In-situ capturing of fluorine with CaO for accelerated defluorination roasting of lepidolite (cas 1317-64-2) in a fluidized bed reactor
-
Add time:08/16/2019 Source:sciencedirect.com
In-situ capturing of fluorine (F) with CaO in a fluidized bed reactor is proposed to accelerate the defluorination reaction and to improve the lithium extraction from lepidolite (cas 1317-64-2) ore. Compared to the roasting process without addition of CaO, the Li extraction efficiency is improved by ca. 15 percentage points in the present of CaO during the roasting reaction. And more than 91% of the fluorides volatilized from the lepidolite are captured by CaO particles in the fluidized bed reactor and are converted to CaF2. The formation of CaF2 on the surface of CaO particle is attributed to the generated HF from the lepidolite particles. The in-situ capturing of HF by addition of CaO changes the thermodynamic equilibrium state that benefits the defluorination reaction. Therefore, the in-situ capturing of fluorine with CaO in fluidized bed reactor is a promising method for the de-fluorinate and for the lithium extraction for versatile applications.
We also recommend Trading Suppliers and Manufacturers of lepidolite (cas 1317-64-2). Pls Click Website Link as below: cas 1317-64-2 suppliers
Prev:A novel process for the selective precipitation of valuable metals from lepidolite (cas 1317-64-2)
Next:Recovery of valuable metals from lepidolite (cas 1317-64-2) by atmosphere leaching and kinetics on dissolution of lithium) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Effects of mechanical activation on lithium extraction from a lepidolite (cas 1317-64-2) ore concentrate08/21/2019
- Thermo- and cathodoluminescence properties of lepidolite (cas 1317-64-2)08/20/2019
- Recovery of lithium carbonate by acid digestion and hydrometallurgical processing from mechanically activated lepidolite (cas 1317-64-2)08/19/2019
- Enhanced acid treatment to extract lithium from lepidolite (cas 1317-64-2) with a fluorine-based chemical method08/18/2019
- Recovery of valuable metals from lepidolite (cas 1317-64-2) by atmosphere leaching and kinetics on dissolution of lithium08/17/2019
- A novel process for the selective precipitation of valuable metals from lepidolite (cas 1317-64-2)08/15/2019