Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2007-01-02
2007-01-02
Parsa, J. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S841000, C568S851000
Reexamination Certificate
active
10442282
ABSTRACT:
A process of producing propylene chlorohydrin using a reactor having a one-way flow reaction area and a circulating flow reaction area which are connected in series. In this process, a propylene-containing gas is supplied to an aqueous solution of chlorine in the one-way flow reaction area to carry out at least part of a propylene chlorohydrin forming reaction so as to form a reaction mixture fluid containing propylene chlorohydrin and propylene and/or chlorine. The above reaction mixture fluid discharged from this reaction area is supplied to the circulating flow reaction area as at least part of a make-up medium, a propylene-containing gas and/or chlorine are/is supplied as required to continue the reaction in the circulating flow reaction area so as to obtain a reaction solution having a desired content of propylene chlorohydrin, and part of the reaction solution is extracted.
REFERENCES:
patent: 1232011 (1999-10-01), None
patent: 2553261 (1996-08-01), None
patent: 2001-335520 (2001-04-01), None
patent: 2002-154999 (2002-05-01), None
patent: WO 96/00709 (1996-01-01), None
Nikkan Kogyo Gisensyo 14, pp. 106-119, Nov. 25, 1962, with English translation of pp. 106-110.
Fujii Tomoaki
Kamamoto Manabu
Kodama Yoshikazu
Miyazaki Koujiro
Mizushima Yoji
Parsa J.
Tokuyama Corporation
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