Nippon Steel Chemical Co. Ltd

Jptt Kokai Tokkyo Koho Jp 02,243,652 (Sept. 27,1990), M. Morita and co-workers (to Nippon Steel Chemical Co., Ltd.). 

Some of the principal Japanese producers of benzene are Mitsubishi Petrochemical Co., Ltd., Nippon Steel Chemical Co., Ltd., Sanyo Petrochemical Ltd., and Idemitsu Kosan Ltd. Until 1967, the main source of Japanese benzene was coal-based. Today, approximately 40—45% of benzene production in Japan is based on pyrolysis gasoline (74), about 40% catalytic reformate, and the remainder coke oven light oil and thermal hydrodealkylation. 

Jptt Kokai Tokkyo Koho 63,162,632 (July 6, 1988), K. Sakura, H. Takeuchi, and N. Taguma (to Nippon Steel Chemical Co., Ltd.) Jpn. Kokai Tokkyo Koho 62,129,229 (June 11, 1987), H. Takeshita and co-workers (to Nippon Steel Chemical Co., Ltd.). 

G.T. thanks Nippon Steel Chemicals Co. Ltd. and Nippon Steel Co. Ltd. for permission to publish of this article. 

Commercial plants The first commercial plant incorporating CT-BISA with a 70,000-tpy capacity was constructed for Shin Nippon Bisphenol Co., Japan, and has been successfully operated since 1991, in collaboration with Nippon Steel Chemical Co., Ltd. This plant has been revamped by Chiyoda to 95,000 tpy in 1999. A second facility, with 25,000-tpy capacity for Taiwan Prosperity Chemical Corp., Taiwan, has been successfully operated since 1995. A third facility, with 70,000-tpy capacity for Mitsubishi Chemical Corp., Japan, started up in 1998 and has been revamped to 100,000 tpy by Chiyoda in 2000. In 2000, two new contracts have been awarded to CT-BISA Process, i.e., a 100,000-tpy BPA plant by Mitsubishi Chemical Corp., Japan and a 25,000-tpy plant by Bluestar, China-... 

Nabatake, M. Ogawa, Y. Iwasaki, and T. Mizuta (to Nippon Steel Corp. and Daido Chemical Industry Co., Ltd.) N. P. Korotkova, I. G. 

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