共搜索到13871条信息，每页显示10条信息，共1388页。用时：0小时0分0秒515毫秒
]. Electrochimica Acta, 2016, 210: 925-934. [7] MIN X B, ZHOU M, CHAI L Y, WANG Y Y, SHU Y D. Treatment of nickel-ammonia complex ion-containing ammonia nitrogen wastewater [J]. Transactions...+ and , and it further confirmed the dissociation of copper ammonia complex under pH 9.0. The addition of Mg2+ and enhanced the dissociation of ammonia ion from the complex in the solution, and it was captured......
......
synthesized sterically hindered β-diketone was applied to reduce the ammonia extraction in the loaded organic phase. The effects of the concentration of copper ion, the total ammonia concentration... Solvent extraction of copper and ammonia from ammoniacal solutions using sterically hindered β-diketone HU Hui-ping(胡慧萍), LIU Chun-xuan(刘春轩), HAN Xue-tao(韩雪涛), LIANG Qi-wen(梁啟文), CHEN Qi-yuan(陈启元......
......
from these earlier studies that the chemistry of ammoniacal cyanide leaching is rather complex with intimate interactions among the species of ammonia, copper and cyanide. The presence of copper...Trans. Nonferrous Met. Soc. China 25(2015) 597-607 Treatment of copper-rich gold ore by cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching A. D. BAS, E. KOC, Y. E. YAZICI, H......
, Perkin Elmer). 2.2.2 Nickel analysis To 5 mL of the nickel ion solution, 25 mL of water was added followed by 3 to 4 drops of freshly prepared murexide indicator. Ammonia solution was added until the pH...Trans. Nonferrous Met. Soc. China 23(2013) 2977-2983 Synthesis and characterization of fibrous nickel hydroxide obtained from spent nickel catalyst Pinak PATNAIK1,2, Avijit BISWAL1,2, Bankim Chandra......
, the nickel sulfate solution was added with a given flow rate to the reducing agent solution under agitating condition (the stirring rate 300 r/min). After nickel ion was completely reduced... there is no nucleator in the NiSO4 solution, the reduction of nickel ion is quite slow and only a few black particles are deposited on the wall of the reactor in the initial stage of reaction. After nucleator......
. In order to recover nickel effectively, leaching solution must be treated by iron removal. Aqueous iron exists in form of ferric ion (Fe3+) in the solution, so, atmospheric natrojarosite method... is 2.5, however, iron hydroxide (Fe(OH)3) is found in it. Iron hydroxide colloid entrains metal ions, which leads to loss of nickel ion and filtration difficulty. When the pH values are 1.5, 2.0 and 2.5......
Ceria supported nickel catalysts for CO removal from H2-rich gas高志明1,代倩子1,马宏伟1,李展平21. School of Chemistry, Beijing Institute of Technology2. Analysis Center, Tsinghua University摘 要:CO in H2-rich gas must be removed to meet various requirements in industrial applications. Four methods, i.e., the precipitation method using aqueous ammonia, the complexing......
Ceria supported nickel catalysts for CO removal from H2-rich gas高志明1,代倩子1,马宏伟1,李展平21. School of Chemistry, Beijing Institute of Technology2. Analysis Center, Tsinghua University摘 要:CO in H2-rich gas must be removed to meet various requirements in industrial applications. Four methods, i.e., the precipitation method using aqueous ammonia, the complexing......
