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油田采出水锂资源梯级膜浓缩与纯化

Gongye shui chuli
针对油田采出水吸附提锂所得富锂液存在锂浓度低、杂质含量高，易造成后续碳酸锂沉淀过程能耗高、纯度差等问题，本文系统开展了膜集成工艺用于富锂液纯化与浓缩的研究。以中原油田吸附提锂富锂液为研究对象，构建了“反渗透（RO）初步浓缩→纳滤（NF）深度除杂→两级电渗析（ED）串联浓缩”的梯级耦合工艺，考察该集成体系整体分离浓缩效果。结果表明：RO单元将富锂液中Li+从167 mg/L浓缩至2074 mg/L，浓缩倍数达12.42倍，且对Li⁺截留率不低于99.2%；NF单元对Ca2+、Mg2+的去除率分别达82.3%
王莲莲, 袁伟红, 单威威
doaj   +4 more sources

Anisotropic MoS2/SiC Aerogels: A Multifunctional Platform for Broadband Electromagnetic Stealth and Thermal Management

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song, Longhui He, Fanqi Meng, Hui Zhang, Lixi Wang   +4 more
wiley   +1 more source

Structural Distortion for Polyoxometalate‐Derived Metal Sulfide Induced by In Situ Intercalation With Organic Ligands Achieving Efficient Electrocatalytic Hydrogen Evolution Performance in Alkaline/Seawater Medium

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu, Zhihan Chang, Xue Xi, Zhifei Zu, Wenjie Hua, Xiuli Wang   +5 more
wiley   +1 more source

Sustainable Nanocellulose‐Based Materials for Environmental Remediation: Structure–Function Relationships and Applications

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Environmental pollution across water, air, and soil systems poses escalating threats to human health and ecosystem stability, driven by heavy metals, persistent organic pollutants, particulate matter (PM), bioaerosols, and toxic gases. Conventional remediation technologies often suffer from limited selectivity, insufficient efficiency, and the
Junjie Qi, Kun Liu, Tairan Pang, Ting Xu, Hanjie Cui, Haishun Du, Chuanling Si   +6 more
wiley   +1 more source

Template‐Assisted Construction of Atomically Dispersed Fe‐N‐C Catalysts With Dense Fe‐N4C Sites for Enhanced Oxygen Reduction Reaction

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Atomically dispersed iron–nitrogen–carbon (Fe‐N‐C) catalysts have emerged as promising alternatives for oxygen reduction reaction (ORR) owing to their highly atomic utilization. However, maintaining both Fe atomic dispersion and dense Fe‐Nx sites (typically below 2 wt%) in Fe‐N‐C catalysts is still a key challenge.
Lijuan Wang, Jie Hou, Wubo Wan, Yongjie Mo, Zhijian Liao, Shengkui Zhong, Linhua Zhu   +6 more
wiley   +1 more source

Nitrogen deposition does not exacerbate phosphorus limitation of rhizosphere microbes in subalpine forests

Functional Ecology, Volume 40, Issue 5, Page 1428-1442, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric imbalance caused by nitrogen (N) deposition typically exacerbates phosphorus (P) limitation in plants. However, it remains unclear whether this effect extends to soil microbes, particularly those in the rhizosphere.
Jipeng Wang, Min Li, Dungang Wang, Huangxin Zhang, Na Li, Huajun Yin   +5 more
wiley   +1 more source

High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li, Wanquan Yu, Haigang Dong, Chenchen Li, Qi Meng, Peng Dong   +5 more
wiley   +1 more source

Accumulation and degradation of anionic surfactant linear alkylbenzene sulfonate (LAS) by Spirulina platensis(钝顶螺旋藻对阴离子表面活性剂(LAS)的富集与降解)

Zhejiang Daxue xuebao. Lixue ban, 2006
实验考察了使用钝顶螺旋藻富集与降解溶液中的阴离子表面活性剂(LAS).结果表明，溶液中不同浓度LAS存在下，钝顶螺旋藻的生长符合逻辑斯谛克方程；钝顶螺旋藻对LAS具有一定的富集能力，当LAS的质量浓度为0.5、1、2 mg/L时，24 h时富集量达到最大，分别为2. 43、4. 83、10.12 mg/g；钝顶螺旋藻对LAS也具有一定的降解能力，当LAS的质量浓度分别为0.
LIHao-xiang(李昊翔), JIANGXiao-long(蒋小龙), CHENFeng(陈锋), CHENHong(陈红)   +3 more
doaj   +1 more source

In‐Sensor Reservoir Computing Employing Reconfigurable Optoelectronic Transistors for Multi‐Task Learning

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The edge deployment of artificial intelligence has driven the exploitation of compact, energy‐efficient information processing systems that integrate sensing, memory, and multi‐task processing functions. However, conventional vision systems suffer from significant energy/time overhead, extra hardware costs, and an unaffordable algorithm ...
Shanshan Jiang, Hainan Zhang, Kesheng Wang, Shuo Cheng, Can Fu, Huanhuan Wei, Gang He   +6 more
wiley   +1 more source

微型飞行时间质谱在线样品富集装置

, 2008
本发明公开了一种微型质谱中样品直接进样在线富集的膜进样装置，采用无孔致密聚二甲基硅氧烷片状膜，能够有效限制进入质谱的气体量，同时可以做为质谱和大气的中间接口。装置中采用了单层超薄膜对样品进行快速富集，膜后具有一真空差分腔体，该腔体用来进行富集样品的缓冲和存储。该腔体处于低真空条件下，所以允许加大膜的面积，从而加大样品与膜的接触面积，富集效率提高。差分口处安装有电磁阀，当要进行气体富集时关闭抽气口，气体经过膜进入缓冲腔体进行富集。样品分析完毕后开通电磁阀门进行差分抽气，把富集后的样品迅速抽出防止记忆效应 ...
侯可勇, 李海洋
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