|About this Abstract
||Part C-1: Hydrometallurgy 2018
||Adsorbent for Selective Recovery of Antimony
||Takeshi Ogata, Hirokazu Narita, Mikiya Tanaka
|On-Site Speaker (Planned)
We have synthesized an adsorbent for selective recovery of antimony from copper electrolyte, which contains antimony, arsenic, and bismuth as impurities. The adsorbent is made from tannin which is one of the biomass materials that are inexpensive and ubiquitous natural polymers extracted from leaves or barks of plants and has many hydroxyl groups. It was found that the tannin adsorbent adsorbed antimony from 200 g/L sulfuric acid solution. Arsenic and bismuth, on the other hand, were little adsorbed onto the adsorbent in the experimental conditions. As the result, the tannin adsorbent has the possibility for selective separation of antimony from copper electrolyte. We conducted the recovery test of antimony from simulated copper electrolyte using the tannin adsorbent-packed column. Antimony in the simulated solution was adsorbed, and the other elements were not adsorbed. The adsorbed antimony could be easily desorbed by hydrochloric acid and recovered with high concentration and purity.
||Planned: At-meeting proceedings