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Abstract:
基于单因素条件实验结果,对α型锂辉石在混酸介质HF/H_2SO_4中不同温度下的浸出动力学进行系统研究。结果表明:在矿物/HF/H_2SO_2比1 g:3 mL:2 mL、50~100°C条件下,锂的浸出过程符合缩核动力学模型,浸出速率主要由表面化学反应以及产物固膜扩散共同控制,表观活化能Ea为32.68 kJ/mol。对固相不溶渣及浸出液组成的分析结果显示:固膜的形成主要由浸出过程中不溶氟化物,如锂钠冰晶石(Na_3Li_2Al_2F_(12))、钠冰晶石(Na_3AlF_6)、氟化钙(CaF_2)、钾冰晶石(K-2AlF_5)、氟化铝(AlF_3)及少量氟硅酸盐(Na_SiF_6、KNaS...
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Transactions of Nonferrous Metals Society of China
ISSN: 1003-6326
CN: 43-1239/TG
Year: 2019
Issue: 02
Volume: 29
Page: 407-415
2 . 6 1 5
JCR@2019
4 . 7 0 0
JCR@2023
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:236
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 6
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