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US 11,299,796 B2Granted
Method for recovering a minor metal and/or rare-earth metal
AssigneesJX Nippon Mining & Metals Corporation, Toho Titanium Co., Ltd.
InventorsKota Nakashima, Akira Yoshimura, Seiichiro Tani
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Abstract
An object of the present invention is to recover a minor metal and/or rare-earth metal. The present invention provides a method for recovering a minor metal and/or rare-earth metal from a post-chlorination residue in titanium smelting. The minor metal and/or rare-earth metal is one or more metal selected from the group consisting of Sc, V, Nb, Zr, Y, La, Ce, Pr, and Nd.
Claims7
A method for recovering a minor metal and/or rare-earth metal from a post-chlorination residue, the method comprising:
- classifying the post-chlorination residue into a first set of particles and a second set of particles, the first set of particles having particles that are bigger than particles in the second set of particles
- recovering the smaller particles, and
- leaching the minor metal and/or rare-earth metal from the smaller particles into solution,
- wherein the post-chlorination residue is produced as by-product in a process of titanium smelting,
- wherein the minor metal and/or rare-earth metal is one or more metal selected from the group consisting of Sc, V, Nb, Zr, Y, La, Ce, Pr, and Nd, and
- wherein the classifying is performed based on the criteria of a particle size of 55 μm or less.
3 more elements
Dependencies are inferred from the claim text.