|
| Settling Performance Study on Acid Leaching Pulp of Fine Laterite Nickel Ore with Dual-Flocculant |
|
Received:July 23, 2018
Revised:May 31, 2019
Accepted:August 21, 2018
Published Online:August 26, 2019
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:laterite nickel ore; leaching pulp; settling; filtration |
| Author | Institution |
| LIU Liyan |
School of Chemical Engineering and Technology at Tianjin University |
| ZHAO Cong |
School of Chemical Engineering and Technology at Tianjin University |
| LI Shengnan |
School of Chemical Engineering and Technology at Tianjin University |
| WANG Yang |
School of Chemical Engineering and Technology at Tianjin University |
|
| Hits: 2182 |
| Download times: 1508 |
| Abstract: |
| Aiming at low grade laterite nickel ore, acid leaching is usually used to smelt minerals. In the acidic leaching pulp of laterite nickel ore, the separation of solid and liquid is difficult due to the small particle size. To solve the problem of long separation time and low efficiency of solid liquid separation of laterite nickel ore after acid leaching, the leaching solution was treated by the combination of cationic polyacrylamide and polymeric ferric sulfate. The sedimentation rate of the leaching solution was increased by 25.5 times, the vacuum pumping time was shortened by 60%, the water content of the filter cake was reduced by 10%, and the difficulty of the subsequent process was reduced. This experiment provides an effective solution for solid-liquid separation of suspension, which has great guiding significance for practical engineering application. |
| Close |