公开(公告)号：US20240158245A1

公开(公告)日：2024-05-16

申请号：US18550143

申请日：2022-03-18

Applicant: BASF SE

Inventor： Trees Maria De Baerdemaeker ,  Andrei-Nicolae Parvulescu ,  Faruk Oezkirim ,  Ke Jin ,  Ulrich Mueller ,  Alvaro Gordillo Bolonio ,  Lukasz Karwacki

IPC: C01B39/02

CPC classification number: C01B39/026

Abstract: This disclosure relates to a process for the dealumination of a zeolitic material including



(1) providing a zeolitic material having a tetravalent element and a trivalent element;
(2) providing an aqueous solution having a pH of less than 0.1;
(3) treating the zeolitic material with the aqueous solution; and

with an aqueous solution or with a solvent system, wherein the aqueous solution or the solvent system have a pH comprised in the range of from 4 to 10, wherein the pH of the aqueous solution or of the solvent system refers to the pH prior to contacting with the zeolitic material for treatment thereof. This disclosure also relates to a zeolitic material as obtained and/or obtainable according to said process.