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Title:
液体F中に含有され、アクリル酸又はそのエステルの製造の際に形成されたマイケル付加物を解離する方法
Document Type and Number:
Japanese Patent JP5627596
Kind Code:
B2
Abstract:
A redissociating apparatus to carry out a process for redissociating Michael adducts which are present in a liquid F with a proportion by weight of ≧10% by weight and have been formed in the preparation of acrylic acid or esters thereof is provided. The apparatus comprises a pump P, a separating column K with separating internals and a circulation heat exchanger UW, wherein, for the purpose of supplying the cleavage energy, the pump P sucks in bottoms liquid from the bottom space of the separating column K and, via the circulation heat exchanger UW, continually recycles it into the bottom space above the level of the bottoms liquid, and wherein the pump P is a radial circulation pump with an open impeller.

Inventors:
フォルカー シュリープハーケ
トルステン フリーゼ
クラウス ボット
ミヒャエル ブレヒシュミット
ティル ブルーム
クラウス ヨアヒム ミュラー−エンゲル
Application Number:
JP2011540016A
Publication Date:
November 19, 2014
Filing Date:
November 30, 2009
Export Citation:
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Assignee:
ビーエーエスエフ ソシエタス・ヨーロピアBASF SE
International Classes:
C07C51/377; C07C51/42; C07C57/04; C07C67/297; C07C69/54
Attorney, Agent or Firm:
Takuya Kuno
Toshio Yano
Takahashi Yoshi size
Kiyoshi Kima
Star Kimihiro
Hiroyasu Ninomiya
篠 Ryoichi
アインゼル Felix-Reinhardt