The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2011
Filed:
Aug. 06, 2007
Shinya Tachibana, Hiroshima, JP;
Ryuji Yoshiyama, Nagasaki, JP;
Tsuyoshi Oishi, Hiroshima, JP;
Mikiya Sakurai, Hiroshima, JP;
Kazuo Ishida, Kanagawa, JP;
Tatsuya Tsujiuchi, Hiroshima, JP;
Hidehisa Mita, Tokyo, JP;
Ryosuke Araki, Tokyo, JP;
Kenji Saito, Tokyo, JP;
Shinya Tachibana, Hiroshima, JP;
Ryuji Yoshiyama, Nagasaki, JP;
Tsuyoshi Oishi, Hiroshima, JP;
Mikiya Sakurai, Hiroshima, JP;
Kazuo Ishida, Kanagawa, JP;
Tatsuya Tsujiuchi, Hiroshima, JP;
Hidehisa Mita, Tokyo, JP;
Ryosuke Araki, Tokyo, JP;
Kenji Saito, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Nippon Nyukazai Co., Ltd., Tokyo, JP;
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.