In-situ copper ion-exchange on pre-exchanged copper zeolitic material

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United States of America Patent

PATENT NO 11660586
SERIAL NO

17309015

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Abstract

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A process for preparing a catalyst comprising a zeolitic material comprising copper, the process comprising (i) preparing an aqueous mixture comprising water, a zeolitic material comprising copper, a source of copper other than the zeolitic material comprising copper, and a non-zeolitic oxidic material selected from the group consisting of alumina, silica, titania, zirconia, ceria, a mixed oxide comprising one or more of Al, Si, Ti, Zr, and Ce and a mixture of two or more thereof; (ii) disposing the mixture obtained in (i) on the surface of the internal walls of a substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the substrate extending therethrough; and optionally drying the substrate comprising the mixture disposed thereon; (iii) calcining the substrate obtained in (ii).

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Patent Owner(s)

  • BASF CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dai, Yu Shanghai, CN 11 2
Dumbuya, Karifala Hannover, DE 14 40
Heenemann, Maria Hannover, DE 4 0
Liu, Yi Huntsville, US 755 9333
Maurer, Stefan Shanghai, CN 43 184
Moini, Ahmad Iselin, US 84 1167
Peter, Matthias Hannover, DE 61 593
Schubert, Miriam Nienburg/Weser, DE 1 0
Wei, Ming-Ming Shanghai, CN 1 0
Xue, Wen-Mei Iselin, US 36 383
Zhu, Haiyang Iselin, US 21 46

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