Original document(11 pages)  中文版
    The invention relates to a method for the distillative recovery of TDA from an educt flow containing TDA, high boilers, and low boilers in a partition column in which a partition is disposed in the longitudinal direction of the column so as to form a common upper column zone (2), a common bottom column zone (3), a feeding section (4) that encompasses a rectification section (5) and a stripping section (6), and a withdrawal section (7) encompassing a rectification section (9) and a stripping section (8). The inventive method comprises the following steps: A) the educt flow (13) is delivered to the feeding section (4) of the partition column (1); B) a low boiler fraction is discharged via the top (11) of the column; C) TDA is discharged via a lateral discharge point (14) located in the withdrawal section (7) of the partition column (1); D) a high boiler fraction is discharged via the bottom (12) of the column.
Application Number
申请号
200580002158 Application Date
申请日
2005.01.07
Title 名称 Method for the distillative recovery of toluylenediamine
Publication Number
公开号
1910133 Publication Date
公开日
2007.02.07
Approval Pub. Date Granted Pub. Date
International Classification 分类号 C07C209/84;C07C211/50
Applicant(s) Name
申请人
BASF AG
Address 地址
Inventor(s) Name 发明人 Knosche Carsten;Sohn Martin;Penzel Ulrich;Pallasch Hans Jurgen;Georgi Gunter;Mackenroth Wolfgang;Schwarz Hans Volkmar;Maixner Stefan;Molz Gerald;Stroefer Eckhard
Attorney & Agent 代理人 lin bainan liu jinhui
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