1 住友化学株式会社石油化学品研究所Petrochemicals Research Laboratory, Sumitomo Chemical Co., Ltd. ◇ 〒299-0295 千葉県袖ヶ浦市北袖2-1
2 住友化学株式会社石油化学業務室Planning and Coordination Office, Petrochemicals and Plastics Sector, Sumitomo Chemical Co., Ltd.
プロピレンオキサイド（PO）の既存製法には塩素を用いる単産法と有機週酸化物を用いる併産法とがあるが，副生物の問題や併産品の市況に左右されるといった問題があり，新しい単産製造法が強く望まれていた。当社は新規な高性能Tiエポキシ化触媒の開発を契機に，クメンを酸素キャリアーとする全く新しいPO単産法技術を開発した。このクメン法PO単産技術は既存法に比べ高収率で副産物の少ないグリーンプロセスである。
There had always been a strong demand for the development of new PO-only process. The conventional processes — Chlorohydrin PO-only process and organic hydroperoxide process that generates huge amout of co-products — have been causing headaches for the PO manufactures due to the generation of environmentally unfriendly wastes, and to the dependence of product price on the fluctuating market of co-products.
Owing to the development of high performance Titanium epoxidation catalyst by our researchers, we have succeeded in establishing the novel PO-only manufacturing process where Cumene acts as the Oxygen carrier.
The new PO Cumene process is considered as one of the "Green processes" since it gives higher yields than the conventionals with only small amount of by-products products produced.
Key words: Propylene oxide; Cumene; Titanium epoxidation catalyst; Green process; PO-only process
© 2006 ゼオライト学会© 2006 Japan Association of Zeolite
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