Aqueous Recovery of Zinc and Lead from Coal Fly Ashes of a Colombian Thermoelectric Plant

被引：3
|
作者：
Borda, Johana [1 ]
Gonzalez, Claudia [2 ]
Torres, Robinson [3 ]
机构：
[1] Univ Pedag & Tecnol Colombia, Fac Ingn, Escuela Ingn Met, Met & Ciencia Mat, Tunja, Colombia
[2] Univ Pedag & Tecnol Colombia, Fac Ingn, Escuela Ingn Met, Ingn Met, Tunja, Colombia
[3] Univ Pedag & Tecnol Colombia, Fac Ingn, Escuela Ingn Met, Tunja, Colombia
来源：
INGENIERIA E INVESTIGACION | 2023年 / 43卷 / 01期
关键词：
fly ash; leaching; HNO3; sodium citrate; zinc; lead; POWER-PLANTS; MANAGEMENT; MECHANISM; EXPANSION; RESIDUES; ELEMENTS; ZEOLITE; FUSION;
D O I：
10.15446/ing.investig.95364
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A hydrometallurgical treatment under ambient conditions was proposed in order to eliminate and recover the lead and zinc contained in a sample of thermal coal fly ash used to produce energy. By using leaching solutions with conventional inorganic acids (HCl, HNO3, and H2SO4), ferric chloride, and sodium citrate, more than 90% zinc and approximately 40% lead were obtained. The most favorable leaching conditions were set at 0,5 M, with a pH value of 8 for citrate. Two leaching stages were necessary to optimize metal recovery: the first with nitric acid for zinc extraction and the second one with citrate for the lead. The sulfur phases of the metals limited a complete metal extraction.
引用
收藏
页数：8
相关论文
共 50 条
  • [21] Acid leaching technique for the possible recovery of aluminium and other metal values from coal fly ashes
    Sangita, Seoul
    Panda, Chitta R.
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 2016, 93 (05) : 481 - 487
  • [22] Synchrotron-aided exploration of REE recovery from coal fly ashes within a Canadian context
    Wu, Yuwei
    Huang, Guohe
    Zhang, Peng
    Yao, Yao
    Zhao, Kai
    Shen, Jian
    Feng, Renfei
    Chen, Ning
    Chemosphere, 2024, 367
  • [23] Chlorination behavior of zinc and lead from molten fly ashes: Effects of metal forms and coexisting elements
    Nonaka, R
    Sugawara, K
    Sugawara, T
    Enda, Y
    KAGAKU KOGAKU RONBUNSHU, 2005, 31 (04) : 278 - 284
  • [24] Detoxification of fly ashes from RDF incineration plant
    USL RM/A, Rome, Italy
    The Journal of resource management and technology, 1996, 23 (04): : 213 - 218
  • [25] RADIOACTIVITY OF FLY ASHES FROM COAL POWER-PLANTS
    PAPASTEFANOU, C
    STCHARALAMBOUS
    ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1979, 34 (05): : 533 - 537
  • [26] Reactivation of alkali-activated materials made up of fly ashes from a coal power plant
    Criado, M.
    Vicent, M.
    Garcia-Ten, F. J.
    CLEANER MATERIALS, 2022, 3
  • [27] GEOCHEMICAL CHARACTERIZATION AND MERCURY CONTENT OF FEED COALS AND FLY ASHES FROM RUSSE THERMOELECTRIC POWER PLANT, BULGARIA
    Kostova, Irena
    COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES, 2017, 70 (06): : 829 - 838
  • [28] Fly ashes generated from coal-fired thermoelectric power plants on the Balkan Peninsula - Organic geochemical study
    Kostova, Irena
    Apostolova, Denitsa
    Bechtel, Achim
    Gross, Doris
    Stefanova, Maya
    INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2023, 276
  • [29] Prevention of lead leaching from fly ashes by mechanochemical treatment
    Nomura, Y.
    Fujiwara, K.
    Terada, A.
    Nakai, S.
    Hosomi, M.
    WASTE MANAGEMENT, 2010, 30 (07) : 1290 - 1295
  • [30] REMOVAL OF METHYLENE BLUE FROM AQUEOUS SOLUTION USING ZEOLITE SYNTHESIZED FROM DIFFERENT COAL FLY ASHES SAMPLES
    Fungaro, Denise Alves
    Bruno, Mariza
    QUIMICA NOVA, 2009, 32 (04): : 955 - U149
12345