公开(公告)号：US20250058309A1

公开(公告)日：2025-02-20

申请号：US18721057

申请日：2022-12-12

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Suman Kumar Sen ,  Prashant Patil ,  Surya Prakasa Rao Daliparthi ,  Dwairath Dhar ,  Amit Kumar Mondal ,  Paulus Johannes Maria Eijsbouts ,  Rudolf Martinus Petrus van der Heijden ,  Gert-Jan Schoenmakers ,  Mouli Murukutla

IPC: B01J35/53 ,  B01J35/40 ,  B01J37/00 ,  C07C37/20

Abstract: The present invention relates to a method for carrying out a catalysed chemical reaction using one or more liquid reactants, preferably acetone and phenol to form bisphenol A, in an upflow reactor comprising feeding at least a portion of said reactants to a bottom section of the reactor positioned below a flow distributor plate, passing said portion through the flow distributor plate, passing said portion through a layer of inert particles positioned above and preferably in contact with said flow distributor plate, passing said portion through a catalyst layer comprising a particulate catalyst, said catalyst layer being positioned above and in contact with said layer of inert particles, wherein the reactants react to form a product stream, collecting said product stream via collecting means positioned above said catalyst layer. The invention also relates to a reactor assembly. The catalyst is a core-shell catalyst which is manufactured by graft polymerizing aromatic vinyl compounds onto the hydroxylated and functionalized core particles, followed by sulfonation.