李志宝

中国科学院过程工程研究所研究员

博士,清华大学化工系, 1998.博士, McGill University,冶金材料工程系, 2002-2006研究员, University of Ottawa, 1999-2001.

博士,清华大学化工系, 1998.博士, McGill University,冶金材料工程系, 2002-2006

研究员, University of Ottawa, 1999-2001.

教育背景

博士, 清华大学化工系, 1998. 博士, McGill University,冶金材料工程系, 2002-2006

研究员, University of Ottawa, 1999-2001.

研究员, McGill University, 2001-2002.

研究方向

过程湿法冶金(Process Hydrometallurgy)

工业沉淀结晶(Industrial Crystallization and Precipitation)

盐湖及冶金溶液体系热力学(Thermodynamics of Salt Lake and Metallurgical Systems)

过程湿法冶金(Process Hydrometallurgy)

湿法冶金是将矿石、经选矿富集的精矿或其他原料与水溶液或者其他液体相接触,通过化学反应等,使原料中所含有的金属转入液相,再对液相中所含有各种有用金属进行分离富集,最后以金属或者其他化合物的形式加以回收的方法。湿法冶金以无机化学物理化学等理论学科为基础,主要应用领域包括浸取,富集和净化,金属回收。本课题组研究方向是低品位矿物浸取包括低品位铝土矿钼精矿等,浸取采用包括原位浸取、堆浸取、和容器浸取等方式,利用酸、碱、加压手段,将铝土矿、辉钼矿中的硅脱除,使铝土矿中的铝硅比由4:1~5:1提高到10:1以上,使辉矿纯度提高到98%。

工业沉淀结晶(Industrial Crystallization and Precipitation)

结晶沉淀是化学工艺中的基本过程,化学工业采用结晶沉淀生产的产品占到总固体产品的70%。结晶沉淀由于操作条件上的低温低能耗和产品上的纯度高,常用于分离和净化。操作条件决定着结晶产品的性质包括纯度、过滤性能、流动性、反应性能等,要得到性能优异的产品就需要掌握结晶过程中过饱和度的控制、成核、晶体生长、陈化以及二次成核等方面的知识与方法。本课题研究的结晶过程包括碳酸镁水合物的沉淀过程及氯化铵的结晶过程,通过建立沉淀结晶过程的数学模型和结晶器流体流动模型,提出一套用于反应结晶器设计、放大和优化的方法。

盐湖及冶金溶液体系热力学(Thermodynamics of Salt Lake and Metallurgical Systems)

盐湖和冶金溶液体系热力学的汽液平衡、液液平衡和固液平衡研究是工艺设计开发和模拟优化的基础。课题组利用化工热力学模型(如Pitzer,Electrolyte-NRTL,UNIFAC等)和化工软件(如Aspen Plus, OLI software),对实验室测得的少量实验数据进行处理,得到相关的参数,从而计算出过程开发中大量的有用数据。课题组建立了盐湖卤水和铝土矿浸取体系热力学模型,并建立了原创性表面张力模型。课题组开展含离子液体体系热力学性质的研究并建立离子液体性质的热力学模型,如采用硬球微扰理论来描述分子之间的排斥作用和色散吸引作用,采用基于平均球近似的积分方程理论来描述阴阳离子之间的静电作用,建立了离子液体密度的热力学模型。

近期发表论文:

1. Cheng Wenting; Li Zhibao . Controlled supersaturation precipitation of hydromagnesite for the MgCl2-Na2CO3 system at elevated temperatures: chemical modeling and experiment. Industrial & Engineering Chemistry Research. Inpress.

2. Ma Jiayu; Li Zhibao; Zhang Yi; George.P Demopoulos. Desilication of sodium aluminate solution by Friedel's salt(FS: 3CaO·A12O3·CaCl2·10H2O). Hydrometallurgy (2009), 3, 225-230.

3. Cheng Wenting; Li Zhibao. Precipitation of nesquehonite from homogeneous supersaturated solutions. Crystal Research Technology (2009) 9 , 937-947.

4. Cheng Wenting, Li Zhibao, George P. Demopoulos. Effects of Temperature on the Preparation of Magnesium Carbonate Hydrates by Reaction of MgCl2 with Na2CO3. Chinese Chemical Engineering Journal(2009), 4, 661-666.

5. Dong Mei; Li Zhibao; Mi Jianguo; Demopoulos GP. Solubility and stability of Nesquehonite (MgCO3·3H2O) in Mixed NaCl + MgCl2, NH4Cl + MgCl2, LiCl and LiCl + MgCl2 Solutions. Journal Chemical Engineering Data (2009),54, 3002–3007.

6. Dong Mei; Cheng Wenting; Li Zhibao;George.P Demopoulos. Solubility and Stability of Nesquehonite (MgCO3×3H2O) in NaCl, KCl, MgCl2, and NH4Cl Solutions. Journal Chemical Engineering Data(2008),53, 2586-2593.

7. Wang Yong; Li Zhibao; Demopoulos George P. Controlled precipitation of nesquehonite by the reaction of MgCl2 with (NH4)2CO3 at 303K. Journal of Crystal Growth(2008), 310,1220-1227.

8. Demopoulos, George P.; Li, Zhibao et al New Technologies for HCl Regeneration in Chloride Hydrometallurgy. Erzmatall(2008), 61(2) 89-98.

9. Liu, Yan; Li, Zhibao; Mi, Jianguo; Zhong, Chongli Modeling of Aqueous Electrolyte Solutions Based on Primitive and First-Order Mean Spherical Approximation. Industrial & Engineering Chemistry Research (2008), 47, 1695-1701.

10. Li, Zhibao; Demopoulos, George P. Speciation-Based Chemical Equilibrium Model of CaSO4 Solubility in the H + Na + Ca+ Mg + Al + Fe(II) + Cl + SO4 + H2O System. Industrial & Engineering Chemistry Research (2007), 46, 6385-6392.

11. Li, Zhibao; Demopoulos, George P. Model-Based Construction of Calcium Sulfate Phase-Transition Diagrams in the HCl-CaCl2-H2O System between 0 and 100 C. Industrial & Engineering Chemistry Research(2006), 45(13), 4517-4524.

12. Li, Zhibao; Demopoulos, George P. Development of an Improved Chemical Model for the Estimation of CaSO4 Solubilities in the HCl-CaCl2-H2O System up to 100 C. Industrial & Engineering Chemistry Research (2006), 45(9), 2914-2922.

13. Li, Zhibao; Demopoulos, George P. Effect of NaCl, MgCl2, FeCl2, FeCl3, and AlCl3 on Solubility of CaSO4 Phases in Aqueous HCl or HCl + CaCl2 Solutions at 298 to 353 K. Journal of Chemical & Engineering Data(2006), 51(2), 569-576.

14. Li, Zhibao; Demopoulos, George P. Solubility of CaSO4 Phases in Aqueous HCl + CaCl2 Solutions from 283 K to 353 K. Journal of Chemical and Engineering Data (2005), 50(6), 1971-1982.

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