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Corporate Labs |
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Gas-phase Polymerization Process
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Gas-phase polyethylene and polypropylene plants are based on our proprietary processes. The combination of our proprietary high-performance polymerization catalysts and polymerization technologies has made it possible to simplify the manufacturing processes.
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Vapor-Phase Beckmann Rearrangement Technology
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Sumitomo Chemical has succeeded in developing an innovative Beckmann rearrangement process, employing our proprietary catalyst. This is the first technology in the world designed for manufacturing caprolactam without co-producing ammonium sulfate. It has enabled us to improve our cost competitiveness remarkably and made the process environmentally benign.
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Hydrochloric Acid Oxidation
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We have also developed an innovative process for converting
hydrochloric acid to chlorine, utilizing a proprietary high-performance
catalyst. This technology can be combined with various chlorine-consuming
processes, such as that for manufacturing the raw materials
of polyurethane. The hydrochloric acid by-product is converted
to chlorine efficiently. The new process has the additional
advantage of alleviating environmental load.
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Pyrethroid Insecticides
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Sumitomo Chemical has erected a world-class manufacturing plant for the manufacture of technical grade pyrethroid Insecticides. Since our first success in the development of a pyrethroid insecticide in 1940s, we have launched various kinds of unique pyrethroid insecticides based on our proprietary optical resolution technology.
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Pharmaceuticals
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The manufacture of pharmaceuticals does not permit the presence of even a minute quantity of bacteria or dust. Our pharmaceuticals, which are manufactured in a state-of-the-art bacteria-free and dust-free purification plant (bio-clean room), meet the world’s highest standards of Good Manufacturing Practice.
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High-Purity Alumina
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Our high-purity alumina, made by an aluminum alkoxide hydrolysis
method, comes in a fine powdery form with the world’s
highest purity of 99.999%. It is used for video magnetic
tapes, sodium lamps and abrasives.
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