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. 05, 2009
Filed:
Jan. 30, 2002
Hermann Gebhart, Böhl-Iggelheim, DE;
Volker Dolle, Bensheim, DE;
Elisabeth Glattki-mayer, Legal Representative, Ludwigshafen, DE;
Angel Sanchez, Tarragona, ES;
Herbert Plötz, Schifferstadt, DE;
Peter Götz, Böhl-Iggelheim, DE;
Franz Langhauser, Ruppertsberg, DE;
Hermann Gebhart, Böhl-Iggelheim, DE;
Volker Dolle, Bensheim, DE;
Elisabeth Glattki-Mayer, legal representative, Ludwigshafen, DE;
Angel Sanchez, Tarragona, ES;
Herbert Plötz, Schifferstadt, DE;
Peter Götz, Böhl-Iggelheim, DE;
Franz Langhauser, Ruppertsberg, DE;
Basell Polyolefine GmbH, Wesseling, DE;
Abstract
To meter catalysts into a reactor, the catalyst is firstly suspended in a hydrocarbon in a reservoir and the suspension obtained is kept in motion by stirring and then fed via a three-way metering valve and an ejector into the actual reactor, wherein the suspension containing the catalyst is firstly discharged from the reservoir by means of a pump and continuously circulated by returning the suspension via the three-way metering valve within a closed piping system to the reservoir, subsequently setting a pressure in the reservoir which is from 0.1 to 30 bar higher than the pressure in the reactor and then continuously introducing the suspension into the reactor via a flow meter which controls the three-way metering valve and via a downstream ejector by pulse operation of the now open three-way metering valve.