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:
Dec. 02, 2025
Filed:
Nov. 05, 2020
Applicant:
Cap Iii B.v., El Urmond, NL;
Inventors:
Johan Thomas Tinge, El Urmond, NL;
Peter Roos, El Urmond, NL;
Louise Annemarie Groot Zevert, El Urmond, NL;
Anna Dite Cuiper, El Urmond, NL;
Assignee:
CAP III B.V., El Urmond, NL;
Primary Examiner:
Int. Cl.
CPC ...
C07D 201/04 (2006.01);
U.S. Cl.
CPC ...
C07D 201/04 (2013.01);
Abstract
The invention provides a process and a plant for the production of ε-caprolactam and crystalline ammonium sulfate in an industrial-scale plant, wherein the plant comprises a Beckmann rearrangement reaction section, an ammonium sulfate crystallization section, and one or more heat exchangers configured to transfer heat from the Beckmann rearrangement reaction section to the ammonium sulfate crystallization section and wherein the process comprises the steps of: