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:
Jun. 13, 2017
Filed:
Jul. 23, 2014
Oxea Bishop Llc, Dallas, TX (US);
Michael J. Stone, Lake Jackson, TX (US);
Howard W. Brooks, Bay City, TX (US);
Heinz Strutz, Moers, DE;
Donald K. Raff, Waynesville, NC (US);
Guido D. Frey, Mülheim, DE;
Norman Nowotny, Essen, DE;
Marcos L. Schroeder, Andover, KS (US);
Fred Gaytan, Kingsville, TX (US);
Tracy Kevin Hunt, Corpus Christi, TX (US);
William E. Slinkard, Richmond, TX (US);
OXEA BISHOP LLC, Dallas, TX (US);
Abstract
A multistage tubular reaction system and method for preparing methylol derivatives of an aldehyde includes a tubular reaction system with a plurality of successive reactor stages comprising a plurality of jacketed reaction tubes provided with a cooling system adapted to control flow of a cooling medium through said jacketed reaction tubes. The cooling medium flow is controlled independently in different stages in response to temperature measurements in the reaction system to regulate temperature. In order to further reduce temperature spikes and byproduct generation, aldehyde is stepwise added to the production stream at a plurality of feed ports proximate to reaction tubes equipped with tube inserts to enhance mixing and heat transfer.