	US 11,772,074 B2
	Method for production of vanadium catalysts
Feng Zhao, Shanghai (CN); Liang Chen, Shanghai (CN); Jia Di Zhang, Shanghai (CN); and Feng Yang, Shanghai (CN)
Assigned to BASF Corporation
Appl. No. 17/309,526
Filed by BASF Corporation, Florham Park, NJ (US)
PCT Filed Dec. 12, 2019, PCT No. PCT/CN2019/124867 § 371(c)(1), (2) Date Jun. 3, 2021, PCT Pub. No. WO2020/119763, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. PCT/CN2018/121197 (WO), filed on Dec. 14, 2018.
Prior Publication US 2022/0055018 A1, Feb. 24, 2022
Int. Cl. B01J 23/22 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 21/06 (2006.01); B01J 23/00 (2006.01); B01J 35/04 (2006.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01)

CPC B01J 23/22 (2013.01) [B01D 53/8628 (2013.01); B01D 53/9418 (2013.01); B01J 21/063 (2013.01); B01J 23/002 (2013.01); B01J 35/04 (2013.01); B01J 37/038 (2013.01); B01J 37/04 (2013.01); B01J 37/082 (2013.01); F01N 3/2066 (2013.01); F01N 3/2828 (2013.01); B01D 2255/2098 (2013.01); B01D 2255/20723 (2013.01); F01N 2330/06 (2013.01); F01N 2370/02 (2013.01)]

16 Claims

1. A method for producing antimony vanadium composite oxide catalysts, comprising:

1) Providing a mixture comprising a TiO₂-based support and a composite oxide containing vanadium and antimony, wherein the mixture in step 1), is prepared by a process comprising sub-steps:

1.1) preparing a mixture comprising a vanadium precursor, an antimony precursor, and the TiO₂-based support or a precursor thereof, optionally with a solvent;

1.2) drying or heating the mixture at a temperature ranging from 80° C. to 250° C.; and

1.3) calcining at a temperature ranging from 300° C. to 700° C. in an oxygen-containing atmosphere to obtain a mixture comprising a TiO₂-based support and a composite oxide containing vanadium and antimony;

2) preparing a slurry comprising the mixture obtained from step 1), an additive comprising a solvent and one or more species selected from the group consisting of Si, Al, Zr, Ti, W and Mo; and

3) applying the slurry onto a substrate or processing the slurry into shaped bodies.