Adsorption of water from methanol solution using batch and fixed-bed column with several adsorbents such as MgSO4, Na2SO4, molecular sieve 3A and 4A was investigated.
How much lithium adsorbent granules can be absorbed from a pretreated SLR?
Both Mn and Al-based adsorbent granules exhibited rapid adsorption of lithium from the pretreated SLR, reaching saturation within 2 h, with final capacity in the range 4–5 mg of lithium per g of adsorbent granular material.
Can lithium compounds be recycled from waste lithium-ion batteries?
This has led to the development of technologies to recycle lithium from lithium-ion batteries. This article focuses on the technologies that can recycle lithium compounds from waste lithium-ion batteries according to their individual stages and methods.
What are the different types of lithium ion adsorbents?
There are three main types of inorganic metal-based lithium ion adsorbents extensively applied for lithium extraction, including layered Al-based adsorption materials, Mn-based ion sieves, and Ti-based ion sieves , . The lithium adsorption process of these metal-based ion sieves is mainly governed by structural memory effect .
Can lithium-ion batteries be recovered by liquid-liquid extraction?
Li and Co recovery: Spent lithium-ion batteries can represent a source of critical raw materials. Here, the feasibility of the recovery of Li and Co through liquid-liquid extraction exploiting the 3-methyl-1-octylimidazolium thenoyltrifluoroacetone, Omim-TTA, ionic liquid as extracting agent is demonstrated.
In addition, lithium consumption has increased by 18% from 2018 to 2019, and it can be predicted that the depletion of lithium is imminent with limited lithium reserves. This has led to the development of technologies to recycle lithium from lithium-ion batteries.
Does the adsorption process maximize the recovery of lithium from SLR?
An integrated three-stage adsorption process was designed and evaluated to maximize the recovery of lithium from SLR. Results presented in Fig. 7 imply that the adsorption on both adsorbent granules decreased in subsequent adsorption stages, likely due to the reduced concentration gradient.