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. 10, 2016
Filed:
Jun. 17, 2011
Bilge Yilmaz, Union, NJ (US);
Ulrich Müller, Neustadt, DE;
Meike Pfaff, Neunkirchen, DE;
Hermann Gies, Sprockhövel, DE;
Feng-shou Xiao, Changchun, CN;
Takashi Tatsumi, Kawasaki, JP;
Xinhe Bao, Dalian, CN;
Weiping Zhang, Dalian, CN;
Dirk DE Vos, Holsbeek, BE;
Hiroyuki Imai, Tokyo, JP;
Bin Xie, Chuangchun, CN;
Haiyan Zhang, Chuangchun, CN;
Bilge Yilmaz, Union, NJ (US);
Ulrich Müller, Neustadt, DE;
Meike Pfaff, Neunkirchen, DE;
Hermann Gies, Sprockhövel, DE;
Feng-Shou Xiao, Changchun, CN;
Takashi Tatsumi, Kawasaki, JP;
Xinhe Bao, Dalian, CN;
Weiping Zhang, Dalian, CN;
Dirk de Vos, Holsbeek, BE;
Hiroyuki Imai, Tokyo, JP;
Bin Xie, Chuangchun, CN;
Haiyan Zhang, Chuangchun, CN;
BASF SE, Ludwigshafen, DE;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Abstract
A process for the production of a zeolitic material having an LEV-type framework structure comprising YO2 and optionally comprising X203, wherein said process comprises preparing a mixture comprising one or more sources for YO2, one or more solvents, and optionally comprising seed crystals; and crystallizing the mixture; wherein Y is a tetravalent element, and X is a trivalent element, and wherein the crystallized mixture contains 0.1 wt.-% or less, more preferably 0.01 wt.-% or less of one or more metals M based on 100 wt.-% of YO2, wherein even more preferably the crystallized mixture contains no metal M, wherein M stands for sodium and/or potassium, wherein preferably M stands for the group of alkali and alkaline earth metals.