US 12,404,180 B2
Highly wear-resistant zeolite molded article, and method for manufacturing same
Yuki Oba, Yamaguchi (JP); Keisuke Tokunaga, Yamaguchi (JP); and Yoju Shimizu, Yamaguchi (JP)
Assigned to TOSOH CORPORATION, Yamaguchi (JP)
Appl. No. 17/780,518
Filed by TOSOH CORPORATION, Yamaguchi (JP)
PCT Filed Nov. 26, 2020, PCT No. PCT/JP2020/044028
§ 371(c)(1), (2) Date May 27, 2022,
PCT Pub. No. WO2021/107014, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 2019-214978 (JP), filed on Nov. 28, 2019.
Prior Publication US 2022/0411276 A1, Dec. 29, 2022
Int. Cl. C01B 39/20 (2006.01); C01B 39/38 (2006.01)
CPC C01B 39/20 (2013.01) [C01B 39/38 (2013.01)] 8 Claims
 
1. A highly wear resistant zeolite molded article comprising 100 parts by weight of zeolite, 35 parts by weight or more and 70 parts by weight or less of clay, 5 parts by weight or more and 40 parts by weight or less of a silica sol and 0.5 parts by weight or more and 10 parts by weight or less of a water-soluble sodium salt, having an abrasion resistance of 90% or more, an angle of repose of 40° or less, an aerated bulk density of the surface of the zeolite molded article of 0.5 kg/L or more, and a sphericity of the zeolite molded article of 1 or more and 3 or less, wherein the zeolite contains at least one type of zeolite having Si/Al2 of 10 or more and 100,000 or less and a moisture adsorption amount of 10 (g/100 g) or less at 25° C. under a relative pressure of 0.5.