欢迎登录材料期刊网

材料期刊网

高级检索

根据配位化学的热力学平衡原理,绘制Co2+-H2O体系的羟基配合离子的浓度pc-pH图、配离子分率αn-pH图(lgαn-pH图)和Co(OH)2的条件溶度积pPs-pH图.pc-pH图描述Co(OH)2(s)溶解平衡时钴的总离子平衡浓度与pH值的关系.当pH值为10~13时,Co(OH)2(s)的溶解度最小;αn-pH图指出各种羟基配离子分率与pH值的关系,在不同pH值条件下,钴离子形成不同种类的羟基配离子;溶液中主要存在Co(OH)+、Co(OH)3-、Co(OH)42-、Co4(OH)44+这4种羟基配离子以及少量Co(OH)2和Co2(OH)3+.pPs-pH图显示了Co(OH)2(s)的条件溶度积与对应pH值之间的关系:当pH值为9~11时,Co(OH)2(s)的条件溶度积最小.

参考文献

[1] 赵声贵,陈元初.世界及中国钴资源供需情况[J].矿冶工程,2012(z1):153-156.
[2] 乐颂光.钴冶金[M].北京:冶金工业出版社,1987:2-5.LE Song-guang.Metallurgy of cobalt[M].Beijing:Metallurgical Industrial Press,1987:2-5.,1987.
[3] 胡亦群,宁慧青.人体必需微量元素过量对健康的影响[J].太原科技,2008(05):35-36.
[4] 谢福标.含钴废料回收工艺述评[J].矿冶,2003(01):63-66,59.
[5] 童雄,张艮林,闫森.综合回收有色金属物料中伴生钴的研究概况[J].云南冶金,2001(06):12-17,60.
[6] TIAN Qing-hua,XIN Yun-tao,JIAO Cui-yan,GUO Xue-yi.Recovery of cobalt from cobalt chloride solution under the action of ozone[J].Advanced Materials Research,2012(460):317-320.,2012.
[7] 田庆华,辛云涛,姚标,郭学益.锌湿法冶金过程中臭氧氧化沉淀除去微量钴[J].中国有色金属学报,2013(04):1140-1144.
[8] MONIER M,ABDEL-LATIF D A .Modification and characterization of PET fibers for fast removal of Hg(Ⅱ),Cu(Ⅱ) and Co(Ⅱ) metal ions from aqueous solutions[J].Journal of Hazardous Materials,2013,250
[9] SADIN O,ERSIN K,ANNARITA P .Biosorption of heavy metals (Cd2+,Cu2+,Co2+,and Mn2+) by thermophilic bacteria,geobacillus thermantarcticus and anoxybacillus amylolyticus:equilibrium and kinetic studies[J].Bioremediation Journal,2013,17(2):86-96.,2013.
[10] 钟竹前,梅光贵,贺青蒲,张训鹏.废水中和水解净化的理论分析[J].有色冶炼,1981(3):34-42.ZHONG Zhu-qian,MEI Guang-gui,HE Qing-pu,ZHANG Xun-peng.Theoretical analysis of purification of wastewater by hydrolysis[J].Nonferrous Metallurgy,1981(3):34-42.,1981.
[11] 柴立元,常皓,王云燕,舒余德,李敬,袁林,王璞,方艳,赵堃.Cd2+-H2O系羟合配离子配位平衡[J].中国有色金属学报,2007(03):487-491.
[12] 张祥麟,康衡.配位化学[M].长沙:中南工业大学出版社,1986.ZHANG Xiang-lin,KANG Heng.Coordination chemistry[M].Changsha:Central South University of Technology Press,1986.,1986.
[13] STUMM W,MORGAN J J.Aquatic chemistry-an introduction emphasizing chemical equilibria in natural waters[M].TANG Hong-xiao,tranls.Beijing:Science Press,1987.,1987.
[14] STUMM W,MORGAN J J.水化学天然水体化学平衡导论[M].汤鸿霄,译.北京:科学出版社,1987.,1987.
[15] MARTELL A E,SMITH R M.Critical stability constants[M].New York and London:Plenum Press,1975:393.,1975.
[16] 陈绍炎.水化学[M].北京:水利电力出版社,1989.CHEN Shao-yan.Aquatic chemistry[M].Beijing:Irrigation and Electrics Press,1989.,1989.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%