| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
M-80: A Novel Depressant of Sodium Polyacrylate for Magnesite Flotation |
| Author(s) |
Hongwei Cheng, Changmiao Liu, Dong Dong, Zihu Lv, Fei Yang |
| On-Site Speaker (Planned) |
Hongwei Cheng |
| Abstract Scope |
In order to inhibit magnesite effectively, a new macromolecule reagent, sodium polyacrylate (SP), is introduced. Micro-flotation results indicate that SP can strongly inhibit the flotation of magnesite in a wide pH range. When pH=9, the flotation recovery of magnesite is 90%. After increasing the dosage of SP to 10mg/L, the flotation recovery of magnesite declines to below 20%. Mineral crystal structure and solution chemistry show that SP easily absorbs the Mg2+ active sites on the surface of magnesite. Meanwhile, SP could form a bridge among the magnesite particles and lead to the flocculation and sedimentation, thus inhibiting the magnesite flotation. |
| Proceedings Inclusion? |
Planned: |