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Sumitomo Chemical has actively developed manufacturing processes that have a low environmental impact not only by cleaning and recovering emissions, but also by manufacturing without releasing hazardous material.
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Revolutionary New Process for Propylene Oxide Production
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Using high-performance catalysts developed in-house, Sumitomo Chemical has developed a compact propylene oxide process that generates no styrene monomers, conserves energy and resources, and also has strong market potential.
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Vapor-Phase Technology for Caprolactam Production
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Sumitomo Chemical has developed a new production process for caprolactam. Unlike conventional processes, this new technology produces caprolactam without generating ammonium sulfate as a by-product, by combining Sumitomo Chemical’s proprietary catalysts with a new process from the Italian petrochemical company EniChem. Thus, it helps to conserve energy and resources and is environment friendly.
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Oxidation Technology for Hydrochloric Acid
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Sumitomo Chemical’s oxidation technology for hydrochloric acid, created using catalysts developed in-house, is highly efficient. By employing this technology, it is possible to recover the chlorine from hydrochloric acid generated as a by-product in manufacturing processes for such products as isocyanate vinyl chloride monomer, epichlorohydrin, and others in which chlorine is a raw material. Thus, this technology is expected to facilitate chlorine recycling and substantially reduce environmental impact.
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New Process for Methionine
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This new process has a low impact the environment by using a technology that prevents the accumulation of impurities during recycling and controls crystalline forms produced by reactive crystallization accompanying gas absorption.
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Direct Oxidation Process for Methyl Methacrylate (MMA)
Monomer, the Raw Material for Methacrylic Resin
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This manufacturing process conserves resources and generates fewer by-products.
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Hydroperoxide Process for Resorcinol, an Adhesive for Rubber
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This manufacturing process conserves resources and produces fewer waste materials.
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Water-Based Solvent Process for Household Insecticides
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This process does not use organic solvents.
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Geometrical Isomer Control Technology, Asymmetrical Polymer Process
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This manufacturing process allows for efficiency in the production of plant growth regulators.
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New Process for Fatty Acid Methyl Ester
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This new manufacturing process for fatty acid methyl ester uses methanol in a supercritical state.
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Technology for the High-Density Cultivation of Nitrifying Bacteria
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Sumitomo Chemical has developed a technology to achieve high-density cultivation of nitrifying bacteria for a stable and effective biological nitrification treatment for wastewater. Further tests are being conducted with an eye toward practical application of a technology that allows for the simultaneous treatment of wastewater that contains ammonia and organic effluent.
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Pilot facility for testing technology for high-density
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