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:
May. 22, 2001
Filed:
Jun. 25, 1999
Jürgen Hess, Hofheim, DE;
Matthias Stumpf, Wiesbaden, DE;
Abstract
The invention relates to a process for cooling polymerization reactors in the preparation of polyolefins, the polymerization being carried out in a first reactor and in at least one further reactor, the further reactor or reactors being connected downstream of the first reactor and each being cooled by an internal cooling circuit in which a cooling medium circulates. The invention comprises feeding cooling medium from the cooling circuit (,) of the first reactor (,) into the cooling circuit (,) of at least one further reactor (,) and taking off the same amount of cooling medium from the cooling circuit (,) of this reactor (,), cooling it and recirculating it into the cooling circuit (,) of the first reactor (,).