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Corrosion protection properties of vanadium films formed on zinc surfacesZOU Zhongli,LI Ning,and LI Deyu Department of Applied Chemistry,School of Chemical Engineering & Technology,Harbin Institute of Technology,Harbin 150001,China摘 要:Vanadium films were prepared on zinc surfaces by using a solution containing vanadate.Corrosion protection......
and HDPBr has a stronger inhibition on the electric dissolution and crystallization than the additive of gelatin and thiourea. HDPBr is a quaternary ammonium salt with a large organic cation, which can..., the cyclic voltammetrical behavior shown in Fig.4 is not obviously different from that without CTABr, as shown in Fig.3. CTABr as a cation surfactant of a quaternary ammonium salt has a stronger......
Na2CO3的钒氧化率持续降低；添加Na2SO4的钒氧化率降低程度逐步趋于平缓；而添加NaCl时,钒氧化率先降后升.在钠盐添加量为矿石的2%~6%的范围内,3种焙烧产物中五价钒的含量最为接近. 图3 单盐含量对钒氧化率的影响 Fig. 3 Influence of single salt content on vanadium oxidation rate 2.1.2 ...,则另两种盐配比的灵活性增加,焙烧产物钒氧化率最大值增加. 表4 复合钠盐混合比例及焙烧产物中钒氧化率的测定值及加权值 Table 4 Mixing ratio of composite sodium salt and measured and weighted value of vanadium oxidation rate in roasted slag 图4......
the cyclic voltammogram of the TPGF electrode in the acidic vanadium sulphuric solution in the potential range from -1.0 to 1.5 V. The anodic peak (A) at approximately 1.5 V is due to the oxidation... that the treated electrode materials performance good activity and complete reversibility in the acidic vanadium solution. It can be concluded that the PGF electrode after sulphuric acid dipping......
oriented while the films deposited at higher oxygen partial pressure were single phase (ZnO) and highly oriented along the c-axis. In the homogeneous precipitation, precipitators decomposed into acidic...J. Cent. South Univ. (2012) 19: 863-868 DOI: 10.1007/s11771-012-1084-4 Large scale synthesis of ZnO nanoparticles via homogeneous precipitation WANG Yi-ming(王益明)1, LI Jian-hua(李建华)2, HONG Ruo-yu(洪若瑜......
; 文献标志码:A Dissolution behavior of vanadium slag in KOH sub-molten salt LIU Hui-bin1, 2, 3, DU Hao1, LIU Biao1, 2, WANG.... China Enfi Engineering Corporation, Beijing 100038, China) Abstract:The dissolution behavior of vanadium slag was studied by decomposing the slag in KOH sub-molten salt. The effects of reaction......
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Solvent extraction of molybdenum from acidic leach solution of Ni–Mo oreMing-Yu Wang,Xue-Wen Wang,Chang-Jun Jiang,Chao-Fan TaoSchool of Metallurgical Science and Engineering, Central South University摘 要:A P204(D2EHPA) diluted with sulfonated kerosene was used for the selective extraction of molybdenum from an acidic Ni–Mo ore leach solution......
Influence of thinning on acidic deposition in Chinese fir plantationsLIU Si-mian(柳思勉)1, 2, TIAN Da-lun(田大伦)3, 4, XIANG Wen-hua(项文化)3, 4, YAN Wen-de(闫文德)4, LIU Yun-guo(刘云国)1, 2, HU Xin-jiang(胡新将)1, 2... University of Forestry and Technology, Changsha 410004, China)Abstract:Acidic deposition, which is mainly caused by atmospheric pollution, is one of the global environmental problems. Thinning is an effective......
亚硝基R盐-溴化十六烷基三甲基铵-水体系浮选分离钴Ⅱ的研究涂常青1,温欣荣1(1.广东省梅州市嘉应学院化学与环境学院)摘 要:研究了亚硝基R盐-溴化十六烷基三甲基铵-水体系浮选分离钴Ⅱ的行为,探讨了亚硝基R盐(NRS)及溴化十六烷基三甲基铵(CTMAB)用量,pH等因素对Co2+浮选率的影响,得到了浮选分离钴Ⅱ的最佳条件,讨论了Co2+被浮选的机理.结果表明:控制pH值为3.0,当0.01 mol/L NRS溶液和0.01 mol/L CTMAB溶液的用量均为1.00 mL时,Co2+与NRS,溴化十六烷基三甲......
