Temat: lithium extraction - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The investigation of lithium extraction by roasting with sulfating agent and water leaching from nepheline syenite rocks
Autorzy:: Üçerler, Zeynep
Güney, Ali
Tematy:: zinnwaldite
water leaching
roasting
lithium extraction; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/2146905.pdf Link otwiera się w nowym oknie
Opis:: In this study, the extraction of lithium from zinnwaldite concentrate containing 0.25% Li was investigated. The run-of-mine ore originated from nepheline syenite rocks in Kırşehir, Turkey, and contained 216.3 ppm Li. Firstly, the ore was beneficiated by a flotation process to increase the lithium content. Then, it was subjected to roasting and water leaching processes, respectively. In the roasting process, calcite and gypsum were used as additives to form dissoluble lithium sulfate for the next process. Additionally, the effect of roasting temperatures (750, 850, 950, and 1000°C) and times (30, 60, 90, 120, and 240 min) was examined along with different ratios of additives to concentrate to find the optimal conditions. Accordingly, the calcined product from the roasting process was dissolved in water by determining the optimal leaching temperature, time, and water/solid ratio. Consequently, a lithium product was obtained from the concentrate with 93.3% extraction efficiency. Finally, the mother liquor contained 30 mg/dm3 Li, the production of Li2CO3 from mother liquor will be investigated in case of production of the sample at the optimal conditions of roasting and leaching in further studies.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Legal aspects of lithium recovery from geothermal brine - Pyrzyce Geothermal Plant case study
Autorzy:: Kowalewska, Izabela
Worsa-Kozak, Magdalena
Tematy:: lithium extraction
critical raw materials
geological and mining law
combined heat and metals production
aqueous mining; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Powiązania:: https://bibliotekanauki.pl/articles/58972477.pdf Link otwiera się w nowym oknie
Opis:: The growing importance of using geothermal brine as an alternative source of lithium in the context of the dynamic development of new technologies is currently being pointed out. The various aspects involved need to be analyzed to consider the recovery of any element from geothermal water. The most crucial of these, after the purely technical aspects, is the legal framework of the operation. Poland and other countries have no specific legislative regulations for recovering lithium from geothermal brine, as existing activities have focused mainly on salt and heat extraction. This article presents a brief over-view of the worldwide literature and the current status of legal regulations related to lithium recovery from brine in Poland. The paper focuses on selected formal possibilities for the recovery of lithium from the water of the GT-1 BIS borehole owned by Geotermia Pyrzyce sp. z o.o. The study aims to present possible legal pathways for this process. The authors also draw conclusions about the need for new regulations to recover lithium from geothermal brine. The paper contributes to the research on developing lithium recovery from unconventional sources. Furthermore, it highlights the need for an appropriate legal framework for such kind of activity not only in Poland but in other countries as well. lithium extraction, critical raw materials, geological and mining law, combined heat and metals production, aqueous mining
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Hydrometalurgiczna ekstrakcja litu z glin montmorylonitowych
Hydrometalurgical extraction of lithium from montmorillonite-type clays
Autorzy:: Amer, A. M.
Rashed, M. A.
Tematy:: ekstrakcja litu
ekstrakcja hydrometalurgiczna
lit
gliny montmorylonitowe
hydrometalurgical extraction
extraction of lithium
lithium
montmorillonite-type clays; Pokaż więcej
Wydawca:: Polskie Towarzystwo Przeróbki Kopalin
Powiązania:: https://bibliotekanauki.pl/articles/318659.pdf Link otwiera się w nowym oknie
Opis:: Przeprowadzono badania wzbogacania gliny montmorylonitowej z El-Fayoum w Egipcie za pomocą ługowania przemysłowym kwasem siarkowym w auktoklawowym młynie kulowym. Wydzielono siarczan litu, który może być użyty do produkcji węglanu litu lub litu metalicznego. Zbadano wpływ temperatury, rozmiaru ziaren oraz stężenia kwasu siarkowego na uzysk litu jak również na kinetykę procesu. Najlepsze warunki ługowania uzyskano dla próbki o uziarnieniu -40 µm po 90 minutach ługowania w temperaturze 250°C kwasem siarkowym o stężeniu 8 kmol/m3.
A processing of El-Fayoum montmorillonite-type clay was carried out by leaching with commercial sulphuric acid using a ball mill type autoclave. This process yields lithium sulfate which can be used either for production of lithium carbonate or lithium metal. The effect of temperature, grain size, and sulfuric acid concentration and leaching on lithium recovery as well as the on kinetics of leaching process has been studied. The most favorable environment for the leaching of lithium from El-Fayoum bentonites with H2SO4 is at 250°C for 90 min using H2SO4 concentration equal to 8 kmol/m3 and grain size of -40 µm.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Synergistic solvent extraction of Co(II) and Li(I) from aqueous chloride solutions with mixture of Cyanex 272 and TBP
Autorzy:: Pospiech, B.
Tematy:: cobalt(II)
lithium(I)
Cyanex 272
TBP
synergistic extraction; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/110291.pdf Link otwiera się w nowym oknie
Opis:: In this work, separation of cobalt(II) over lithium(I) ions from aqueous chloride solutions by synergistic solvent extraction (SX) has been studied. A synergistic mixture of commercial extractants such as bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272) and tributyl phosphate (TBP) in kerosene was used as a selective extractant. The investigations were first performed to select optimal conditions for the effective separation including pH of the aqueous phase as well as concentration of synergistic mixture. High selective solvent extraction of cobalt(II) over lithium(I) from chloride solution has been achieved by the mixture of 0.1 M Cyanex 272 and 0.05 M TBP in kerosene while efficient Co(II) stripping has been performed by 0.5 M sulphuric acid.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

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
Tematy:: spent lithium-ion batteries
solvent extraction
ion exchange
separation; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/1446393.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Selective recovery of cobalt(II) towards lithium(I) from chloride media by transport across polymer inclusion membrane with triisooctylamine
Autorzy:: Pospiech, B.
Tematy:: cobalt(II)
lithium(I)
triisooctylamine
polymer inclusion membrane
PIM
lithium-ion batteries
LIBs
solvent extraction; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/779968.pdf Link otwiera się w nowym oknie
Opis:: In this work the selective transport of cobalt(II) and lithium(I) ions from aqueous chloride solutions through polymer inclusion membranes (PIMs) is presented. Triisooctylamine (TIOA) has been applied as the ion carrier in membrane. The effects of various parameters on the transport of Co(II) and Li(I) were studied. The obtained results show that Co(II) ions were effectively removed from source phase through PIM containing 32 wt.% TIOA, 22 wt.% CTA (cellulose triacetate) and 46 wt.% ONPOE (o-nitrophenyl octyl ether) or ONPPE (o-nitrophenyl pentyl ether) into deionized water as the receiving phase. The results indicate that there is a possibility of polymer inclusion membranes application to recover Co(II) and Li(I) from aqueous chloride solutions.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

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
Tematy:: spent lithium-ion batteries
divalent metal ions
solvent extraction
separation; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/1449331.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effect of Soil Properties on Lithinm Phytoavailability. Part 2. Lithium Content in Soil After Completion of Maize and Rye Vegetation
Wpływ właściwości gleby na fitoprzyswajalność litu. Cz. 2. Zawartość litu w glebie po zakończeniu wegetacji kukurydzy oraz owsa
Autorzy:: Rogóż, A.
Tematy:: formy litu w glebie
sekwencyjna ekstrakcja
właściwości gleby
lithium forms in soil
sequential extraction
soil properties; Pokaż więcej
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/389572.pdf Link otwiera się w nowym oknie
Opis:: Soil samples were collected from each sedes after the end of rye vegetation in order to follow changes which occurred in physical and chemical properties. Increasing doses of organic matter and applied two doses of lithium affected changes of soil physical and chemical properties. Applied doses of lithium and organic matter influenced the values of pH and hydrolytic acidity, organic carbon content and the content of lithium in soil. Metal seąuential extraction with soltitions of various leaching power: H2O; 2.5 % CH3COOH; 0,1 mol K2P.,O7 o dm-3; 0.1 mol H2C2O4 o dm-3 + 0.175 mol (NH4)iC2O4 o dm-3 was used to determine lithium content and its forms in soil. In result of sequential extraction were lithium forms extracted from easily soluble, ie bioavailable, through weakly bound to sorption complex to sparingly soluble and immobilized, therefore unavailable to plants. Lithium content in individual fractions was quite diversified. The factor determining this element level in the analyzed soil was applied lithium dose and increasing doses of organic matter. One of many factors affecting tlie size of sorption complex. Lithium doses of 10 and 20 mg Li per pot very distinctly affected the amount of lithium extracted using 2.5 % CH3COOH as F-2 form. In this case a similar dependence occurred as in F-1 fraction. The content of lithium bound to organic matter (F-3), extracted with 0.1 mol K2P4O7 o dm-3 ranged from 0.212 to 0.340 mg Li o kg-1.The quantity of cation bound to organic matter extracted using 0.1 mol lithium doses.
Po zakończonym okresie wegetacji żyta pobrano próbki glebowe z każdej serii w celu prześledzenia zmian, jakie zaszły we właściwościach fizycznych i chemicznych. Wzrastające dawki materii organicznej oraz zastosowane dwie dawki litu powodowały zmiany właściwości fizycznych i chemicznych gleby. Zastosowane dawki litu oraz materii organicznej wpływały na wartość pH, wartość kwasowości hydrolitycznej, zawartość C-organicznego oraz na zawartość litu w glebie. W celu określenia zawartości litu oraz jego form w glebie wykorzystano metodę sekwencyjnej ekstrakcji metali, stosując roztwory o różnej sile ługowania: H2O; 2,5 % CH,COOH; 0,1 mol KiP4O7 o dm-3; 0,1 mol H2C2O4 o dm-3 + 0.175 mol CU o dm-1. W wyniku sekwencyjnej ekstrakcji oznaczono formy litu od łatwo rozpuszczalnych, czyli dostępnych dla roślin, przez słabo związane z kompleksem sorpcyjnym, po trudno rozpuszczalne, nieuruchamiane, a więc niedostępne dla roślin. Zawartość litu w poszczególnych frakcjach była dość zróżnicowana. Czynnikami decydującymi o poziomie tego pierwiastka w poszczególnych formach w glebie były zastosowana dawka litu oraz wzrastające dawki materii organicznej, jednego z parametrów wpływających na kompleks sorpcyjny. Zastosowane dawki litu w ilości 10 i 20 mg Li o wazon-1 wpływały bardzo wyraźnie na ilość wyekstrahowanego litu przy użyciu H2O - formy F-1, a zastosowane wzrastające dawki materii organicznej wpływały ograniczająco na ilość litu wyekstrahowanego przy użyciu H2O. Zawartość litu związanego z materią organiczną F-3, ekstrahowanego 0,1 mol K2P407 o dm-3, wahała się od 0,2 1 2 do 0,340 mg Li o kg-1. Ilość kationu związanego z materią organiczną wyekstrahowanego 0,1 mol K2P4O7 o dm-3 wyraźnie wzrastała w obiektach ze wzrastającymi dawkami litu.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Fusion model based RUL prediction method of lithium-ion battery under working conditions
Autorzy:: Fang, Pengya
Sui, Xiaoxiao
Zhang, Anhao
Wang, Di
Yin, Liping
Tematy:: lithium-ion battery
available capacity estimation
remaining useful life
RUL
health feature extraction
data-driven approach; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Powiązania:: https://bibliotekanauki.pl/articles/59113101.pdf Link otwiera się w nowym oknie
Opis:: Under working conditions, since the remaining useful life (RUL) prediction of lithium-ion battery is subject to uncertainties of random charging and discharging, and infeasibility of battery capacity test, a fusion model based RUL prediction method was proposed. First, the feature learning method of lithium-ion batteries was developed by synthesizing manual extraction and one-dimensional convolutional neural network (1DCNN) extraction. Then, a fused method was proposed to estimate the historical available capacity through exploring the spatial and temporal relationship of features, and the long short-term memory (LSTM) network model was adopted for predicting the RUL of lithium-ion battery. The proposed method was verified through the comparison of differentmethods, and the results show that it can realize highly precise and stable capacity estimation and RUL prediction under working conditions.
Dostawca treści:: Biblioteka Nauki

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