• Sulfuric acid (H2SO4)
    Sulfuric acid (H2SO4)

    Sulfuric acid is produced using sulfur dioxide (SO2) that is generated during the copper smelting process. Sulfuric acid (H2SO4) produced using the Lurgi and Monsanto double contact process is recognized for its computer-controlled accuracy, quality, and process. Thanks to its excellent quality, LS MnM's sulfuric acid products are used widely for fertilizers, metal-leaching processes, and other industrial purposes (e.g. wastewater treatment). In 1996, they were approved for use as food additives due to their low content of impurities. The sulfuric acid manufacturing facility of LS MnM started its operation in 1979. With the completion of the second sulfuric acid plant in 1997 and major process improvements in 2008, it now has an annual production capacity of 1,925,000 tons.

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    • Production capacity

      1,925 kt/y

    • Uses

      fertilizers / metal leaching / wastewater treatment / food / Textile Industry

    • Specifications

      Properties Unit Specifications
      H2SO4 % > 98
      > 95
      Impurities KMnO4 ppm < 0.1
      Hg ppm < 1
      Cd ppm < 0.2
      Cu, Pb, Co, Ni, Mn ppm < 1
      As, Cr ppm < 2
      Ca, Sb ppm < 10
      Fe ppm < 20
      SO2 ppm < 40
      Cl ppm < 53
      Turbidity < 40
      Residue ppm < 150
    • Shipping type

      tank lorries, chemical tankers
  • Liquid anhydrous sulfurous acid (L-SO2)
    Liquid anhydrous sulfurous acid (L-SO2)
    High-quality Liquid anhydrous sulfurous acid (L-SO2) with a purity of 99.9% or higher

    Liquid anhydrous sulfurous acid (L-SO2) used in textile bleaching and coloring agents is generally produced by burning sulfur. However, our Liquid anhydrous sulfurous acid(L-SO2) is produced by reacting anhydrous sulfuric acid gas (SO3) generated in a sulfuric acid plant with sulfur (S). We are the only company in Korea that owns this technology, which allows us to produce products that are 99.9% in purity.

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    • Production capacity

      18,250 t/y

    • Uses

      Manufacture of bleaching agent and coloring agent for fiber and pulp (manufacture of Hydro, sodium bisulfite) / Manufacture of starch / Food additives / Purification of automobile casting molds / Other reagents

    • Specifications

      Properties Unit Specifications
      SO2 % > 99.99
      Impurities H2O ppm < 100
      Residue ppm < 100
    • Shipping type

      tank lorries, bombes
  • LS-Ferrosand

    LS-Ferrosand is made by rapidly cooling the material produced from combining iron powder and silica stone with high-pressure water in a solution state, and then granularizing it. LS-Ferrosand is regarded as an alternative for natural aggregates due to its excellent environmental stability and lack of salt. We have obtained environmental labeling certificates for concrete and caisson fill materials. Higher in iron content and lower in impurities compared to the competitors, our products are in popular demand among customers.

    Ferrosand 이미지 Ferrosand 이미지
    • Production capacity

      1,250 kt/y

    • Uses

      Ferrous raw material for cement / Aggregate for filling caisson / Aggregate for ready-mixed concrete / Aggregate for concrete

    • Shipping type

  • Gypsum (CaSO4ㆍ2H2O)
    Gypsum (CaSO4ㆍ2H2O)

    LS MnM operates a waste acid plant where we purify and neutralize waste acid generated from smelting, sulfuric acid, electrochemical, and precious metal processes. During this process, gypsum is produced by dehydrating the gypsum slurry made using calcium carbonate. All of LS MnM's gypsum is used as a cement setting retardant.

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    • Production capacity

      120 kt/y

    • Uses

      Setting retardant for cement / Gypsum boards / Raw ceramic molds / Chalks

    • Specifications

      Properties Unit Specifications
      CaO % < 40
      Specifications SO3 % > 38
    • Shipping type

  • LS-Precious Sand
    LS-Precious Sand

    We produce LS-Precious Sand products by removing impurities from the PbO Sand formed in the precious metal melting process through leaching. With Pb content of 40-60% and trace amounts of Au and Ag, LS-Precious sand is generally used as a raw material for refining operations for the recovery of valuable metals (Pb, Au, Ag, etc.).

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    • Production capacity

      2,700 t/y

    • Uses

      Raw material for recovering precious metals

    • Shipping type

      1 t bag