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    Wyświetlanie 1-7 z 7
    Tytuł:
    Improvement of metal separation process from synthetic hydrochloric acid leaching solution of spent lithium ion batteries by solvent extraction and ion exchange
    Autorzy:
    Nguyen, Viet Nhan Hoa
    Lee, Man Seung
    Powiązania:
    https://bibliotekanauki.pl/articles/1446393.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    spent lithium-ion batteries
    solvent extraction
    ion exchange
    separation
    Opis:
    Spent lithium-ion batteries (LIBs) are good secondary resources for recycle and reuse. To develop a process for the separation of Cu(II), Co(II), Mn(II), Ni(II) and Li(I) with high purity from spent LIBs and circumvent some drawbacks of the previous work, solvent extraction and ion exchange experiments were done in this work. The synthetic hydrochloric acid leaching solution of 3 M was employed. Compared to Aliquat 336 (N-Methyl- N, N, N-trioctyl ammonium chloride), extraction with Cyanex 301 (bis(2,4,4-trimethylpentyl) dithiophosphinic acid) led to selective extraction of Cu(II) over other metal ions. Employing ion exchange with TEVA-SCN resin can completely separate Co(II) over Mn(II). After adjusting the pH of Co(II) free raffinate to 3, Mn(II) was quantitatively extracted by the mixture of Alamine 336 (mixture of tri-octyl/decyl amine) and PC 88A (2-ethylhexyl hydrogen-2-ethylhexylphosphonate) with two stage cross-current extraction. The synthesized ionic liquid (ALi-CY) was used for complete extraction of Ni(II), whereas Li(I) remained in final raffinate. The metal ions in the loaded organic phase were completely stripped with the proper agents (5% aqua regia for Cu(II), 5% $NH_3$ for Co(II), weak $H_2SO_4$ solution for Mn(II) and Ni(II) stripping, respectively). The experimental results revealed that purity of the metal ions in stripping solution was higher than 99.9%. A flowsheet was suggested to separate metal ions from the HCl leaching solutions of spent LIBs.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2021, 57, 4; 1-17
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Separation of Co(II), Cu(II), Ni(II) and Mn(II) from synthetic hydrochloric acid leaching solution of spent lithium ion batteries by solvent extraction
    Autorzy:
    Nguyen, Viet Nhan Hoa
    Lee, Man Seung
    Powiązania:
    https://bibliotekanauki.pl/articles/1449331.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    spent lithium-ion batteries
    divalent metal ions
    solvent extraction
    separation
    Opis:
    Spent lithium ion batteries contain valuable critical metals such as cobalt, copper, lithium and nickel. In order to develop a process for the separation of the divalent metal ions from spent lithium ion batteries, solvent extraction experiments were performed by employing synthetic hydrochloric acid leaching solution. The synthetic solution contained Cu(II), Co(II), Mn(II) and Ni(II) and its acidity was 3 M HCl. Extraction with Aliquat 336 led to selective extraction of Cu(II) with a small amount of Co(II). After adding NaCl to the Cu(II) free raffinate to enhance the complex formation of Co(II), Co(II) was selectively extracted into Aliquat 336 together with Mn(II). The small amount of Mn(II) in the loaded Aliquat 336 was scrubbed by pure Co(II) solution. After adjusting the pH of the raffinate to 3, 91,3% of Mn(II) was selectively extracted over Ni(II) by the mixture of D2EHPA and Alamine 336. In this extraction, the mole fraction of D2EHPA in the mixture affected the extraction of Mn(II). McCabe-Thiele diagrams for the extraction of Cu(II) and Co(II) were constructed. Batch simulation experiments for the three stage counter-current extraction verified the selective extraction of the target metal ions in each extraction step. Namely, the total extraction percentage of Cu(II) and Co(II) was 71.6% and 98.8% respectively. Most metals in the loaded organic phase were stripped completely with the appropriate agents (1.0 M $H_2SO_4$ for Cu(II), 0.1 M H2SO4 for Co(II) and 0.3 M $HCl$ for Mn(II) stripping). A process was proposed to separate the metal ions by solvent extraction.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2020, 56, 4; 599-610
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improvement of leaching efficiency of cathode material of spent $LiNi_xCo_yMn_zO_2$ lithium-ion battery by the in-situ thermal reduction
    Autorzy:
    Lu, Qichang
    Jiang, Haidi
    Xie, Weining
    Zhang, Guangwen
    He, Yaqun
    Duan, Chenlong
    Zhang, Jing
    Yu, Zhaoyi
    Powiązania:
    https://bibliotekanauki.pl/articles/1447956.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    spent lithium-ion batteries
    in-situ thermal reduction
    leaching efficiency
    LiNixCoyMnzO
    Opis:
    Green cars and electronic products consume lots of lithium-ion batteries (LIBs), and massive spent LIBs are yielded due to performance degradation. This paper provides an economical and environmentally friendly approach to recover valuable metals from cathode materials of the spent LIBs. It combines the in-situ thermal reduction (self-reduction by polyvinylidene fluoride (PVDF) and residual electrolyte in cathode material) and sulfuric acid leaching. Elements of high valent are reduced by the binder (PVDF) and the residual electrolyte on the surface of $NCM(LiNi_xCo_yMn_{1-x-y}O_2)$ material at high temperatures. Moreover, the changes in substance type, element valency, and contents of cathode materials reduced with various terminal temperatures and retention time are analyzed by Xray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Results show that the optimal terminal temperature for in-situ thermal reduction is 600 °C, and the optimum retention time is 120 min. Under the best in-situ thermal reduction conditions, the results from XRD confirm that part of $Ni^{2+}$ is converted to simple substance $Ni$, $Co^{3+}$ is reduced to $Co$, and $Mn^{4+}$ is reduced to $Mn^{2+}$ and elemental $Mn$, which are confirmed by XRD. Analyzed results by XPS indicate that the content of $Ni^{2+}$ decreases to 67.05%, and $Co^{3+}$ is completely reduced to $Co$. $Mn^{4+}$ is reduced to 91.41% of $Mn^{2+}$ and 8.59% of simple substance $Mn$. In-situ thermal reduction benefits the leaching processes of cathode materials. The leaching efficiencies of $Ni$, $Co$, and $Mn$ increase from 53.39%, 51.95%, and 0.71% to 99.04%, 96.98%, and 97.52%, respectively.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2021, 57, 2; 70-82
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Odzysk niklu, kadmu i kobaltu ze zużytych baterii
    Nickel, cadmium and cobalt recovery from spent batteries
    Autorzy:
    Kończyk, J.
    Sobianowska-Turek, A.
    Sobianowska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/103498.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane
    Tematy:
    zużyte baterie
    kwaśne ługowanie
    ekstrakcja rozpuszczalnikowa
    nikiel
    kadm
    kobalt
    rezorcyn[4]aren
    spent batteries
    acid leaching
    solvent extraction
    nickel
    cadmium
    cobalt
    resorcin[4]arene
    Opis:
    W pracy zaproponowano czteroetapowy proces odzysku niklu, kadmu i kobaltu ze zużytych baterii niklowo-kadmowych (Ni-Cd) oraz niklowo-wodorkowych (Ni-MH) obejmujący obróbkę mechaniczną, kwaśne ługowanie odpowiednio przygotowanych odpadów bateryjnych, ekstrakcję rozpuszczalnikową badanych metali przy użyciu tetratiofosforylowanego rezorcyn[4]arenu oraz reekstrakcję metali do fazy wodnej. Ponadto, w celu optymalizacji procesu, określono wpływ wybranych parametrów, takich jak: temperatura początkowa i czas prowadzenia ługowania, rodzaj kwasu mineralnego oraz pH fazy wodnej i stężenie ekstrahenta na wydajność i selektywność odzysku badanych metali.
    Presented work describes four-step recovery process of nickel, cadmium and cobalt from Ni-Cd and Ni-MH batteries. The process consists of mechanical treatment, acid leaching, solvent extraction with the use of tetratiophosphorylated resorcin[4]arene and reextraction of the metal ions to aqueous phase. Additionally, in order to optimize the process, effect of some parameters, such as temperature and duration time of the leaching, the type of mineral acid, pH of aqueous phase and extractant concentration on efficiency and selectivity of metal recovery was determined.
    Źródło:
    Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa; 2016, T. 4; 233-246
    2300-5343
    Pojawia się w:
    Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pre-concentration of graphite and LiCoO2 in spent lithium-ion batteries using enhanced gravity concentrator
    Autorzy:
    Zhu, X,-N.
    Tao, Y.-J.
    He, Y.-Q.
    Zhang, Y.
    Sun, Q.-X.
    Powiązania:
    https://bibliotekanauki.pl/articles/109609.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    spent lithium-ion batteries
    electrode material
    resource utilization
    pre-concentration
    enhanced gravity concentrator
    Opis:
    The pre-concentration of electrode material of spent lithium-ion battery has great significance on the resource utilization and environmental protection. The feasibility of separation of graphite and LiCoO2 based on density difference using the enhanced gravity concentrator was verified in this paper. Combustion characteristics of LiCoO2 and graphite were used to propose a simple evaluation index of separation efficiency. Separation tests were carried out to specify the influence of operating parameters on the separation efficiency. Moreover, the effect of particle size on the separation performance was studied. Combustion characteristics results showed that mass loss of graphite was much greater than that of LiCoO2. Thus, mass loss were used to evaluate the purity of product. Effective separation of graphite and LiCoO2 was achieved by the enhanced centrifugal separator. Separation results showed that increasing centrifugal force decreased the overflow yield and increased the graphite content of the overflow stream. In addition, yield of overflow grew an increase in fluidization water pressure, while the purity of graphite in overflow decreased. The effect of particle size on the separation efficiency was also significant, the separation efficiency decreased with the decreasing of particle size.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2018, 54, 2; 293-299
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recovery Of Nickel From Spent Nickel-Cadmium Batteries Using A Direct Reduction Process
    Odzysk niklu z zużytych baterii niklowo-kadmowych za pomocą bezpośredniej redukcji
    Autorzy:
    Shin, D. J.
    Joo, S.-H.
    Wang, J.-P.
    Shin, S. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/355948.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    spent nickel-cadmium batteries
    direct reduction
    recycling
    heat treatment
    zużyte baterie niklowo-kadmowe
    redukcja bezpośrednia
    recykling
    obróbka cieplna
    Opis:
    Most nickel is produced as Ferro-Nickel through a smelting process from Ni-bearing ore. However, these days, there have been some problems in nickel production due to exhaustion and the low-grade of Ni-bearing ore. Moreover, the smelting process results in a large amount of wastewater, slag and environmental risk. Therefore, in this research, spent Ni-Cd batteries were used as a base material instead of Ni-bearing ore for the recovery of Fe-Ni alloy through a direct reduction process. Spent Ni-Cd batteries contain 24wt% Ni, 18.5wt% Cd, 12.1% C and 27.5wt% polymers such as KOH. For pre-treatment, Cd was vaporized at 1024K. In order to evaluate the reduction conditions of nickel oxide and iron oxide, pre-treated spent Ni-Cd batteries were experimented on under various temperatures, gas-atmospheres and crucible materials. By a series of process, alloys containing 75 wt% Ni and 20 wt% Fe were produced. From the results, the reduction mechanism of nickel oxide and iron oxide were investigated.
    Źródło:
    Archives of Metallurgy and Materials; 2015, 60, 2B; 1365-1370
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metal Bioleaching from Spent Lithium-Ion Batteries Using Acidophilic Bacterial Strains
    Bioługowanie metali z baterii litowo-jonowych za pomocą bakterii kwasolubnych
    Autorzy:
    Marcincakova, R.
    Kadukova, J.
    Mrazikova, A.
    Velgosova, O.
    Luptakova, A.
    Ubaldini, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/971115.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    bioługowanie
    zużyte baterie litowo-jonowe
    Acidithiobacillus ferrooxidans
    Acidithiobacillus thiooxidans
    odzysk Li i Co
    bioleaching
    spent lithium-ion batteries
    Li and Co recovery
    Opis:
    In this present work lithium and cobalt recovery from spent lithium-ion batteries (27.5% LiCoO2) by bioleaching was investigated. The experiments were carried out using the consortia of acidophilic bacteria of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans. For the Li and Co bioleaching two different media were used. A rich nutrient medium was consisted of all minerals needed for bacterial growths, whereas a low nutrient medium contained only sulphuric acid and elemental sulphur as an energy source. In the rich nutrient medium the overall lithium and cobalt bioleaching efficiency was 80% and 67%, respectively, whereas in the low nutrient environment only 35% Li and 10.5% Co were released. The experimental results revealed that the presence of nutrients in the bioleaching medium influenced, to a large extent, lithium and cobalt dissolution from LIBs.
    W prezentowanym artykule zbadano odzysk litu i kobaltu ze zużytych baterii litowo-jonowych (27.5% LiCoO2) za pomocą bioługowania. Eksperymenty zostały przeprowadzone za pomocą kultur bakterii kwasolubnych Acidithiobacillus ferrooxidans oraz Acidithiobacillus thiooxidans. Dla bioługowania Li i Co zastosowano dwa różne ośrodki: ośrodek bogaty we wszystkie minerały potrzebne do wzrostu bakterii oraz ośrodek o niskiej zawartości substancji odżywczych, którym był ośrodek zawierający jedynie kwas siarkowy oraz siarkę pierwiastkową jako źródło energii. W pierwszym ośrodku ogólna efektywność bioługowania litu i kobaltu wyniosła, odpowiednio, 80% i 67%. Dla drugiego ośrodka wyniki te były, odpowiednio, 35% Li oraz 10.5% Co. Wyniki eksperymentalne ukazały, że obecność substancji odżywczych w bioługowaniu wpływa znacząco na odzyskanie litu i kobaltu z baterii litowo-jonowych.
    Źródło:
    Inżynieria Mineralna; 2016, R. 17, nr 1, 1; 117-120
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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