Hungarian Journal of Industry and Chemistry最新文献

Extraction of the Food Additive Tartaric Acid Using Octanol, Methyl Isobutyl Ketone, Kerosene, Mustard Oil, And Groundnut Oil 使用辛醇、甲基异丁基酮、煤油、芥子油和花生油提取食品添加剂酒石酸

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-11-08 DOI: 10.33927/hjic-2023-13

Lalitha Bhanot, Anuj Kumar, Diwakar Z. Shende, Kailas S. Wasewar

{"title":"Extraction of the Food Additive Tartaric Acid Using Octanol, Methyl Isobutyl Ketone, Kerosene, Mustard Oil, And Groundnut Oil","authors":"Lalitha Bhanot, Anuj Kumar, Diwakar Z. Shende, Kailas S. Wasewar","doi":"10.33927/hjic-2023-13","DOIUrl":"https://doi.org/10.33927/hjic-2023-13","url":null,"abstract":"Tartaric acid (TA) is a dicarboxylic acid found in bananas, grapes, apples, papaya, cherries, pineapple, pears, mangoes, and tamarind. Due to its widespread use in the food, cosmetic and pharmaceutical industries, it is an essential carboxylic acid. Tartaric acid is produced commercially from wine-industry byproducts and is also present in the industry's effluent. Separating tartaric acid from wastewater is challenging. In this research, tartaric acid was separated from the aqueous phase using chemical and organic solvents such as groundnut oil, mustard oil, kerosene, octanol, and methyl isobutyl ketone (MIBK). Experiments were conducted at 298 K to determine the extraction efficiency (E%) and distribution coefficient (KD). The maximum extraction efficiencies of tartaric acid were found to be 49.01, 25.62, 16.73, 15.89 and 14.29% when using MIBK, octanol, kerosene, mustard oil and groundnut oil, respectively. The results demonstrate the significance of solvent choice in the extraction of tartaric acid with solvents such as MIBK and octanol being more effective at extracting TA from aqueous solutions. On the other hand, the sustainability of the method for separating tartaric acid was highlighted when organic solvents were applied.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of Composite Pipelines Damaged by Corrosion: Control by Non-Destructive Testing 研究受腐蚀破坏的复合管道：通过无损检测进行控制

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-11-08 DOI: 10.33927/hjic-2023-11

Samir Lecheb, Abdelhakim Daoui, Chahira Brihmat, H. Mechakra, A. Chellil, Brahim Safi, H. Kebir

{"title":"Study of Composite Pipelines Damaged by Corrosion: Control by Non-Destructive Testing","authors":"Samir Lecheb, Abdelhakim Daoui, Chahira Brihmat, H. Mechakra, A. Chellil, Brahim Safi, H. Kebir","doi":"10.33927/hjic-2023-11","DOIUrl":"https://doi.org/10.33927/hjic-2023-11","url":null,"abstract":"Since the degradation of material properties and defects often occur in engineering structures due to fatigue loading, it is necessary to develop non-destructive testing methods to assess the safety of engineering structures. In the aerospace industry in particular, the demand for early crack detection to ensure the safety and durability of engineered structures is growing. The automated inspection of pipelines using non-destructive testing (NDT) is desirable because visual inspections are not always consistent. In addition, automated inspections reduce the cost of the inspection process and improve its quality. Since the identification of cracks in engineering materials is very valuable for understanding initial and slight changes in the mechanical properties of materials in complex working environments, numerical simulations of propagating Lamb waves in a cracked pipeline were performed to study their non-linear behavior. Finally, the shapes of all the signal responses can be used to identify the depth, length, shape and orientation of cracks. The elapsed time before signal responses are received varies as a function of the orientation of a crack.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139283018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Heat Treatment on the Structure of Self-Assembled Undecenyl Phosphonic Acid Layers Developed on Different Stainless Steel Surfaces 热处理对不同不锈钢表面形成的自组装十一烯基膦酸层结构的影响

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-11-08 DOI: 10.33927/hjic-2023-12

Éva Kocsisné Pfeifer, János Mink, I. Gyurika, J. Telegdi

{"title":"Effect of Heat Treatment on the Structure of Self-Assembled Undecenyl Phosphonic Acid Layers Developed on Different Stainless Steel Surfaces","authors":"Éva Kocsisné Pfeifer, János Mink, I. Gyurika, J. Telegdi","doi":"10.33927/hjic-2023-12","DOIUrl":"https://doi.org/10.33927/hjic-2023-12","url":null,"abstract":"Deterioration caused by corrosion is well known, which can destroy metallic and non-metallic materials alike. Dissolved inhibitors of bionic micro- and nanocoatings can decrease the degree of undesirable corrosion in various ways. In this paper, a self-assembled molecular layer formed from undecenyl phosphonic acid developed on two different steel surfaces was the subject of our experiments. The influence of the metal composition, layer-forming conditions and post-heat treatment was documented by wettability measurements as well as surface roughness parameters; the change in surface morphology caused by the formation of a layer in addition to post-heat treatment was visualized by an atomic force microscope (AFM); and infrared spectroscopy elucidated the bindings of the amphiphilic molecules involved in the self-assembled layer to the metal surface as well as to each other. Over the course of the self-assembling process, the –P(O)(OH)2 head groups can fix the amphiphilic molecule to the solid surface through the metal oxide-hydroxide layer. The hydrophobic alkenyl chains remain together as a result of special forces, namely hydrogen bonds and van der Waals forces, between them. The double bond at the end of the alkenyl chain disturbs how well the layer is ordered. To improve the homogeneity of the molecular layer and increase its level of compactness, the self-assembled molecular (SAM) layer was heat treated to achieve a more compact molecular film that can perfectly cover the metal surface.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of a Highly Concentrated Gold Solution from Aqua Regia Gold Leachate Using Sugarcane Bagasse Nanoparticles 利用甘蔗渣纳米颗粒从 Aqua Regia 金浸出液中生产高浓度金溶液

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-11-01 DOI: 10.33927/hjic-2023-15

O. Teniola, Abraham A. Adeleke, Simeon Ademola Ibitoye, Moshood Dehinde Shittu

{"title":"Production of a Highly Concentrated Gold Solution from Aqua Regia Gold Leachate Using Sugarcane Bagasse Nanoparticles","authors":"O. Teniola, Abraham A. Adeleke, Simeon Ademola Ibitoye, Moshood Dehinde Shittu","doi":"10.33927/hjic-2023-15","DOIUrl":"https://doi.org/10.33927/hjic-2023-15","url":null,"abstract":"This study produced a highly concentrated gold solution using nanoparticles (NPs) synthesized from sugarcane bagasse as an adsorbent for gold(III) recovery from an aqua regia gold leached lean solution. A 100 kg sample of gold ore collected from a mining site in Iperindo was concentrated. Mineralogical characterization and a fire assay test of the ore were carried out. Atmospheric and agitation leaching were conducted using aqua regia. Sugarcane bagasse NPs were prepared and used to study the gold(III) adsorption kinetics. Gold-loaded sugarcane bagasse NPs were desorbed in a 4 M aqua regia solution. The results revealed that the ore has a low water retention capacity which renders it friable. A microscopic examination established the presence of gold particles and pyrite in the ore. Ore leaching was eminently favoured by agitation yielding a weight loss of 6.3 % when an acid concentration of 4 M was used, the temperature was 90 ºC and the leaching time was 30 minutes. Synthesized nanocellulose was able to adsorb gold(III) from the leachate optimally with the following process parameters: 14 mL/g of adsorbent, 106.2 minute-long contact time, a temperature of 56 ºC and an agitation rate of 45 rpm when the concentration of leachate was 84 mg/L. The adsorption efficiency of the sugarcane bagasse NPs is comparable with that of commercial activated carbon, namely 92 and 95 %, respectively. The study concluded that NPs synthesized from sugarcane bagasse could be effectively used when upgrading gold and in purification processes.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139301540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Tic on Density and Microstructure of Al2O3 Ceramics Doped with Nb2O5 and Lif Tic 对掺杂 Nb2O5 和 Lif 的 Al2O3 陶瓷密度和微观结构的影响

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-11-01 DOI: 10.33927/hjic-2023-14

P. H. D. da Silveira, A. Gomes

{"title":"Influence of Tic on Density and Microstructure of Al2O3 Ceramics Doped with Nb2O5 and Lif","authors":"P. H. D. da Silveira, A. Gomes","doi":"10.33927/hjic-2023-14","DOIUrl":"https://doi.org/10.33927/hjic-2023-14","url":null,"abstract":"Ceramic matrix composites are widely studied in the ballistic sector due to their high hardness, fracture toughness, and improved ballistic performance in multilayer shielding systems. However, the presence of dopants in ceramics can pose challenges during processing and potentially compromise the final properties of the sintered material. This study focused on the ceramic processing of Al2O3-based ceramic matrix composites by adding 4 wt.% Nb2O5 (niobium oxide), 0.5 wt.% LiF (lithium fluoride), and 38.5 wt.% TiC (titanium carbide). The composites were produced using cold uniaxial pressing and conventional sintering at 1400 °C for 3 h. The composites were characterized using Archimedes’ principle and scanning electron microscopy (SEM). The results revealed that the samples to which TiC was added exhibited low initial densities, indicating that the applied pressure of 50 MPa during cold pressing was insufficient to adequately densify the green bodies. Moreover, the presence of TiC led to a significant reduction in densification, making it challenging to apply a conductive coating for SEM analysis. Adjustments to the intensity of the electron beam were necessary to conduct the analysis successfully. Conversely, the samples to which TiC was not added exhibited high density values in the green state and yielded consistent results after sintering in line with previous research, indicating a satisfactory degree of sintering in the absence of TiC. These ﬁndings highlight the importance of carefully considering the addition of TiC in ceramic matrix composites during processing, which can have a signiﬁcant impact on densiﬁcation and subsequent material properties. The results contribute to the understanding of processing parameters with regard to the production of ceramic composites with desirable characteristics for ballistic applications.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139302081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Different Accelerators on the Corrosion Protection of a Surface Coating on Spheroidal Graphite Cast Iron (Ductile Iron) 不同促进剂对球墨铸铁表面涂层防腐性能的影响

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-07-04 DOI: 10.33927/hjic-2023-07

B. Herbáth, K. Kovacs, M. Jakab

引用次数: 1

Self-Diffusion Coefficient of Water in the Presence of Alkali Halide Ions 碱卤化物离子存在下水的自扩散系数

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-07-04 DOI: 10.33927/hjic-2023-10

A. Baranyai

{"title":"Self-Diffusion Coefficient of Water in the Presence of Alkali Halide Ions","authors":"A. Baranyai","doi":"10.33927/hjic-2023-10","DOIUrl":"https://doi.org/10.33927/hjic-2023-10","url":null,"abstract":"The self-diffusion coefficient of water in aqueous solutions of alkali halides at different concentrations was studied using the polarizable BK3 model of water [1]. As ion potentials, initially the alkali halide force field fitted to this water potential by the solvation free energy, ion-water clusters as well as, for the purpose of crosschecking, to the ambient crystal energy and density was investigated. It was found that the strength of attraction between the central ion and the water molecules in the hydration shell is stronger than in reality, which manifests itself in the reduced mobility of water. For small ions, this discrepancy is small. By omitting the dipolar polarization of larger ions, the estimates could be improved. Similarly, increasing the size of the anions within reasonable limits also enhances the results but the structural breaking effect is insufficient. If the relative permittivity of water is smaller than that measured experimentally, typically ionic charges in non-polarizable water models can be decreased to recover the correct semi-macroscopic Coulomb energy. Since our polarizable water model reasonably estimates the relative permittivity, smaller ionic charges were used to quantify the differences in the strengths of ion-water attraction. Our estimates of self-diffusion in aqueous solutions by varying the concentration of ions are presented and discussed for LiCl, NaCl, NaBr, NaI, RbF and RbI.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43310528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Regional Differences in the Organic Fraction of Municipal Solid Waste in Hungary 匈牙利城市固体废物有机成分的区域差异调查

IF 0.2

Hungarian Journal of Industry and Chemistry Pub Date : 2023-07-04 DOI: 10.33927/hjic-2023-09

E. Toth, Janka Bobek-Nagy, R. Kurdi

{"title":"Investigation of Regional Differences in the Organic Fraction of Municipal Solid Waste in Hungary","authors":"E. Toth, Janka Bobek-Nagy, R. Kurdi","doi":"10.33927/hjic-2023-09","DOIUrl":"https://doi.org/10.33927/hjic-2023-09","url":null,"abstract":"Municipal solid waste management is crucial in terms of the environment, sustainability and the circular economy. The directly landfilled organic fraction of municipal solid waste (OFMSW) offers a lot of potential with regard to energy recovery or as a soil substrate. In this study, the regional differences in Hungary according to various living structures and conditions (villages and urban areas) were demonstrated to provide a foundation for further usage or treatment. The fact that the biological fraction (leaves, kitchen waste and fine soil-like material) of OFMSW from typically urban areas like the examined city of Pécs is larger than in a rural area, e.g. Marcali District, was highlighted. On the other hand, the OFMSW from rural areas contains more hazardous materials such as medicinal ampoules due to the lack of possibilities to dispose of them suitably. After evaluating the composition of the OFMSW, the directly landfilled quantity of MSW could be further reduced. In conclusion, according to the high proportions of plastic and paper as well as its promising heating value, the largest particle size fraction (>4 cm) could be utilized as refuse-derived fuel (RDF) and the finer, organic material-rich fraction as a soil substitute following further purification.","PeriodicalId":43118,"journal":{"name":"Hungarian Journal of Industry and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49558695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 a Digital Twin for Gas Mixing in a Generator 用于发电机中气体混合的数字孪晶的开发

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Hungarian Journal of Industry and Chemistry Pub Date : 2023-07-04 DOI: 10.33927/hjic-2023-06

O. Shypul, V. Garin, Denys Tkachenko, Sergiy Plankovskyy, O. Tryfonov

引用次数: 0

A Survey of the Readiness and Maturity Level of Industry 4.0 at Twenty Companies in Pakistan 巴基斯坦20家公司工业4.0的准备程度和成熟度调查

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Hungarian Journal of Industry and Chemistry Pub Date : 2023-07-04 DOI: 10.33927/hjic-2023-08

Uzair Khan, Wasim Ahmad, Muhammad Imran

引用次数: 0