Article
Chemistry, Multidisciplinary
Ming Liang, Haokai Di, Yan Hong, Leiting Song, Jie Dai, Kun Yang, Libo Zhang
Summary: A new process involving ultrasonic and iron powder is proposed to enhance the efficiency of germanium leaching from zinc oxide dust. The addition of iron powder reduces the formation of insoluble Fe4Ge3O12, increasing the leaching efficiency by 5.30%. Ultrasonic dispersion of the iron powder reduces local reduction imbalance and decreases dissolved oxygen, resulting in a further increase of 3.87% in germanium leaching efficiency. These findings provide a new method and theoretical guidance for the efficient utilization of zinc oxide dust containing germanium, which is of significant importance.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Chemical
Ming Liang, Haokai Di, Yan Hong, Yiner Zeng, Leiting Song, Junchang Liu, Kun Yang, Libo Zhang
Summary: This paper demonstrates the use of ultrasonic wave to enhance the leaching process of zinc oxide dust containing germanium. The results show that ultrasonic enhanced leaching reduces surface tension and viscosity of the leaching solution, decreases particle size, and increases surface free energy, specific surface area, and pore volume. These improvements enhance the reaction between sulfuric acid and dust, leading to an increased leaching rate and efficiency of germanium. Under ultrasonic conditions, the leaching efficiency of germanium is improved by 3.94% and the time to reach equilibrium is shortened by about 40.00%.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2023)
Article
Chemistry, Physical
Xuemei Zheng, Shiwei Li, Bingguo Liu, Libo Zhang, Aiyuan Ma
Summary: The ultrasound-enhanced sulfuric acid leaching method significantly improves the zinc leaching rate from zinc oxide dust, making it an important process for the comprehensive recycling of zinc resources. The method increases the zinc leaching rate by 5.8% compared to conventional leaching methods.
Article
Metallurgy & Metallurgical Engineering
Tao Jiang, Tao Zhang, Zhihong Liu
Summary: The recovery of germanium and zinc from secondary zinc oxide can be effectively achieved through a manganese dioxide-based leaching process (ML), enabling a complete utilization of resources and a reduction in solid waste generation in zinc metallurgy.
Article
Engineering, Chemical
Chunlin Chen, Yong Zhen, Chunlin Li, Chang Wei, Minting Li, Zhigan Deng, Xingbin Li
Summary: Recovering germanium from zinc oxide dust is an important method for extracting germanium. This study investigated the leaching behavior of germanium in different phases and identified the factors influencing the leaching efficiency.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2023)
Article
Metallurgy & Metallurgical Engineering
Jiang Tao, Meng Fei-yu, Gao Wei, Zeng Yan, Su Huan-huan, Li Qian, Xu Bin, Yang Yong-bin, Zhong Qiang
Summary: The leaching behavior of crude zinc oxide (CZO) was studied using ammonia-ammonium carbonate solution, showing that CZO required longer time and more leaching agents compared to pure zinc oxide (PZO) due to the presence of Cd2+, Pb2+ and other metal cationic impurities in CZO.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Engineering, Chemical
Shuxian Wang, Cunying Xu, Zhen Lei, Jianru Li, Jingling Lu, Qinqin Xiang, Xiao Chen, Yixin Hua, Yan Li
Summary: The leaching of zinc from zinc oxide dust in a choline chloride-urea deep eutectic solvent with the addition of nitrilotriacetic acid was studied, and the optimal conditions for efficient recovery of zinc were determined through experimentation. Diffusion-controlled process with an activation energy of 26.2 kJ/mol. The resulting leaching solution was used for the electrodeposition of pure zinc deposit.
MINERALS ENGINEERING
(2022)
Article
Metallurgy & Metallurgical Engineering
Ming Liang, Haokai Di, Leiting Song, Kun Yang, Libo Zhang
Summary: This article investigates the behavior of germanium and iron in the leaching process of zinc oxide dust, and finds that germanium primarily exists in the form of soluble germanium oxide and germanates. The leaching time has the most significant impact on germanium leaching efficiency, as prolonged leaching time results in the precipitation of Fe4Ge3O12 with the leaching germanium. By optimizing parameters such as sulfuric acid concentration, liquid-solid ratio, leaching temperature, and leaching time, the leaching efficiency of zinc and germanium can be improved. Furthermore, the use of sodium sulphite-assisted leaching can further increase the leaching efficiency of germanium.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Article
Green & Sustainable Science & Technology
Neha Nagar, Himanshi Garg, Meenakshi Dhaka, Chandra Sekhar Gahan
Summary: The study evaluates the bioleaching of zinc sulfide concentrate in controlled redox potential fed-batch mode to prevent passivation and increase recovery rate. The use of a mixed culture of iron-oxidizing microorganisms dominated with Leptospirillum ferriphilum and the controlled addition of zinc sulfide concentrate with high redox potential resulted in a higher recovery rate compared to the traditional batch mode. This innovative approach reduces cost and improves efficiency in bioleaching.
JOURNAL OF SUSTAINABLE METALLURGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Shuai Rao, Zhi-qiang Liu, Dong-xing Wang, Hong-yang Cao, Wei Zhu, Kui-fang Zhang, Jin-zhang Tao
Summary: Zinc, lead, gallium, and germanium were successfully separated and recovered from zinc refinery residues using stepwise leaching method. The process involved leaching with sulfuric acid followed by leaching with hydrochloric acid, and finally extracting germanium in sodium hydroxide solution. The proposed process achieved high recoveries of the target metals, presenting potential industrial applications.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Engineering, Chemical
Yingxu Zhu, Zhigan Deng, Chang Wei, Yuan Yang, Pu Sun, Xingbin Li, Minting Li, Gang Fan
Summary: The study successfully used an adaptive process to treat germanium-containing secondary zinc oxide, and verified the efficiency and stability of the process through batch and continuous experiments. The leaching efficiencies of zinc and germanium were investigated separately in the experiments, and the process was found to be promising for industrial application.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2021)
Article
Energy & Fuels
Leiting Song, Yiner Zeng, Ming Liang, Haokai Di, Junchang Liu, Kun Yang, Libo Zhang
Summary: This study proposed a process of strengthening germanium leaching by ultrasonic wave in sulfuric acid leaching process to improve the low extraction efficiency of germanium in zinc oxide dust. The effects of acidity, temperature, time, liquid-solid ratio, ultrasonic power and amount of iron powder on germanium leaching were investigated, and the ultrasonic enhanced leaching process was optimized. The results showed that ultrasound can destroy the particle size, reduce the cluster structure of leached products, inhibit the agglomeration of particles, and promote the leaching of germanate and germanium sulphide.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Engineering, Chemical
Wei Ding, Shenxu Bao, Yimin Zhang, Junhui Xiao
Summary: This study systematically investigated the effect and mechanism of ultrasound on the leaching of gallium and zinc from corundum flue dust (CFD). The results showed that ultrasound could significantly increase the leaching efficiencies of gallium and zinc. The enhancement of ultrasound was attributed to the breaking of particle agglomerates, improving sulfuric acid diffusion, and accelerating the reaction between sulfuric acid and amorphous silicate.
MINERALS ENGINEERING
(2022)
Article
Metallurgy & Metallurgical Engineering
Yang Xue, Xiaoming Liu, Na Zhang, Song Guo, Zhiqing Xie, Chunbao Xu Charles
Summary: This study proposes an oxygen pressure leaching method for selectively leaching zinc from converter dust (CD). The method effectively promotes the decomposition of ZnFe2O4 to increase zinc recovery and skillfully oxidizes and hydrolyzes Fe2+ in the solution to solid Fe(OH)SO4. Under optimal conditions, the leaching efficiency of zinc reached 98.8%, and 86.3% of iron remained in the leach residue, achieving the one-step separation of zinc and iron. Additionally, the leach residue was successfully used to synthesize a magnetically recyclable iron oxides@HTCC composite photocatalyst.
Article
Geochemistry & Geophysics
Jinxia Zhang, Jiajing Dong, Fusheng Niu, Chao Yang
Summary: This study experimentally investigated the secondary recovery of zinc from zinc-bearing dust sludge using a Choline chloride-urea deep eutectic solvent (DES). The optimal parameters for zinc leaching efficiency were determined, resulting in an efficiency of 86.87%. XRF and EDS analyses confirmed selective and efficient leaching of zinc, with a calculated apparent activation energy of 22.16 kJ/mol.
Article
Chemistry, Multidisciplinary
Wafa A. Bawazir, Maymoona A. Al-Mahmood, Rawan S. Almalki, Ghadi F. Alofi, Raghad S. Alharbi, Zoya Zaheer
Summary: This study investigates the interaction between sulfathiazole and three types of surfactants using UV-visible spectroscopy and conductivity measurements. The results show that the critical micelle concentration of cationic and anionic surfactants decreases with increasing sulfathiazole concentration, while the interaction with non-ionic surfactant is weak.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Musaad K. Aleid, Khalid N. Alharbi, Mona A. Aljufareen, Areej S. Aloliwi, Alhanouf K. Almutairi, Rahaf S. Alsaif, Nada K. Alshayeb, Mohammed S. Almoiqli
Summary: This study assessed the levels of trihalomethane compounds in the water network of Riyadh city and identified the factors influencing their formation. The concentrations of trihalomethane compounds were within the permissible limits, indicating the water's safety for human consumption. The presence of bromide ions, organic carbon, free chlorine, and pH values were found to affect trihalomethane formation.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Said Arhzaf, Jamal Houssaini, Mohammed Naciri Bennani, Marwa Alaqarbeh, Mohammed Bouachrine
Summary: The study shows that Mg-Al hydrotalcite catalysts intercalated with acetate and carbonate anions exhibit superior catalytic activity in the aldol condensation reaction between furfural and acetone. The optimal reaction conditions are at 90 degrees C for 2 hours, achieving conversion rates of over 98% with high selectivity towards F2A for the acetate catalyst.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Uyen-Chi Nguyen Le, Ngoc Xuan Dat Mai, Kieu-Minh Le, Hoang Anh Vu, Huynh-Nhu Thi Tran, Tan Le Hoang Doan
Summary: This study aimed to enhance the bioavailability of rosmarinic acid, a bioactive compound with high anticancer activity, by encapsulating it in tetrasulfide-based porous organosilica nanoparticles. The synthesized nanoparticles were small in size and had a high surface area and an average pore diameter. The nanoparticles showed effective accumulation in cancer cells without toxicity to normal cells. Treatment with rosmarinic acid-containing nanoparticles resulted in significant cell death in cancer cells. Overall, these findings suggest that the synthesized nanoparticles can enhance the pharmacological effects of rosmarinic acid.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jiamin Qi, Hengxi Zhu, Tianyu Yang, Xingyuan Wang, Zixuan Wang, Xiaoli Lei, Bin Li, Wenmin Qian
Summary: This study synthesized a novel iron-biochar adsorbent using the iron content in red mud to remove heavy metals from wastewater. The adsorbent showed excellent removal efficiency and sustainability. This method addresses both industrial waste recovery and heavy metal adsorption issues.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Bo Yi, Li Zhang, Haiyang Zhou
Summary: Plasma protein binding plays a crucial role in the pharmacokinetics and pharmacodynamics of therapeutic bioactive materials. In this study, the interaction of nordentatin, a member of coumarins, with human alpha-1 acid glycoprotein (AGP) was investigated, and the anticancer potency of nordentatin against human colorectal cancer cells was evaluated. The results showed that nordentatin binds to AGP through a static quenching mechanism and exhibits inhibitory effects on the growth of HCT-116 cells by increasing intracellular ROS and [Ca2+] levels and triggering apoptosis-related gene overexpression. Therefore, nordentatin could be a promising plant-based therapy for colorectal cancer.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qiming Pang, Cui Wang, Bangtao Li, Suli Zhang, Jiaoyang Li, Shuo Gu, Xueyu Shi
Summary: This study evaluated the effects of resveratrol loaded in copolymer nanoparticles on cerebral ischemia/reperfusion (I/R) injury in rats. The results showed that RES.CP.NPs could have neuroprotective effects through their antioxidant and anti-inflammatory activities, leading to improved neurological disability scores and decreased oxidative stress levels.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Maryam Rachmawati Sumitra, Lung-Ching Chen, Wei-Chen Tsai, Muhamad Ansar, Bashir Lawal, Ntlotlang Mokgautsi, Jih-Hwa Guh, Alexander T. H. Wu, Hsu-Shan Huang
Summary: Tetraheterocyclic compounds derived from natural sources and contemporary pharmaceuticals have shown promise as multitarget therapeutic agents. In this study, a series of synthesized compounds were evaluated for their potential in breast cancer treatment. Compounds 18 and 20 demonstrated significant antiproliferative activity against breast cancer cell lines and their mode of action was revealed through molecular docking simulations.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Mohammad Khosravani, Mohsen Dehghani Ghanatghestani, Farid Moeinpour, Hossein Parvaresh
Summary: The aim of removing Pb(II) from water is to minimize the potential harm posed by toxic metals to both human health and the environment. A covalent organic framework adsorbent called TFPOTDB-SO3H was developed with excellent properties such as high repeatability, selectivity, and easy solid-liquid separation. The adsorbent showed impressive capability of adsorbing Pb(II) and effective removal of it from a solution with various ions, suggesting its potential for effectively adsorbing and removing Pb(II) heavy metal ions from wastewater.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Ashraf H. Farha, Mohamed S. Shams, Hasna A. Alali, Zakia H. Alhashem, Shehab A. Mansour, Shrouq H. Aleithan, Ragab A. Elsad
Summary: The current study examines the dielectric and thermal properties of transformer oil incorporated with Mn0.5 Zn0.5 Fe2O4 nanoparticles. The results show that the addition of Mn-Zn ferrite NPs improves the dielectric constant, dissipation factor, AC breakdown voltage, and convective heat transfer of the nanofluid.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Limin Hou, Zongpei Jiang, Minqi Ye, Xueyan Sun, Kexin Liu, Yifan Zhu, Xiaoyu Wang, Liangzhu Chen, Ruiheng Gu, Binghu Fang
Summary: The excessive accumulation of antibiotic residue in animal-derived foods poses a threat to health. Therefore, it is necessary to establish a rapid, simple, effective, safe, and highly sensitive method for detecting lincomycin residues. By using a pre-column derivatization method on high-performance liquid chromatography equipped with ultraviolet, the UV absorption of lincomycin is improved, allowing for detection and quantification.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Kun Tang, Xin-Xin Wang, Jin-Jin Zhao, Ning Ren, Jian-Jun Zhang
Summary: This study reports the synthesis, crystal structures, and thermal degradation properties of three new rare earth coordination compounds. Compounds 1-3 exhibit binuclear structures which can form chain-like structures via hydrogen bonding. Compound 2 shows potential application value in the orange-red luminescence region.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Seoyoun Yang, Eunbi Yu, See-Hyoung Park, Sae Woong Oh, Kitae Kwon, Su Bin Han, Soo Hyun Kang, Jung Hyun Lee, Heejun Ha, Minkyung Song, Jae Youl Cho, Jongsung Lee
Summary: This study investigated the effects of blue light on the hypodermis and found that it has antiadipogenic properties by reducing lipid accumulation and downregulating the expression of adipogenic genes. Blue light also increased the phosphorylation of PPAR gamma and TRPV1, suggesting its anti-adipogenic effect through these signaling pathways.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Abdul Nasir, Abdul Waheed Khan, Hamid Rafiq Khattak, Abdus Samad, Sami Ullah, Haroon Khan, Muhammad Faheem, Qian Bai
Summary: This study evaluated the effects of isoxazolone derivatives on cisplatin-induced neuropathy in a rat model. The results showed that isoxazolone derivatives effectively reversed mechanical allodynia, similar to the known therapeutic agent pregabalin. Molecular docking analysis indicated that isoxazolone derivatives have strong binding affinity for relevant receptors and potential inhibitory activity against relevant signaling pathways. This study has innovative implications for the treatment of cisplatin-induced neuropathic pain.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Shahid Wahab, Haroon Muhammad Ali, Maham Khan, Tariq Khan, Chandran Krishnaraj, Soon-Il Yun
Summary: In this study, we synthesized chitosan nanoparticles, silver nanoparticles, and chitosan/silver nanocomposites using aqueous ginger extract as a green approach. These nanomaterials showed significant antibacterial properties and low toxicity. Furthermore, the nanomaterials conjugated with tobramycin demonstrated enhanced antibacterial efficacy and exhibited interactions with Pseudomonas aeruginosa.
ARABIAN JOURNAL OF CHEMISTRY
(2024)