MDI production, which is usually discharged as wastewater. This move enables the company to comply with strict environmental regulations regarding industrial wastewater in an economically efficient manner and reduce its impact on the environment.
According to previous official reports, the expanded capacity of the diphenylmethane diisocyanate (MDI) plant by Kumho Mitsui Chemicals began commercial operation at the end of September 2024, with the company¡äs MDI capacity up from 410,000 tons per year to 610,000 tons per year.