US 12,286,687 B1
Polymetallic-ore beneficiation and separation reagent, preparation method and use thereof
Bozeng Wu, Beijing (CN); Hongxin Qiu, Beijing (CN); and Xiaohao Sun, Beijing (CN)
Assigned to Beijing LRS Technology Co., Ltd., Beijing (CN)
Filed by Beijing LRS Technology Co., Ltd., Beijing (CN)
Filed on Nov. 15, 2024, as Appl. No. 18/948,585.
Claims priority of application No. 202410288868.X (CN), filed on Mar. 14, 2024.
Int. Cl. C22B 3/16 (2006.01); C22B 3/00 (2006.01); C22B 3/22 (2006.01); C22B 11/00 (2006.01); C22B 15/00 (2006.01); C22B 19/20 (2006.01)
CPC C22B 3/165 (2013.01) [C22B 3/22 (2013.01); C22B 11/04 (2013.01); C22B 13/04 (2013.01); C22B 15/0086 (2013.01); C22B 19/20 (2013.01)] 9 Claims
 
1. A preparation method for a polymetallic-ore beneficiation and separation reagent, comprising steps of:
(1) mixing a substance A, caustic soda, soda ash and sodium polysulfide, and then heating a mixture and performing a catalytic reaction, to render an intermediate product B, wherein the substance A comprises one or more of urea, glycine, urea peroxide, ammonium cyanate and isocyanic acid; and
(2) mixing the intermediate product B with trichloroisocyanuric acid, dichloroisocyanuric acid and 2-amino-3-(4-imidazolyl)propanoic acid, to render the polymetallic-ore beneficiation and separation reagent,
wherein a catalyst for the catalytic reaction comprises at least one of an Au/TiO2 catalyst, a Pd—Cu/C bimetallic catalyst or a magnetic nanocatalyst,
wherein the magnetic nanocatalyst comprises at least one of Fe3O4—TiO2, TiO2 and FeCo@C nanoparticles.