Journal of Industrial and Engineering Chemistry最新文献_第2页

Conductive NR/PMMA-RAFT-CNT-rGO composites and their morphological, mechanical, and electrical properties 导电 NR/PMMA-RAFT-CNT-rGO 复合材料及其形态、机械和电气性能

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.07.011

Dusadee Tumnantong , Sirilux Poompradub , Pattarapan Prasassarakich

{"title":"Conductive NR/PMMA-RAFT-CNT-rGO composites and their morphological, mechanical, and electrical properties","authors":"Dusadee Tumnantong , Sirilux Poompradub , Pattarapan Prasassarakich","doi":"10.1016/j.jiec.2024.07.011","DOIUrl":"10.1016/j.jiec.2024.07.011","url":null,"abstract":"<div><div>This study reports the synthesis of poly(methyl methacrylate) (PMMA)-carbon nanotube (CNT)-reduced graphene oxide (rGO) emulsions via reversible addition-fragmentation chain-transfer (RAFT)-mediated surfactant-free emulsion polymerization using a hydrophilic chain transfer agent. The rGO was prepared by the modified Hummers method and reduced with L-ascorbic acid. The effects of the CNT:rGO ratios and CNT and rGO contents on the conversion and stability of emulsion were investigated. Increasing the CNT and rGO contents from 1 to 4 wt% decreased the monomer conversion, while all the samples remained as colloidal dispersions. The morphology of PMMA-CNT-rGO composites showed the incorporated arrangement of a linear CNT portion connected with the rGO sheet dependent on the CNT:rGO ratio. Various PMMA-CNT-rGO filled natural rubber (NR) cast films were prepared. The NR/PMMA-CNT-rGO composite film with a 1 wt% filler loading at a CNT:rGO ratio of 1:1 presented a quite high modulus value (3.08 MPa) and sufficient intrinsic electrical conductivity (1.36 S/m) due to its strong filler-matrix interaction. Thus, the PMMA-RAFT-CNT-rGO composites at a very low filler content can be used as an effective reinforcement to enhance the mechanical and electrical properties of NR films with a high compatibility between the fillers and NR matrix.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 501-511"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141693246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth of nano-porous covalent organic frameworks on graphenic carbon hollow spheres; towards designing advanced multi-functional nanocomposites 在石墨烯碳空心球上生长纳米多孔共价有机框架；设计先进的多功能纳米复合材料

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.045

Seyyed Arash Haddadi , Mohammad Ramezanzadeh , Ghasem Bahlakeh , Bahram Ramezanzadeh

{"title":"Growth of nano-porous covalent organic frameworks on graphenic carbon hollow spheres; towards designing advanced multi-functional nanocomposites","authors":"Seyyed Arash Haddadi , Mohammad Ramezanzadeh , Ghasem Bahlakeh , Bahram Ramezanzadeh","doi":"10.1016/j.jiec.2024.06.045","DOIUrl":"10.1016/j.jiec.2024.06.045","url":null,"abstract":"<div><div><span>For the first time, melamine-based covalent organic frameworks<span> (COFs) were synthesized in situ on the graphenic shells of carbon hollow spheres (CHSs) for achieving a hybrid nanomaterial with unique thermo-mechanical characteristics. To improve the thermal stability of CHS-COF nanostructures (NSs), Zn</span></span><sup>2+</sup><span>/sodium L-glutamate (ZG) inorganic-organic complexes were loaded in their porosities and interior spaces (denoted as ZG@CHS-COF). The fabricated epoxy nanocomposites<span> illustrated enhanced thermo-mechanical and UV-shielding properties. The tensile strength<span> of the epoxy coatings<span>, filled with CHS-COF and ZG@CHS-COF NSs, increased by 185 and 168 %, respectively, compared to the blank epoxy. DMTA results revealed that the glass transition temperature (</span></span></span></span><em>T</em><sub>g</sub>) of the epoxy, filled with CHS-COF and ZG@CHS-COF NSs increased around 2.1 and 8.1 °C, respectively. Also, the lower height of tan(<em>δ</em>) peaks (<em>HTP</em>) in the presence of CHS-COF and ZG@CHS-COF NSs illustrated their better interactions with epoxy chains. The highest ash content (≈46.3 %) and superior thermal durability were acquired in the presence of ZG@CHS-COF NSs. TEM results confirmed the better dispersion and distribution of ZG@CHS-COF NSs than CHS ones. The ZG@CHS-COF-filled epoxy coating led to a 71 % reduction in color changes (Δ<em>E</em>) after 3 weeks of UV irradiation.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 351-365"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141713777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recovery of volatile fatty acids from anaerobic fermentation broth of baker’s yeast industry effluent by liquid−liquid extraction 用液液萃取法回收面包酵母工业废水厌氧发酵液中的挥发性脂肪酸

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.07.005

Ece Polat , Ayşegül Nalan Genç , Füsun Şeyma Güngör , Mahmut Altınbaş

{"title":"Recovery of volatile fatty acids from anaerobic fermentation broth of baker’s yeast industry effluent by liquid−liquid extraction","authors":"Ece Polat , Ayşegül Nalan Genç , Füsun Şeyma Güngör , Mahmut Altınbaş","doi":"10.1016/j.jiec.2024.07.005","DOIUrl":"10.1016/j.jiec.2024.07.005","url":null,"abstract":"<div><div><span>As metabolic intermediates, volatile fatty acids (VFAs) can be recovered by separation and purification and contribute to the economy. It was necessary, however, to investigate the optimization of liquid–liquid extraction (LLE) in this study because of the technical difficulties encountered during the recovery of VFAs. For this reason, the organic solvents diethyl ether, trioctylamine, and toluene were investigated as </span>LLE solvents to extract VFAs from Baker’s yeast industry effluent, which contains high levels of organic matter. An optimal pH value of 3 was determined by a pH scan performed between pH 2.5 and pH 7.5. Principal component analysis (PCA) was used to determine the effects of organic solvents and pH on extraction efficiency. The extraction efficiency was evaluated using the optimal pH and multi-stage extraction experiments. In a three-stage extraction, diethyl ether recovered 82% of the VFAs, making it a promising organic solvent for extracting VFAs from anaerobic fermentation broth. PCA revealed that an opposite correlation between VFA recovery and pH for each organic solvent. Based on the results of the cost analysis, it was determined that the costs of recovering VFAs were reduced by 90% per kilogram.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 431-440"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cancer intra and extracellular microenvironment-responsive electrical signal of touchable conductive hydrogel 可触摸导电水凝胶的癌症细胞内外微环境响应电信号

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.027

Hayeon Jo , Benny Ryplida , Kaustuv Roy , Sung Young Park

{"title":"Cancer intra and extracellular microenvironment-responsive electrical signal of touchable conductive hydrogel","authors":"Hayeon Jo , Benny Ryplida , Kaustuv Roy , Sung Young Park","doi":"10.1016/j.jiec.2024.06.027","DOIUrl":"10.1016/j.jiec.2024.06.027","url":null,"abstract":"<div><div><span>A wireless-integrated tumor microenvironment-responsive sensor designed from diselenide-functionalized carbon dot (dsCD) and hyaluronic acid polymer dot (PD(HA)) loaded in a mineralized conductive hydrogel (dsCD-PD(HA) Hydrogel) for detecting cellular reactive oxygen species (ROS) and pH detection. The manufactured ROS/pH responsive conductive hydrogel efficiently differentiated between cancer cells and normal cells in response to cellular factors through changes in fluorescence, electrical and mechanical response. Tumor microenvironment acidity and high ROS concentrations caused fluorescence recovery </span><em>via</em> boronate ester and diselenide bond cleavage alongside a change in electrical resistivity from 78.9 kΩ (pH 7.4) to 38.8 kΩ (0.1 mM H<sub>2</sub>O<sub>2</sub>/pH 6.8) due to disintegration of molecular interaction in the sensor. In vitro electrochemical analysis revealed different ΔR/R<sub>0</sub> bending profiles between cancer (26.2 % and 25.9 % for HeLa and PC-3, respectively) and normal cells (17.9 %), alongside the optical performance demonstrating higher regain of fluorescence of cancer cells (HeLa and PC-3) compared to the normal cells (CHO-K1). Additionally, the dsCD-PD(HA) Hydrogel demonstrated favorable biocompatibility and <em>in vitro</em> ROS scavenging, with selective targeting of cancer cells. A wireless sensing platform was developed by connecting the dsCD-PD(HA) Hydrogel sensor to a smartphone, showing a precise signal during detection <em>via</em> resistance or electro-mechanical signals.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 174-184"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-depth insight into the driving factors of the compressive strength development of MKPC based on interpretable machine learning methods 基于可解释的机器学习方法，深入了解 MKPC 抗压强度发展的驱动因素

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.039

Shanliang Ma, Jiarui Gu, Jie Wang, Yang Shao, Zengqi Zhang, Xiaoming Liu

{"title":"In-depth insight into the driving factors of the compressive strength development of MKPC based on interpretable machine learning methods","authors":"Shanliang Ma, Jiarui Gu, Jie Wang, Yang Shao, Zengqi Zhang, Xiaoming Liu","doi":"10.1016/j.jiec.2024.06.039","DOIUrl":"10.1016/j.jiec.2024.06.039","url":null,"abstract":"<div><div>Magnesium potassium phosphate cement (MKPC) is a kind of Mg-chemically bonded phosphate ceramic commonly used for rapidly repairing dilapidated structures. In this study, a compressive strength dataset of MKPC was constructed, and four advanced machine learning (ML) algorithms (XGBoost, RF, GBDT and ANN) were selected to establish a high-precision compressive strength prediction model of MKPC. The SHAP and PDP methods are also used for interpretability analysis of ML-MKPC models. The XGBoost model has good generalizability and reliability while achieving high prediction accuracy. The RF and GBDT models performed similarly to the XGBoost model on the training set but performed poorly on the testing set. The ANN model is poorly trained on both the training and testing sets, with a risk of underfitting. The R<sup>2</sup> of the XGBoost model at the different compressive strength stages still reaches above 0.80, indicating that it not only captures the complex relationships of the overall dataset well but also effectively predicts the staged strength dataset. Feature importance analysis revealed that the curing age (T), water-to-binder ratio (W/B), mineral admixtures-to-binder ratio (MA/B) and phosphate-to-magnesium ratio (P/M) are the principal variables affecting the compressive strength of MKPC. The partial interpretation shows that the optimum value range is determined when W/B is 0.10–0.18, MA/B is 0–0.20, P/M is 0.40–1.0, and R/M is 0–0.12. The composition of mineral admixtures with high-Ca, high-Si and low-Al systems seems to be more conducive to participating in the hydration reaction of MKPC. The ML-MKPC compressive strength prediction model developed in this study can provide theoretical support for the subsequent composition design and performance optimization of MKPC.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 305-318"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141702154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal reactivity and gas–solid product evolution during coal catalytic combustion: An experimental study 煤催化燃烧过程中的热反应和气固产物演化：实验研究

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.07.008

Huishuang Di , Baomin Sun , Mingyang Sun , Da Cui , Qing Wang

{"title":"Thermal reactivity and gas–solid product evolution during coal catalytic combustion: An experimental study","authors":"Huishuang Di , Baomin Sun , Mingyang Sun , Da Cui , Qing Wang","doi":"10.1016/j.jiec.2024.07.008","DOIUrl":"10.1016/j.jiec.2024.07.008","url":null,"abstract":"<div><div><span>To achieve efficient and clean coal combustion<span><span>, catalytic combustion technology has received widespread attention. This paper systematically studied the influence of calcium-based compounds on the thermal reactivity and gas–solid two-phase product evolution behavior of different coal using TG-MS and FTIR analysis, combining kinetics and thermodynamics methods, the catalytic coal mechanism was discussed. Results demonstrated that both catalysts improved the combustion reactivity, the burnout temperatures of lignite, </span>bituminous coal<span> and anthracite were reduced by 30.75 °C, 53 °C and 25.5 °C respectively with CaO, as well as decreased by 24.75 °C, 55.5 °C and 29 °C respectively with CaCl</span></span></span><sub>2</sub><span>. Meanwhile, it was worth noting that the activation energy of three coals was also reduced. CaCl</span><sub>2</sub> was more likely to bind with the C = O functional group on the surface of coal, forming CO-Ca<sup>2+</sup> complexes, resulting in a decrease in the content of C = O and C-O. While CaO tended to absorb volatile matter, causing local overheating and promoting the breakage of side chains and bridge bonds. Besides, the calcium-based compounds advanced the gas evolution peak of combustion and the emissions of CO<sub>2</sub>, NO<sub>2</sub> and SO<sub>2</sub><span> were effectively controlled. These results aimed at providing a new reference direction for further industrial development of clean coal combustion technology.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 468-476"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141710111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization-driven modelling of hydrochar derived from fruit waste for adsorption performance evaluation using response surface methodology and machine learning 利用响应面方法学和机器学习为水果废料衍生的水炭建立优化驱动模型，以进行吸附性能评估

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.042

Fathimath Afrah Solih , Archina Buthiyappan , Khairunnisa Hasikin , Kyaw Myo Aung , Abdul Aziz Abdul Raman

{"title":"Optimization-driven modelling of hydrochar derived from fruit waste for adsorption performance evaluation using response surface methodology and machine learning","authors":"Fathimath Afrah Solih , Archina Buthiyappan , Khairunnisa Hasikin , Kyaw Myo Aung , Abdul Aziz Abdul Raman","doi":"10.1016/j.jiec.2024.06.042","DOIUrl":"10.1016/j.jiec.2024.06.042","url":null,"abstract":"<div><div><span>This study aims to explore the potential of integrating Design of Expert (DOE) with Machine Learning (ML) to optimize and predict the adsorption process of solid adsorbent The prediction and optimization of adsorption performance can be improvised using statistical analysis and advanced predictive tools, resulting in substantial cost and energy savings. Firstly, the Response Surface Methodology-Central Composite Design (RSM-CCD) model was used to design and optimize the experiments on the adsorption of cationic dye using biomass-hydro char. Secondly, Random Forest (RF) was used to train the experimental results of RSM-CCD. It is well-suited for small datasets, withstands noise, and effectively reduces overfitting to predict adsorption performance. RF model demonstrated excellent accuracy, achieving a removal efficacy of 97.4 % with a significant R</span><sup>2</sup> value of 0.9981 compared to the RSM-CCD, which had a removal efficiency of 95.6 % and R<sup>2</sup><span> 0.9372. The physicochemical analysis also shows the novel hybrid hydrochar from fruit waste exhibits remarkable characteristics, including a higher content of carbon (78 %) and a surface area of 670 m</span><sup>2</sup><span>/g. In summary, RSM-CCD with ML provides precise optimization and predictions of the adsorption efficacy of the novel hydrochar. This has significant value for industrial applications in the field of material discovery.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 328-339"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141715641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in fuel oil desulfurization: A comprehensive review of polyoxometalate catalysts 燃油脱硫的进展：聚氧化金属催化剂综合评述

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.043

Hamna Khalid , Arsheen Umar , Muhammad Haris Saeed , Muhammad Shahid Nazir , Toheed Akhtar , Aamir Ikhlaq , Zulfiqar Ali , Sadaf Ul Hassan

{"title":"Advances in fuel oil desulfurization: A comprehensive review of polyoxometalate catalysts","authors":"Hamna Khalid , Arsheen Umar , Muhammad Haris Saeed , Muhammad Shahid Nazir , Toheed Akhtar , Aamir Ikhlaq , Zulfiqar Ali , Sadaf Ul Hassan","doi":"10.1016/j.jiec.2024.06.043","DOIUrl":"10.1016/j.jiec.2024.06.043","url":null,"abstract":"<div><div>Addressing the imperative need for cleaner fuel production worldwide, the reduction of sulfur content in fuel oil has become a paramount concern due to its severe implications for both health and the environment. The removal of refractory sulfur compound<span><span> is a contemporary challenge in the modern era for petroleum refineries, and oxidation of these rigorous </span>organosulfur compounds<span> is dynamic during deep oxidative desulfurization. In recent years, the utilization of hydrogen peroxide<span> as an oxidant<span><span> has gained prominence as it contains higher active oxygen content. Concurrently, polyoxometalate-based catalysts have garnered significant attention, owing to their distinctive attributes such as exceptional functionalization, stability, surface area, and porosity. This comprehensive review delves into the latest advancements in oxidative desulfurization techniques applied to fuel, focusing on the diverse array of polyoxometalates characterized by varying metal constituents and oxygen atom configurations. Through a systematic exploration of these catalysts, this study provides valuable insights into the evolving landscape of </span>fuel desulfurization, highlighting promising avenues for further research and sustainable fuel production.</span></span></span></span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 32-45"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141698785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient separation and comprehensive recovery of rare earth, bismuth and iron by one-step extraction and two-step stripping 通过一步萃取和两步剥离实现稀土、铋和铁的高效分离和综合回收

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.024

Wenhui Shi , Jian Li , Shuo Liu , Lei Zhou , Yaobin Lai , Yaoyao Zhu , Hui Zhang , Tao Qi

{"title":"Efficient separation and comprehensive recovery of rare earth, bismuth and iron by one-step extraction and two-step stripping","authors":"Wenhui Shi , Jian Li , Shuo Liu , Lei Zhou , Yaobin Lai , Yaoyao Zhu , Hui Zhang , Tao Qi","doi":"10.1016/j.jiec.2024.06.024","DOIUrl":"10.1016/j.jiec.2024.06.024","url":null,"abstract":"<div><div>A route was proposed to separate bismuth, iron, and rare earth elements<span> from a solution containing nickel and magnesium through one-step extraction and two-step stripping. Firstly, saponified di-(2-ethylhexyl) phosphoric acid (D2EHPA) was used as the extractant to separate target elements. RE(III), Bi(III), and Fe(III) could be separated from Ni(II) and Mg(II), with extraction efficiencies of more than 99 %. Secondly, RE(III), Bi(III), and Fe(III) were stripped selectively by nitric acid and oxalic acid, respectively. Subsequently, the iron present in the oxalic acid stripping solution was treated under UV irradiation for 15 min to recover oxalic acid and obtain the ferrous oxalate product. The stripping efficiencies of RE(III), Bi(III), and Fe(III) were up to 100 % for four-stage countercurrent stripping, and the recovery rates of RE(III) and Bi(III) were 97.3 % and 99.2 %. The purities of nitrate rare earth enrichment solution, bismuth oxalate and ferrous oxalate were 99.7 %, 98.4 % and 99.5 %, respectively. In addition, the extraction dynamic demonstrated that the double salt precipitation was not observed during the extraction when the extraction time exceeded 7 min and the extraction mechanism was analyzed using the slope method. This process shortens steps, and is more efficient to separate RE(III), Bi(III), and Fe(III) from the mixed solution containing Ni(II) and Mg(II), which has a prospective industrial application.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 145-153"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flue gas desulfurization by natural recyclable manganese ore in packed bed reactor and its performance prediction by random pore model 填料床反应器中天然可回收锰矿的烟气脱硫及其随机孔模型的性能预测

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2025-01-25 DOI: 10.1016/j.jiec.2024.06.034

M.S. Parandin, H. Ale Ebrahim, H.R. Norouzi

{"title":"Flue gas desulfurization by natural recyclable manganese ore in packed bed reactor and its performance prediction by random pore model","authors":"M.S. Parandin, H. Ale Ebrahim, H.R. Norouzi","doi":"10.1016/j.jiec.2024.06.034","DOIUrl":"10.1016/j.jiec.2024.06.034","url":null,"abstract":"<div><div>Various grades of manganese dioxide ores, as a natural recyclable sorbent, can be used in dry flue gas desulfurization (FGD) at moderate temperatures (350–450 °C). This research provided low- and high-grade manganese dioxide ores to examine SO<sub>2</sub> removal in a packed bed reactor. To obtain characteristic parameters of mineral sorbents, XRD, XRF, BET, and mercury porosimetry were employed. Then, kinetic parameters of desulfurization reaction were determined using thermogravimeter analyzer (TGA) and random pore model (RPM) for a single pellet. In desulfurization experiments of simulated flue gas in a packed bed reactor and mass spectrometer (MS) apparatus, the breakthrough times were measured under various operating conditions. The onset of these breakthrough times or life-time of MnO<sub>2</sub> reactor for the SO<sub>2</sub> removal was predicted successfully by RPM for a packed bed reactor using related kinetic constants from TGA. In addition, reacted sorbets were recycled multiple times after washing with water. Not only does this simple method separate MnSO<sub>4</sub> from unreacted sorbents as a valuable byproduct to reduce the FGD cost, but it also improves pore size distribution (PSD) of mineral MnO<sub>2</sub> by creating large pores. Modified PSD of this recycled sorbent caused increased breakthrough time.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 243-259"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0