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:
Sep. 23, 2014
Filed:
Feb. 09, 2012
Dirk Bermann, Mülheim, DE;
Guido D. Frey, Riedstadt, DE;
Norman Nowotny, Essen, DE;
Kurt Schalapski, Oberhausen, DE;
Heinz Strutz, Moers, DE;
Dirk Bermann, Mülheim, DE;
Guido D. Frey, Riedstadt, DE;
Norman Nowotny, Essen, DE;
Kurt Schalapski, Oberhausen, DE;
Heinz Strutz, Moers, DE;
Oxea GmbH, Oberhausen, DE;
Abstract
The invention relates to a continuous method for carrying out a multiphase aldol condensation reaction to obtain mixed α,β-unsaturated aldehydes by reacting a mixture of two aliphatic aldehydes having different numbers of carbon atoms, i.e. 2 to 5, in the molecule in a vertical tubular reactor in a concurrent flow in the presence of an aqueous solution of a basically reacting compound. In said method, the aldehyde mixture is dispersed in the aqueous phase in the form of drops, and the aqueous solution of the basically reacting compound flows through the tubular reactor as a continuous phase in laminar conditions.