Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2011-07-12
2011-07-12
Davis, Brian J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C564S475000
Reexamination Certificate
active
07977513
ABSTRACT:
An amine producing apparatus includes a reactor that reacts a mono-lower-alkylamine and an alkylene oxide, an unreacted-raw-material-recovery distillation column that separates unreacted raw materials by distillation from a product including unreacted raw materials obtained in the reactor, a non-aqueous distillation column that removes water and a light component by a distillation method from a reactive product from which unreacted raw material have been separated, and a purification and distillation column that separates by distillation a desired reactive product (mono-lower-alkylmonoalkanolamine) and residue (mono-lower-alkyldialkanolamine which is a dimer) from a reactive product from which the water and the light component have been removed.
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Oda, Ryohei et al.; Surface Active Agent, 1965, pp. 262-263.
Araki Ryosuke
Ishida Kazuo
Mita Hidehisa
Oishi Tsuyoshi
Saito Kenji
Davis Brian J
Mitsubishi Heavy Industries Ltd.
Nippon Nyukazai Co. Ltd.
Westerman Hattori Daniels & Adrian LLP
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