Bridging Hydrometallurgy and Biochemistry: A Protein-Based Process for Recovery and Separation of Rare Earth Elements.
Bridging Hydrometallurgy and Biochemistry: A Protein-Based Process for Recovery and Separation of Rare Earth Elements.
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架起湿法冶金与生物化学的桥梁：一种基于蛋白质的稀土元素回收与分离工艺
DOI：
10.1021/acscentsci.1c00724
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发表时间：
2021-11-24
影响因子：
18.2
通讯作者：
Park DM
中科院分区：
文献类型：
--
作者：
Dong Z;Mattocks JA;Deblonde GJ;Hu D;Jiao Y;Cotruvo JA Jr;Park DM
从含稀土原料中提取并随后分离单个稀土元素（RE）是可再生能源技术发展和可持续性的一项具有挑战性但又至关重要的任务。作为克服当前稀土处理方法的技术和环境限制的重要一步，我们展示了一种基于生物的全水稀土提取和分离方案，使用稀土选择性lanmodulin蛋白。使用硫醇-马来酰亚胺化学将Lanmodulin缀合到多孔载体材料上，以使得能够在流通条件下串联REE纯化和分离。固定化的lanmodulin保持了可溶性蛋白质的吸引人的特性，包括显著的REE选择性，在低pH下结合REE的能力，以及在许多低pH吸附/解吸循环中的高稳定性。我们进一步证明了固定化lanmodulin的能力，以实现高纯度分离的清洁能源的关键稀土对钕/镝，并转化为单独的重，轻稀土馏分（88摩尔%的总稀土纯度）在一个单一的柱运行，而使用90%的柱容量的低品位浸出液（0.043摩尔%稀土）。这种首次实现从非常复杂的含水原料溶液中串联萃取和分组分离稀土元素而不需要有机溶剂的能力，确立了这种基于羊毛脂素的方法作为可持续湿法冶金的重要进展。从非常规原料中柱上回收和分离稀土元素的新型蛋白质基方法。
The extraction and subsequent separation of individual rare earth elements (REEs) from REE-bearing feedstocks represent a challenging yet essential task for the growth and sustainability of renewable energy technologies. As an important step toward overcoming the technical and environmental limitations of current REE processing methods, we demonstrate a biobased, all-aqueous REE extraction and separation scheme using the REE-selective lanmodulin protein. Lanmodulin was conjugated onto porous support materials using thiol-maleimide chemistry to enable tandem REE purification and separation under flow-through conditions. Immobilized lanmodulin maintains the attractive properties of the soluble protein, including remarkable REE selectivity, the ability to bind REEs at low pH, and high stability over numerous low-pH adsorption/desorption cycles. We further demonstrate the ability of immobilized lanmodulin to achieve high-purity separation of the clean-energy-critical REE pair Nd/Dy and to transform a low-grade leachate (0.043 mol % REEs) into separate heavy and light REE fractions (88 mol % purity of total REEs) in a single column run while using ∼90% of the column capacity. This ability to achieve, for the first time, tandem extraction and grouped separation of REEs from very complex aqueous feedstock solutions without requiring organic solvents establishes this lanmodulin-based approach as an important advance for sustainable hydrometallurgy. Novel protein-based method for on-column recovery and separation of rare earth elements from unconventional feedstocks.
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影响因子：
6.2
作者：
HORWITZ, EP;CHIARIZIA, R;DIAMOND, H
通讯作者：
DIAMOND, H
影响因子：
16.6
作者：
Bogart, Justin A.;Lippincott, Connor A.;Schelter, Eric J.
通讯作者：
Schelter, Eric J.
影响因子：
4.1
作者：
Bertelsen, Erin R.;Deodhar, Gauri;Shafer, Jenifer C.
通讯作者：
Shafer, Jenifer C.
影响因子：
18.2
作者：
Baldwin, Anna G.;Ivanov, Alexander S.;Shafer, Jenifer C.
通讯作者：
Shafer, Jenifer C.
影响因子：
5.4
作者：
Hussain, Rahib;Luo, Kunli
通讯作者：
Luo, Kunli