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J. Cent. South Univ. Technol. (2009) 16: 0552-0557 DOI: 10.1007/s11771-009-0092-5 Purification and characterization of extracellular chitinase from a novel strain Aspergillus fumigatus CS-01... to Aspergillus fumigatus. Production of the chitinase is regulated by a inducible way and the maximum activity appears at 36 h in colloidal chitin culture. Purification of the chitinase is carried out......
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Effect of purification treatment on properties of Mg-Gd-Y-Zr alloy WANG Jie(王 杰), ZHOU Ji-xue(周吉学), TONG Wen-hui(童文辉), YANG Yuan-sheng(杨院生) Institute of Metal Research, Chinese Academy...; Abstract: Mg-Gd-Y-Zr alloy was purified by the method of filtering purification. The type, morphology, size distribution and volume......
Purification process of coal-based coke powder as anode for Li-ion batteriesYANG Juan(杨娟)1, 2, MA Lu-lu(马路路)2, ZHOU Xiang-yang(周向阳)2(1. Powder Metallurgy Research Institute, Central South University, Changsha 410083, China;2. School of Metalllurgy and Environment, Central South University, Changsha 410083, China)Abstract:A process of purification of coal-based coke powder as anode for Li-ion......
J. Cent. South Univ. Technol. (2007)03-0357-06 DOI: 10.1007/s11771-007-0071-7 Purification of chlorogenic acid...; Abstract: A system of polar ordered resins was established for purification......
molecular mass. The product was characterized by IR, 19F NMR and GC-MS, and the catalytic mechanism was analyzed finally.Key words:hexafluoropylene oxide; perfluorolyether; polymerization; purification......
Novel technology of purification of copper electrolyte XIAO Fa-xin(肖发新)1, ZHENG Ya-jie(郑雅杰)1, WANG Yong(王 勇)1, 2, XU Wei(许 卫)1, 2, LI Chun-hua(李春华)1, 2, JIAN Hong-sheng(简洪生)1, 2 1. School...: The effects of arsenic with different valence states on the purification of copper electrolyte were studied and a novel technology of purification of copper electrolyte by copper arsenite was proposed......
concentrates in the ferric chloride media, selective purification and chemical sedimentation, PbS concentrate can be converted into PbSO4. The conversion recovery is 97.39%, the purity of PbSO4 powder... to prepare the lead sulfate powder. Key words: lead sulfate; galena; preparation; leaching; purification  ......
-purification solution 表2 电炉锌粉的主要成分 Table 2 Main component of zinc powder in electric furnace 1.3 试验方法 试验过程中每次取高钴硫酸锌溶液2000 mL在预定的条件下进行试验,考察锌粉用量和加入方式,搅拌速度,反应温度和添加剂用量等因素对单段净化除钴和两段净化除钴效果的影响...在0.3:1,硫酸铜用量最佳控制在50 mg/L之间;第二段净化的锑钴比最佳控制在0.3:1,硫酸铜用量最佳控制在30 mg/L. 图2 第一段,第二段高温净化锌粉用量对除钴的影响 Fig. 2 Effect of zinc powder consumption at high temperature purification on cobalt removal 表3......