US 12,303,912 B2
Separation method for valuable resources
Tatsuya Yodose, Tokyo (JP); Ryoei Watanabe, Tokyo (JP); Hitoshi Sasaki, Tokyo (JP); Chihiro Nishikawa, Tokyo (JP); and Yoshihiro Honma, Tokyo (JP)
Assigned to DOWA ECO-SYSTEM CO., LTD., Tokyo (JP)
Appl. No. 17/797,548
Filed by DOWA ECO-SYSTEM CO., LTD., Tokyo (JP)
PCT Filed Jan. 29, 2021, PCT No. PCT/JP2021/003280
§ 371(c)(1), (2) Date Aug. 4, 2022,
PCT Pub. No. WO2021/157483, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-018752 (JP), filed on Feb. 6, 2020.
Prior Publication US 2023/0083016 A1, Mar. 16, 2023
Int. Cl. B03B 9/06 (2006.01); B03C 1/00 (2006.01); B07B 7/01 (2006.01); B09B 3/35 (2022.01); H01M 10/54 (2006.01); H01M 50/119 (2021.01); B09B 101/16 (2022.01); C22B 7/00 (2006.01)
CPC B03B 9/06 (2013.01) [B03C 1/00 (2013.01); B07B 7/01 (2013.01); B09B 3/35 (2022.01); H01M 10/54 (2013.01); H01M 50/119 (2021.01); B03B 2009/066 (2013.01); B03C 2201/20 (2013.01); B09B 2101/16 (2022.01); C22B 7/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A sorting method for valuable resources, the sorting method comprising:
thermally treating a target containing valuable resources, to melt aluminum and separate a melt;
pulverizing a thermally treated product remaining after the melt is separated, to obtain a pulverized product;
sorting the valuable resources from the pulverized product by a magnetic force; and
sorting the valuable resources sorted by the magnetic force into one valuable resource and another valuable resource in the valuable resources by a wind force,
further comprising after the pulverizing,
sieving the pulverized product, to classify the pulverized product into an oversize product and an undersize product,
wherein after the classifying, the oversize product is subjected to the sorting by the magnetic force, and
wherein in the classifying, sieving is performed with a sieve having a mesh size of 0.6 mm or greater but 2.4 mm or less.