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| 1 | Reduction of low-grade manganese oxide ore by biomass roasting显示文摘The reduction process of manganese dioxide in low-grade manganese ore by biomass roasting was investigated.The calcine of manganese oxide ore was further leached by sulphuric acid, the manganese in ore can be converted into manganese sulfate.Effects of the mass ratio of manganese ore to sawdust, roasting temperature and time, leaching temperature and time, leaching agent concentration and liquid-solid ratio were studied.97.71% of manganese recovery can be achieved under the optimal conditions:the mass ratio of manganese ore to sawdust of 5:1, roasting temperature at 500℃ for 40 min, leaching temperature at 60℃ for 40 min, sulphuric acid concentration of 1 mol/L and liquid-solid ratio of 10:1.Other types of low-grade manganese ore like Guilin ore, Nanning ore and Gongcheng ore were tested and the same results were obtained. | Jingjing SONG Guocai ZHU Ping ZHANG Yuna ZHAO | 2010 | Acta Metallurgica Sinica(English Letters)2010，23，3： | 14 |
| 2 | Recovering indium with sulfating roasting from copper-smelting ash显示文摘A technology for recovering indium from Jinchuan copper-smelting ash was developed. Indium in the ash was first enriched to the leaching-slag in leaching process,and then recovered by sulfating roasting. The method included mix-ing the leaching-slag with sulfuric acid,making them into particles,roasting the mixture,and then leaching the calcine with hot water. Above 90% of indium in calcine could be dissolved into the leaching solution. The optimized conditions were determined as follows: the mass ratio of sulfuric acid to leaching slag was 0.1,the roasting time was about 1 to 1.5 h in the temperature range of 200-250°C,and the calcine was leached for 1 h with 5:1 of liquid/solid ratio at 60°C. Over 99% of in-dium in leaching solution was finally enriched by Zn substitution or sulfide precipitation. | ZHU Guocai ZHENG Mingdan FAN Guanglong ZHAO Yuna | 2007 | Rare Metals2007，26，5： | 12 |
| 3 | CHEMICAL BEHAVIOR OF CERIUM ELEMENT IN ROCK WEATHERING SYSTEM显示文摘1INTRODUCTIONTheelectronicstructureofgroundstateatomceriumisXe4f15d16s2,andtheelectronicstructureoftrivalentoxidizingstateisX... | Chi, Ru'an Zhu, Guocai Zhang, Ping Xu, Yinghui | 1999 | 中国有色金属学会会刊:英文版1999，9，1： | 10 |
| 4 | Partitioning properties of rare earth ores in China显示文摘The properties of rare earth partitioning in Chinese industrial rare earth ores were analyzed. Rare earth ores canbe divided into the single-mineral type ore with bastnaesite, the multi-mineral type ore with bastnaesite and monazite, andthe weathering crust type. Both the Bayan Obo rare earth ore and the Zhushan rare earth ore are a kind of mixed ore, con-sisting of bastnaesite and monazite. Their rare earth partitionings are strongly enriched in light rare earths, where CeO2 is50% and the light rare earth partitioning is totally over 95%. The Mianning rare earth ore as well as the Weishan rare earthis a kind of rare earth ore only having bastnaesite. Their rare earth partitionings are also strongly enriched in light rare earths,in which CeO2 is 47% and the light rare earth partitioning is totally over 94%. For the weathering crust type rare earth ore,there are the Longnan rare earth ore, the Xunwu rare earth ore, and the middle yttrium and rich europium ore. In the Long-nan rare earth ore, which is strongly enriched in heavy rare earths, Y2O3 is 64.83%, and the heavy and light rare earthpartitionings are 89.40% and 10.53%, respectively. In the Xunwu rare earth ore, which is strongly enriched in light rareearths, CeO2 is 47.16%, and the light rare earth partitioning is totally 93.25%. Y and Eu are enriched in the middle yttriumand rich europium ore. Its middle rare earth partitioning is totally over 10%, and Eu2O3 and Y2O3 are over 0.5% and 20%,respectively, which are mainly industrial resources of the middle and the heavy rare earths. | CHI Ru 'an LI Zhongjun PENG Cui ZHU Guocai XU Shengming | 2005 | Rare Metals2005，24，3： | 8 |
| 5 | RARE EARTH PARTITIONING OF GRANITOID WEATHERING CRUST IN SOUTHERN CHINA显示文摘INTRODUCTIONTheweatheringcrustofSouthernChinaisaloosepolymineralaggregate,whichismainlycomposedofclaymineralsofkaolinite,hal... | Chi Ruan and Zhu Guocai Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, P. R. China | 1998 | 中国有色金属学会会刊:英文版1998，8，4： | 7 |
| 6 | Comparisons of dosimetric properties between GD-300 series of radiophotoluminescent glass detectors and GR-200 series of thermoluminescent detectors显示文摘In order to compare the dosimetric properties of two kinds of solid state detectors used for monitoring ex- ternal exposures,experiments were performed for the GD-300 series of radiophotoluminescent glass detectors (RPLGD)and the GR-200 series of thermoluminescent detectors(TLD).X-rays and ^(137)Cs and ^(60)Coγ-rays were used to irradiate the RPLGDs and TLDs,their dose linearity,uniformity/reproducibility of signal,fading effect and energy dependence were compared.Both kinds of the detectors have generally good dosimetric properties.The dose linearity and energy dependence of the GD-351 dosimeters and the TLDs are nearly the same,but the RPLGD is much better than the TLD in terms of the uniformity and fading effect. | ZHUO Weihai LIU Weiqi HUANG Gang ZHU Guoying MA Guocai | 2007 | Nuclear Science and Techniques2007，18，6： | 6 |
| 7 | ELECTROCHEMICAL STUDIES ON THE MECHANISM OF GOLD DISSOLUTION IN THIOSULFATE SOLUTIONS显示文摘ELECTROCHEMICALSTUDIESONTHEMECHANISMOFGOLDDISSOLUTIONINTHIOSULFATESOLUTIONSZhu,Guocai;Fang,Zhaoheng;Chen,Jiayong(InStduteofCh... | Zhu, Guocai Fang, Zhaoheng Chen,Jiayong(InStdute of Chrmicof Meuulargy,Lvhinere Acadeiny of Sciences,Beijing100080, China) | 1994 | 中国有色金属学会会刊:英文版1994，4，1： | 3 |
| 8 | Reduction of Low-grade Manganese Dioxide Ore Pellets by Biomass Wheat Stalk显示文摘An investigation on reducing low-grade manganese dioxide ore pellets was carried out by using wheat stalk as reductant. The main impact factors of reduction percent such as particle size, biomass/ore ratio, heating rate, nitrogen flow rate, temperature and time in reduction process were discussed. The morphology and component of manganese dioxide ore particle at different stages were also analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The results show the increase of the reduction temperature and time, biomass/ore ratio, and the decrease of particle size, heating rate and nitrogen flow rate can significantly enhance reduction efficiency. The reduction kinetic of the manganese ore is controlled by three-dimensional mass diffusion of gaseous reductive volatiles passing from the surface to the core of the ore particles. The activation energy E and frequency factor A were calculated to be 24.15 kJ · mol-1 and 166 min-1 , respectively. Biomass pyrolysis volatiles adsorbed onto the surface of the ore particle leads to serious variation of the microstructures and chemical composition of the manganese ore particles. | Honglei ZHANG Guocai ZHU Hong YAN Yuna ZHAO Tiancheng LI Xiujuan FENG | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，2： | 3 |
| 9 | Kinetics of recovering germanium from lignite ash with chlorinating roasting methods显示文摘由使氯化烤恢复 Ge 的一个过程被提出。因为它的低沸腾点, GeCl4 与褐煤灰被分开并且恢复。运动分析显示使氯化烤过程与缩小模型的 unreacted 核心适合,反应率方程对应于 1 吗?2a/3?( 1?一) 2/3 = kt。明显的激活精力 Ea 被计算是在 pH = 的媒介的 22.36 kJ D301R 树脂 3.47。静态地浸透的吸附能力是 410 mg/g。在 D301R 树脂上吸附的磅(IV ) 能是由 1.0-2.0 mol/L NaOH 的 eluted。率常数是 k298 = 5. | ZHU Guocai WANG Jingyan CHENG Zhuo ZHAO Yuna | 2008 | Rare Metals2008，27，3： | 3 |
| 10 | An investigation on stability of biomass reduced manganese dioxide ore显示文摘In this study,how to improve the stability of reduced manganese oxide ore was discussed by investigating reoxidation conditions and kinetics mechanism in the cooling process of manganese dioxide ore reduced by biomass.The effects of the temperature and time,chip size of biomass,raw materials thickness and different additives on stability of the products were determined.The valence variation of manganese in ore and the reoxidation kinetics of reduced products were studied.The results show that decrease of reduction temperature and time,and increase of raw materials thickness and little H2SO4 additive are favorable for the stability of the reduced products.The kinetics mechanism of the reoxidation is controlled by diffusion with dynamic apparent activation energy of E1=25.10 kJ·mol-1,and conformation of manganese in the process is changed from MnO to Mn3O4. | Honglei ZHANG Guocai ZHU Hong YAN Yuna ZHAO Fangpu CHEN Wenjuan WANG | 2012 | Acta Metallurgica Sinica(English Letters)2012，25，6： | 2 |
| 11 | Thermogravimet-ric Analysis and Kinetics on Reducing Low-Grade Man-ganese Dioxide Ore by Biomass 显示文摘 | ZhangHonglei Zhu Guocai Yan Hong | 2013 | Metallurgical andMaterials Transactions B2013，44，4： | 1 |
| 12 | Thermal decomposition kinetics and mechanism of magnesium bicarbonate aqueous solution显示文摘 | Yuna Zhao Guocai Zhu | 2007 | Hydrometallurgy2007，，3： | 1 |
| 13 | The mechanism of chlorinating light rare earth (La,Ce) by ammonium chloride 显示文摘 | Chi Ruan Xu Shengming | 2002 | Mineral Engineering2002，56，3： | 1 |
| 14 | Study in reduction roast leaching manganese from low - grade manganese dioxide ores using cornstalk as reductant 显示文摘 | Cheng Zhuo Zhu Guocai Zhao Yuna | 2009 | Hydrometallurgy2009，96，2： | 1 |
| 15 | Recovery of RE From Baotou Rare Earth Concentrate With Chlorination Roasting显示文摘 | Shi Wenzhong Zhu Guocai Hu Jie | 2003 | Transactions of Nonferrous Metals Society of China2003，13，43： | 1 |
| 16 | High thermoelectric performance at room temperature of n-type Mg_(3)Bi_(2)-based materials by Se doping显示文摘Bi_(2)Te_(3) based alloys have been the most widely used thermoelectric material at low temperature for many decades.Here we report Se doped n-type Mg_(3)Bi_(2) based materials with a thermoelectric figure-of-merit ZT of 0.82 at 300 K and a peak ZT of 1.24 at 498 K,which is comparable to the n-type Bi_(2)Te_(3) and Te doped Mg_(3)Bi_(1.4)Sb_(0.6).The improved thermoelectric performance is benefited from the high carrier concentration and mobility as well as the thermal conductivity reduction.The reduced resistivity increased the power factor at all measured temperatures,leading to a higher engineering ZT(ZTeng)and engineering power factor(PFeng)for n-type Mg_(3)Bi_(2).The n-type Mg_(3)Bi_(1.4)Sb_(0.6) materials are promising for thermoelectric power generation and cooling applications near room temperature. | Xiaobo Mo Jiansong Liao Guocai Yuan Sha Zhu Xiaobo Lei Lihong Huang Qinyong Zhang Chao Wang Zhifeng Ren | 2022 | Journal of Magnesium and Alloys2022，10，4： | 1 |
| 17 | Study in reduction-roast leaching manganese from low-grade:anganese dioxide ores using cornstalk as reductant 显示文摘 | Zhuo Cheng Guocai Zhu Yuna Zhao | 2009 | Hydrometallurgy2009，9602，： | 1 |
| 18 | Study in reduction-roast leaching manganese from low-grade manganese dioxide ores using cornstalk as reductant显示文摘 | Zhuo Cheng Guocai Zhu Yuna Zhao | 2008 | Hydrometallurgy2008，，1： | 1 |
| 19 | A study of recovery of copper and cobalt from copper-cobalt oxide ores by ammonium salt roasting显示文摘 | Zhang Mingzhu Zhu Guocai Zhao Yuna | 2013 | Hydrometallurgy2013，，： | 1 |
| 20 | Finding finer functions for partially characterized proteins by protein-protein interaction networks显示文摘Based on high-throughput data, numerous algorithms have been designed to find functions of novel proteins. However, the effectiveness of such algorithms is currently limited by some fundamental factors, including (1) the low a-priori probability of novel proteins participating in a detailed function; (2) the huge false data present in high-throughput datasets; (3) the incomplete data coverage of functional classes; (4) the abundant but heterogeneous negative samples for training the algorithms; and (5) the lack of detailed functional knowledge for training algorithms. Here, for partially characterized proteins, we suggest an approach to finding their finer functions based on protein interaction sub-networks or gene expression patterns, defined in function-specific subspaces. The proposed approach can lessen the above-mentioned problems by properly defining the prediction range and functionally filtering the noisy data, and thus can efficiently find proteins’ novel functions. For thousands of yeast and human proteins partially characterized, it is able to reliably find their finer functions (e.g., the translational functions) with more than 90% precision. The predicted finer functions are highly valuable both for guiding the follow-up wet-lab validation and for providing the necessary data for training algorithms to learn other proteins. | LI YanHui GUO Zheng MA WenCai YANG Da WANG Dong ZHANG Min ZHU ding ZHONG GuoCai LI YongJin YAO Chen WANG Jing | 2007 | Chinese Science Bulletin2007，52，24： | 0 |
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