Russian Journal of Applied Chemistry最新文献_第4页

Surface Investigation of Aerospace 7075-T6 Aluminum Anodized in the Presence of Glycols 在乙二醇存在的情况下阳极氧化航空 7075-T6 铝的表面研究

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-28 DOI: 10.1134/S1070427224020058

Hamid Reza Pouretedal, Hossian Rasooli, Saeed Mahbob

引用次数: 0

Sequential Steps for Purifying Wet Processed Phosphoric Acid for Producing a High-Tech Grade and Barium or Ammonium Phosphate Salts 净化湿法磷酸以生产高科技级磷酸钡盐或磷酸铵盐的连续步骤

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-28 DOI: 10.1134/S107042722402006X

A. H. Ali

{"title":"Sequential Steps for Purifying Wet Processed Phosphoric Acid for Producing a High-Tech Grade and Barium or Ammonium Phosphate Salts","authors":"A. H. Ali","doi":"10.1134/S107042722402006X","DOIUrl":"10.1134/S107042722402006X","url":null,"abstract":"Batch experiments were used in this study to investigate the cleaning of phosphoric acid solution from cationic impurities. A set of steps was used to clean up wet-processed phosphoric acid to technical grade phosphoric acid, which included solvent extraction, scrubbing, stripping, evaporation, contacting the produced phosphoric acid with two types of carbon (activated carbon as received and oxidized activated carbon) for 1 h, filtration, neutralizing the acid with ammonia solution to pH 7 to produce soluble salt of ammonium phosphate, filtration, again contacting the phosphate salt solution with the two types of carbon for 1 h. Finally, contacting it with resin Amberlite IR 120-H- form or adding sulfuric acid to obtain purified technical grade phosphoric acid or producing barium or ammonium phosphate salts. Different variables that influence the adsorption process were examined, including medium acidity, shaking time, adsorbent-to-volume ratio, temperature, and phosphoric acid initial concentrations. The adsorption isotherms, the Langmuir isotherm model (R2 = 0.99), and the Freundlich model (R2 = 0.76) were studied to assess the maximal removal efficacy of adsorbents; it was found that the experimental results agreed with the Langmuir isotherm.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"97 2","pages":"199 - 210"},"PeriodicalIF":0.6,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141532582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of Synthetic Iron Oxide-Doped Titanium Dioxide Nanoparticles in Photocatalytic Degradation of BTX from Petroleum Wastewater 利用合成氧化铁掺杂二氧化钛纳米粒子光催化降解石油废水中的 BTX

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-22 DOI: 10.1134/s1070427224010154

Firdos M. Abdulla, Zainab Y. Shnain, Asawer A. Alwaisit, Mohammad F. Abid

{"title":"Use of Synthetic Iron Oxide-Doped Titanium Dioxide Nanoparticles in Photocatalytic Degradation of BTX from Petroleum Wastewater","authors":"Firdos M. Abdulla, Zainab Y. Shnain, Asawer A. Alwaisit, Mohammad F. Abid","doi":"10.1134/s1070427224010154","DOIUrl":"https://doi.org/10.1134/s1070427224010154","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The aim of the work is to investigate the use of synthetic doped catalyst in the removal of benzene, toluene, and xylene (BTX) from petroleum wastewater by photocatalyst process in a circular column reactor. Fe2O3-doped anatase TiO2 with 10 nm average grain size was synthesized by the impregnation method. The prepared doped catalyst was characterized using energy-dispersive X-ray (EDS), scanning electron microscopy (SEM), Surface Area Analysis using the Brunauer–Emmett–Teller (BET), Fourier transforms infrared spectroscopy (FTIR) beforehand with XRD. Then it is evaluated in a photocatalyst process A which was done in a circular column with dimensions of 70 mm diameter and 390 mm height, under visible light. The study also shows the influence of pH, light intensity and residence time on the BTX removal. The experiment was carried out under different values of pH (3‒11), light intensity 14‒42 W and irradiation time 30‒120 min. The results show that the maximum removal efficiency was 90% when pH 6.5, 42 W light intensity and after 120 min. The kinetic model as well as Adsorption isotherm were also studied.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"8 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyethersulfone/Chamomile Mixed Matrix Membrane for Methylene Blue Dye Removal from Wastewater 用于去除废水中亚甲蓝染料的聚醚砜/洋甘菊混合基质膜

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-22 DOI: 10.1134/s1070427224010130

Rana I. Raja, Khalid T. Rashid, Manal A. Toma

{"title":"Polyethersulfone/Chamomile Mixed Matrix Membrane for Methylene Blue Dye Removal from Wastewater","authors":"Rana I. Raja, Khalid T. Rashid, Manal A. Toma","doi":"10.1134/s1070427224010130","DOIUrl":"https://doi.org/10.1134/s1070427224010130","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Flux decline is one of the most significant defies ultrafiltration (UF) must overcome. One viable approach to address this issue involves the implementation of nano-additives into the membrane matrix. In this research, the potential of chamomile leaf nanoparticles (Chm NPs) as an eco-friendly material for use in UF membrane synthesis was explored. To better understand the impact of Chm on the production of PES UF membranes, a range of membranes were created by introducing varying amounts of Chm into the casting solution. The produced membranes were thoroughly evaluated, focusing on aspects such as porosity, pore size, hydrophilicity, membrane morphology, and UF performance. Manufactured PES/Chm membranes demonstrated significantly increased permeate water flux (PWF) (up to 367 L/m2 h), which was three times that of the pristine PES membrane (126 L/m2 h). Beside Methylene Blue dye (MB) rejection, it was obtained a high removal percent of about 94 %. Additionally, decreased contact angle (C.A.) for modified membranes (47%), compared with pristine PES membranes, all these results led to enhance the membrane permeate flux and rejection. The utilization of chamomile as a novel environmentally friendly addition holds significant potential in the production of UF membranes for wastewater treatment.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"46 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hypergolic Propellants Based on High-Test Hydrogen Peroxide and Organic Compounds 基于耐高温过氧化氢和有机化合物的超醇推进剂

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S1070427223100014

Sh. L. Guseinov, S. G. Fedorov, V. A. Kosykh, V. A. Vaulin

引用次数: 0

Development of Effective Depressor Additives to Diesel Fuel, Based on Copolymers of Stearyl Methacrylate with Monomers of Various Structures 以甲基丙烯酸硬脂酯与不同结构单体的共聚物为基础，开发有效的柴油减压添加剂

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S1070427223100026

E. V. Kolyakina, M. V. Pavlovskaya, Yu. S. Pronina, S. D. Zaitsev, D. F. Grishin

引用次数: 0

Current Status and Future Prospects of Air Quality and Management in Petroleum Refineries: A Review 炼油厂空气质量和管理的现状与前景：综述

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010014

Amjed R. Qarahgouli, Khalid A. Sukkar, Alaa M. Ali

{"title":"Current Status and Future Prospects of Air Quality and Management in Petroleum Refineries: A Review","authors":"Amjed R. Qarahgouli, Khalid A. Sukkar, Alaa M. Ali","doi":"10.1134/s1070427224010014","DOIUrl":"https://doi.org/10.1134/s1070427224010014","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The air quality in petroleum refineries is one of the most critical factors in the petroleum refining processes. Several parameters in the air usually have a direct influence on human health and the environment, including poisoning gases, vapors, and particulate matter (PMs). In the present study, the air quality was evaluated in petroleum refineries sites to provide more understanding of the effect of the presence of such polluted materials on the environment and the operator’s health in the refinery. It was found that petroleum refineries produce a series of fatal compounds such as sulfur compounds hydrocarbons (gases and vapors), and PM0.1, PM2.5, and PM10. All these materials have a solid impact on human health. It was found that they used many types of air filters, such as personal masks or central air filtration units reducing the concentration of such polluted material dramatically. Also, the results showed that the used crude oil (API) and sulfur contents are the main two important factors that reflect air quality. The high API crude oil with low sulfur compounds produces low polluted material in the air. Moreover, it was found that the modern refineries that used Euro-5 (eco-friendly design) produced fewer emissions with a cleaner environment in comparison with old versions of the refining design.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"78 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of an Analytical Approach to Study the Surface Morphology and Roughness Analysis of Commercial Hydrotreating CoMo-γAl2O3 Catalysts via Atomic Force Microscopy (AFM) Analysis 开发一种分析方法，通过原子力显微镜 (AFM) 分析研究商用加氢处理 CoMo-γAl2O3 催化剂的表面形态和粗糙度分析

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010051

Issam Mohammed Ali Shakir, Zaineb Falah Hassan

{"title":"Development of an Analytical Approach to Study the Surface Morphology and Roughness Analysis of Commercial Hydrotreating CoMo-γAl2O3 Catalysts via Atomic Force Microscopy (AFM) Analysis","authors":"Issam Mohammed Ali Shakir, Zaineb Falah Hassan","doi":"10.1134/s1070427224010051","DOIUrl":"https://doi.org/10.1134/s1070427224010051","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>In this work a fully analytical approach for atomic force microscopy (AFM) (non-contact mode) is proposed to determine surface roughness, morphology, and topography of two commercial CoMo-γAl2O3 catalysts (Ketjenfine 124-3E and Ketjenfine 165) that are used in hydrotreating process (HTP) in Iraqi refineries. All parameters of the AFM image (amplitude, hybrid and spatial parameters) were discussed with a new insight and a detailed description of how the nano-particles were built in and distributed in hypothetical multi layers based on mathematical calculations of volume and surface area based on regarding that each individual grain has a sphere-like shape of a specific diameter. A clear relationship between grain number and average diameter was noticed, due to the increase in grain average diameter of KF124-3E (143.47 nm) comparing to that of KF165 (120.21) leads to make the density of grain distribution for the latter is greater than that of KF124. Surface area of total grains of Ketjenfine 124-3E and Ketjenfine 165 were 8 919 303.275 and 8 031 267.809 nm2, respectively. Higher roughness average (Sa) value of catalyst KF165 (18.4 nm) means the reactants will have more opportunity for complete reaction. Root mean square (Sq) values were 8.16 nm for KF124-3E and 21.5 nm for KF165 indicating that KF165 is rougher than KF124-3E. Surface skewness of KF124-3E and KF165 were 0.00031, –0.168, respectively. For both hydrotreating catalysts the surface kurtosis value (Sku) was about ≤2.0 and the distribution curves is Platykurtic. Root means square slope (Sdq) for KF165 catalyst is 1.31 nm–1, which is approximately four times greater than that of KF124-3E (0.35 nm–1) indicating that KF165 has rougher surface profile.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"41 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acidic Influence on Geopolymerization: A Thorough Study Using HCl and Iraqi Kaolin 酸性物质对土工聚合的影响：使用盐酸和伊拉克高岭土进行的深入研究

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010105

Tuqa A. Jabar, Mohammed A. Alzuhairi, Mayyadah S. Abed

{"title":"Acidic Influence on Geopolymerization: A Thorough Study Using HCl and Iraqi Kaolin","authors":"Tuqa A. Jabar, Mohammed A. Alzuhairi, Mayyadah S. Abed","doi":"10.1134/s1070427224010105","DOIUrl":"https://doi.org/10.1134/s1070427224010105","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Recent advances have drawn the attention of many researchers in the creation of innovative catalysts that are not only effective but also cost-effective and ecologically benign. The large similarity between the geopolymers and zeolitic materials makes geopolymers suitable for catalytic applications. This research works on preparing geopolymer catalysts utilizing two different types of Iraqi kaolin (white and red kaolin) with six different mixes. Additionally, the hydrochloric acid (2M) treatment was conducted on the geopolymer base kaolin to increase surface area, and catalytic activity (improving the adsorption capacity) makes geopolymer more suitable for catalyst applications. The characterization of the geopolymer involved techniques such as XRD, XRF, FTIR, and BET. FTIR results showed changes in OH group structures (increase Brønsted & Lewis acid sites) essential for catalyst applications. XRD results indicated the presence of zeolite and Annite-phase along with amorphous phases. BET analysis of large increased surface area and pore size in acid-treated geopolymers. This research suggests the potential for improving inexpensive geopolymer catalysts, opening the door to cost-effective, sustainable, and high-performance catalysts for use in industries requiring porous materials and heavy oil processing, and paving the way for a greener and more environmentally conscious future.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"43 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biodiesel Production from Macroalgae: A Mini-Review 利用大型藻类生产生物柴油：微型综述

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010087

Wasan Hamza Hasan, Ali A. Jazie

{"title":"Biodiesel Production from Macroalgae: A Mini-Review","authors":"Wasan Hamza Hasan, Ali A. Jazie","doi":"10.1134/s1070427224010087","DOIUrl":"https://doi.org/10.1134/s1070427224010087","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The production of biodiesel from macroalgae using base catalysts is gaining interest in sustainable energy. Biodiesel generation from macroalgae uses several methods, but this research focuses on base catalysts. The paper begins with a detailed overview of bio-diesel production and its usefulness as an eco-friendly fossil fuel alternative. It then examines macroalgae and their role in biodiesel production. Macroalgae’s abundance, rapid growth, and lack of rivalry with food crops are all discussed in the article. Additionally, it solves extraction efficiency and production cost constraints. The review focuses on alkaline catalysts for macroalgae biodiesel production. The benefits of solid-base catalysts over liquid-base catalysts make them suitable biodiesel catalysts. These benefits include increased process efficiency, catalyst recovery, waste reduction, and environmental impact reduction. Overall, this offers an extensive examination of the process of producing biodiesel from macroalgae with base catalysts. This study emphasises the capacity of macroalgae as a renewable resource and offers valuable information on the methods to enhance efficiency and address environmental concerns for the effective use of this technology.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"101 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0