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:KBF_4为5:1,温度750℃,阴极电流密度1.5 A·cm~(-2),电解时间3 h.该条件下能得到纯度95%以上的球形非晶态硼粉,电流效率可达到80%以上.KCl-KBF_4-B_2O_3体系熔盐电解得到超细球形硼粉,但电流效率低,产品难以收集,杂质含量较高. 关键词:熔盐电解; 硼粉; KCl-KBF_4体系; KCl-KBF_4-B_2O_3体系; molten salt electrolysis; boron powder; KCl-KBF_4 system; KCl-KBF_4B_2O_3system; [全文内容正在添加中] ......
Slurry electrolysis of ocean polymetallic nodule WANG Cheng-yan(王成彦), QIU Ding-fan(邱定蕃), YIN Fei(尹 飞), WANG Han-yuan(王含渊), CHEN Yong-qiang(陈永强) Beijing General Research Institute...: The ocean poly-metallic nodule was leached by using slurry electrolysis process in HCl-NaCl medium. The leaching rates of Mn, Co, Cu and Ni in the ocean poly-metallic nodule are all above 97......
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are high energy consumption and a long flow, a new process was proposed to smelt antimony directly from stibnite by reducing and sulfur-fixing reaction in NaCl-Na2CO3 molten salt. The reaction mechanism... words: antimony metallurgy; molten salt smelting; sulfur-fixing mechanism; ferric oxide slag Foundation item: Project(51104182) supported by the National Natural Science Foundation of China Received date......
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and aluminum are completely removed during electrolysis. Key words: titanium alloy; Ti-bearing blast furnace slag; molten salt electrolysis; solid oxygen-ion membrane process ... h were used as the cathode, and the carbon-saturated liquid copper loaded in zirconia tube was used as the anode, which were electrolyzed in a molten CaCl2 at 1 100 ℃ with a potential of 3.5-4.0 V......
master alloy was added. In order to completely dissolve Nd, the molten samples were held at 680 °C for about 30 min and then poured into a mold at 700 °C. The chemical components of the specimens were...长孪晶.力学性能测试结果表明:添加Nd元素后,Al-12Si合金的力学性能得到改善,当合金中Nd元素含量达到0.3%时,合金的力学性能达到最优,抗拉强度(UTS)为252 MPa,伸长率(EL)为13%.合金力学性能的改善主要归因于合金中Si相形貌的改善和细小Al2Nd相颗粒的形成. 关键词:AL-12Si合金；钕；细化；生长孪晶；力学性能 (Edited by Mu-lan QIN......
temperature increased. These phenomena could weaken the contact between reaction ions and electrons and also had the same effect on the cathodes and the molten salt. Moreover, they were disadvantageous to ion...Effect of sintering temperature on the electrolysis of TiO2Ze-quan Li 1,2) , Li-yue Ru 1) , Cheng-guang Bai 2) , Na Zhang 1) , and Hai-hua Wang 1) 1) College of Chemistry and Chemical Engineering......
were determined by X-ray powder diffraction. SEM analysis indicated that intermingling of molten salt in crystal caused by electrolysis with direct current was avoided using electrolysis with reverse...CRYSTALLIZATION OF SODIUM TUNGSTEN BRONZE USING ELECTROLYSIS WITHREVERSE CURRENT＋Huang Huan1; Yang Songqing1; Tang Shu2(1. Institute of Metallurgical Physicochemistry and Materials, Central South......
and with low levels of impurities, i.e., less than 60×10-6 sulfur, via DER at 2.5 V for 15 min. Key words: molten salt electrolysis; electro-reduction; copper extraction; copper sulfide; nickel sulfide... with their specifications. The schematic depiction of the experimental setup utilized for the molten salt electrolysis is shown in Fig. 1. Table 1 Materials used in cyclic voltammetry measurements......
