المنتجات الساخنة
A novel process for extracting lithium from lepidolite
Jun 01, 2012 The most important processes for the extraction of lithium from lepidolite are the sulfuric acid and the lime methods (Distin and Phillips, 1982). However, the extraction of lithium by sulfate acid method uses high concentration acid and the purification procedure is complex. The lime process uses limestone and requires a large amount of energy.
Contact
Extraction of Lithium from Lepidolite Using Mixed Grinding
extract Li from lepidolite via a water leaching treatment. Keywords: lepidolite; sodium sulfide; mixed grinding; lithium; water leaching 1. Introduction Lithium (Li), the lightest metal in nature, has unique electrochemical properties and the highest specific heat of the solid elements. Moreover, some lithium compounds possess flat
Contact
Extraction of lithium from lepidolite by sulfation
Jul 18, 2012 The lithium extraction efficiency of 91.61% could be reached with a mass ratio of lepidolite/Na 2 SO 4 /K 2 SO 4 /CaO of 1:0.5:0.1:0.1, and roasting at 850 °C for 0.5 h. XRD analysis showed that sulfation roasting caused the decompositions of the original aluminosilicate to NaSi 3 AlO 8,KAlSi 2 O 6 and CaAl 2 Si 2 O 8 .
Contact
Extraction of Lithium from Lepidolite Using Mixed Grinding
Mixed grinding with Na2S followed by water leaching was performed to extract Li from lepidolite. The leachability of Li increases dramatically in the ground mixture, regardless of the mixing ratio over the range of 1:1 to 3:1, while only 4.53% of Li was extracted in lepidolite ground without Na2S. The leachability increased with an increase of the grinding time, and ultimately, 93% of the Li
Contact
Extraction of lithium from lepidolite by sulfation
Abstract Sulfation roasting followed by water leaching process was used to extract lithium from lepidolite. Various parameters including roasting temperature, the amount of additions, and solid/liquid ratio in leaching process were optimized. The lithium extraction efficiency of 91.61% could be reached with a mass ratio of lepidolite/Na 2 SO 4 /K 2 SO 4 /CaO of 1:0.5:0.1:0.1, and roasting at
Contact
Extraction of lithium from lepidolite using.pdf Lithium
Trans. Nonferrous Met. Soc. China 22(2012) 17531759. Extraction of lithium from lepidolite using chlorination roastingwater leaching process YAN Qun-xuan, LI Xin-hai, WANG Zhi-xing, WANG Jie-xi, GUO Hua-jun, HU Qi-yang, PENG Wen-jie, WU Xi-fei School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China Received 11 July 2011; accepted 9 January 2012
Contact
(PDF) Extraction of lithium from primary and secondary
(°C) Time (h) Lepidolite 935 13 80 1~100 LiCl Löf and Lewis (1942) Spodumene (3.58% Li) 1000 4 10:1 80 1 58 LiCl Peterson and Gloss (1959) Lepidolite concentrate (2.0% Li) 880 0.5 2.5:1 60 0.5 92.8 Li 2 CO 3 Yan et al. (2012d) Spodumene (7.2% Li 2 O) 1100 2.5 - 100 LiCl Barbosa et al. (2014) Lepidolite ore (3.70% Li 2 O) With CaCO 3
Contact
Commercial Lithium Production and Mining of Lithium
Aug 21, 2020 In contrast to salar brine sources, extraction of lithium from spodumene, lepidolite, petalite, amblygonite, and eucryptite requires a wide range of processes. Because of the amount of energy consumption and materials required, lithium production from mining is a much more costly process than brine extraction, even though these minerals have a
Contact
Hard Rock Lithium Processing SGS
from hard rock lithium minerals. SGS offers a multi-disciplinary team that is involved from the initial stages of the characterization of the lithium deposit to the production of a market sample of a high grade lithium product. SGS provides the comprehensive range of testwork capabilities required to extract lithium. These capabilities include:
Contact