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Study of Sulfuric Acid and Hydrochloric Acid as Acid Wash Reagents to Remove Ag, Cu and Fe 硫酸和盐酸作为酸洗试剂去除银、铜、铁的研究
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-25 DOI: 10.31315/jmept.v4i1.9139
A. Saputra, Ravii Kato, Yogi Gautama Yanas, Fahrul Rozzi Usman
{"title":"Study of Sulfuric Acid and Hydrochloric Acid as Acid Wash Reagents to Remove Ag, Cu and Fe","authors":"A. Saputra, Ravii Kato, Yogi Gautama Yanas, Fahrul Rozzi Usman","doi":"10.31315/jmept.v4i1.9139","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.9139","url":null,"abstract":"In Indonesia there are several areas that have gold deposit reserves, one of which is located in Bakan Village, North Sulawesi. Gold ore in Bakan Village is extracted by heap leaching method by PT. J Resources Bolaang Mongondow. This study aims to analyze and compare 1 M sulfuric acid (H 2 SO 4 ) and 3% hydrochloric acid (HCL) as acid wash reagents to remove Ag, Cu and Fe. This acid wash study was carried out using the bottle roller test method using two different reagents, sulfuric acid and hydrochloric acid. The results of the research on the acid wash process The results showed that the effective reagent in dissolving base metals was 1 M sulfuric acid (H 2 SO 4 ) with the solubility percentage of each element as follows Ag 0.3%, Cu 20.2%, Fe 60.4%. Meanwhile, 3% hydrochloric acid was only able to dissolve Ag 0.4%, Cu 4.3% and 4.3% Fe.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117145746","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
Analysis of Penetrant Test Results of S355J2 Steel Welding Connections for Qualification Welding S355J2钢焊接接头合格焊接渗透试验结果分析
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-20 DOI: 10.31315/jmept.v4i1.7869
Irsyadi Farhan Efriandi
{"title":"Analysis of Penetrant Test Results of S355J2 Steel Welding Connections for Qualification Welding","authors":"Irsyadi Farhan Efriandi","doi":"10.31315/jmept.v4i1.7869","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.7869","url":null,"abstract":"NDT (Non Destructive Test) is a form of testing perfomed on materials or objects without causing permanent damage to the material or objects. NDT can be used for testing materials such as concrete, steel, iron, and other. This journal aims to determine the Penetrant Test testing process on S355J2 steel welding results to determine the qualifications of GMAW Welders. Welding testing by a certified welder using GMAW welding. NDT testing was conducted in the form of a visual test and a Penetrant test when testing the weld results. The obtained data showed the welder PT. INKA is qualified with the terms and standards that have been set by the company, namely AWS D1.1 and ASTME E 165. Therefore, the Welder can be involved in the current project.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129870794","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
Implementation of Sodium Hydrosulfate (NaHS) Flotation with F83 and F515 on Mass Recovery of Gold Ore 氢硫酸钠(NaHS)浮选F83和F515在金矿石质量回收中的应用
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-16 DOI: 10.31315/jmept.v4i1.9338
Lintang Larasati Adi Putri
{"title":"Implementation of Sodium Hydrosulfate (NaHS) Flotation with F83 and F515 on Mass Recovery of Gold Ore","authors":"Lintang Larasati Adi Putri","doi":"10.31315/jmept.v4i1.9338","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.9338","url":null,"abstract":"There exist more and more gold mines in Indonesia, especially those that have just been started. It is indispensable to do test work to decide the process flow that will be utilized. Reagent usage tests on the flotation of gold ore were carried out to determine the mass recovery obtained by using a specific reagent and to determine which reagent is more optimal and profitable for further test work. Flotation is carried out using mechanical flotation with F83 and F515 as collector and frother respectively along with the addition of NaHS as modifier or sulfidization reagent.. Based on the flotation that has been conducted, it is known that the use of NaHS enhances the mass recovery obtained. Moreover, compared to the usage of other reagents, flotation with NaHS gives a slightly larger mass recovery with an increase around 2-3%. This indicates that the gold ore used is ores that have been oxidized More in-depth test work is required to get the optimal dose to obtain considerable mass recovery.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115608881","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
Experimental Analysis of Magnetic Particle Inspection on S355J2 Steel Weld Joints S355J2钢焊缝磁粉检测试验分析
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-12 DOI: 10.31315/jmept.v4i1.7813
Muhammad Apriliansyah
{"title":"Experimental Analysis of Magnetic Particle Inspection on S355J2 Steel Weld Joints","authors":"Muhammad Apriliansyah","doi":"10.31315/jmept.v4i1.7813","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.7813","url":null,"abstract":"NDT (Non-Destructive Test) is a form of testing carried out on materials or objects without causing permanent damage to these materials or objects. This study aims to determine the NDT Magnetic Particle Inspection testing process that is carried out and find out the results of the inspection of S355 J2 steel specimens with the NDT Magnetic Particle Inspection test method as the basis for determining the GMAW Welder Qualification. Welding of S355 J2 Steel is performed by a certified welder using GMAW welding using a single V-butt joint at an angle of 30 degrees. NDT Visual Test and Magnetic Particle Inspection are carried out during material testing. Data & output shows welder PT. INKA qualified with the standards set by the company, namely AWS D1.1 and ASTME E 709. So the Welder can be allowed to work on a Project because it is considered to have met the required Welder qualification standards.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"41 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131873193","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
Sigma Phase Effect on Pitting Corrosion of Super Duplex Stainless Steel UNS S32750 超级双相不锈钢S32750点蚀的Sigma相效应
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-05 DOI: 10.31315/jmept.v4i1.10179
Karyanto Herlambang, Aldyno Henry
{"title":"Sigma Phase Effect on Pitting Corrosion of Super Duplex Stainless Steel UNS S32750","authors":"Karyanto Herlambang, Aldyno Henry","doi":"10.31315/jmept.v4i1.10179","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.10179","url":null,"abstract":"The welding process on Super Duplex Stainless Steel material can cause decreased corrosion resistance of Super Duplex Stainless Steel material. This process occurs a lot in the heat treatment process piping and pipeline. This decrease in corrosion resistance occurs due to the formation of sigma phase precipitation due to heat treatment of the metal. This research will determine the relationship between the ratio of heat input cold pass: the ratio of heat input root pass to the percentage of sigma phase and the relationship between the percentage of sigma phase to the weight loss value. accompanied by the formation of pitting corrosion on UNS S32750 Super Duplex Steel. Test Coupon (TC) specimens obtained from as-welded with the ratio of heat input cold pass : ratio of heat input root pass (TC-1=74%; TC-2=70%; TC-3=68%; TC-4=61 %) which was then tested for microstructure. The percentage of sigma phase obtained is TC-1 = 13.96%, TC-2 = 8.33%, TC-3 = 8.33%, and TC-4 = 4.38%). The corrosion resistance test yielded weight loss values (TC-1 = 14.67 gr/m2, TC-2 = 11.71 gr/m2, TC-3 = 1.27 gr/m2, and TC-4 = 2.71 gr/m2). This study concludes that the formation of the sigma phase will be directly proportional to the value of the root pass heat input ratio: the cold pass heat input ratio. The higher the percentage of sigma phase, the higher the weight loss value in the corrosion test, which will cause pitting corrosion.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133147606","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
Experimental Study on the Corrosion Rate Influence Caused by Seawater on Aircraft Structures 海水对飞机结构腐蚀速率影响的实验研究
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-05 DOI: 10.31315/jmept.v4i1.7560
Marga Dharma Prayoga, H. Susanto, Muhammad Luqman Bukhori
{"title":"Experimental Study on the Corrosion Rate Influence Caused by Seawater on Aircraft Structures","authors":"Marga Dharma Prayoga, H. Susanto, Muhammad Luqman Bukhori","doi":"10.31315/jmept.v4i1.7560","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.7560","url":null,"abstract":"Airplanes are a very fast and time efficient means of transportation. In Indonesia itself, because the country is an archipelago and has a tropical climate, rainwater and seawater are the main problems in the aviation world, this is evidenced by the corrosion that occurs in every aircraft maintenance. Factors that cause corrosion and corrosion rate are acidity, environmental conditions, and materials used. The material that is often used in aircraft is 2024 T-3 aluminum material which is strong, lightweight, and also resistant to corrosion, but because 2024 T-3 aluminum has several mixtures of other materials such as iron, copper, and copper,other materials, then aluminum can also be exposed to corrosion and corrosion rates. Corrosion and corrosion rate can be determined using the weight loss method which is used to measure the rate of corrosion that occurs, it is proven in 72 hours the material has experienced a corrosion rate of 0.002 mpy and the corrosion rate continues to increase every day, and to see the corrosion that occurs on the material used micro photos to see the type of corrosion. But the weight loss method is not very accurate because the weight loss that occurs from the material is the result of abrasion when sanded. In addition, seawater is the biggest influence on the corrosion rate problem when compared to rainwater.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133838751","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
Design Of Lifting Aid Materials To Optimize Waste Loading Into Sealed Containers 提升辅助材料的设计，以优化垃圾装入密封容器
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-08-05 DOI: 10.31315/jmept.v4i1.10185
Supriyadi Junus
{"title":"Design Of Lifting Aid Materials To Optimize Waste Loading Into Sealed Containers","authors":"Supriyadi Junus","doi":"10.31315/jmept.v4i1.10185","DOIUrl":"https://doi.org/10.31315/jmept.v4i1.10185","url":null,"abstract":"Waste management in a field from 2016 to 2017 carried out using closed containers can only load 10 Jumbo Bags with an average weight of 6.74 tons per container. While the waste management cost component, 51.7% is influenced by the cost of transportation through containers. The problem of loading waste during handling is greatly influenced by the lifting aids used for loading so that it can maximize the loading of waste into closed containers which are transportation tools used to transport waste. This study will focus on designing lifting aid materials for loading waste into sealed containers.. The material used is 6\" sch 40 pipe and 3“sch 40 pipe. The design was first simulated using stress analysis software to determine the threshold of yield strength of the material used. After production of the lifting aid, the welded joints was tested with magnetic testing which shows no defect.. The lifting aid is able to optimize the loading of waste as much as 1968 tons using 130 containers where each container contains 15 jumbo bags and weighs 15.14 tons. This can reduce the number of containers that are a major cost component in transporting waste.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"1996 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128950559","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
Analisis Pengujian Cladding pada Aluminium Alloy 2024 Menggunakan Metode Eddy Curent di PT Garuda Maintenance Facility AeroAsia
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-02-23 DOI: 10.31315/jmept.v3i2.8781
Agris Setiawan, Taufan Triandika, Dyah Probowati
{"title":"Analisis Pengujian Cladding pada Aluminium Alloy 2024 Menggunakan Metode Eddy Curent di PT Garuda Maintenance Facility AeroAsia","authors":"Agris Setiawan, Taufan Triandika, Dyah Probowati","doi":"10.31315/jmept.v3i2.8781","DOIUrl":"https://doi.org/10.31315/jmept.v3i2.8781","url":null,"abstract":"Non-destructive testing(NDT)  adalah pengujian material untuk menentukan kualitas dan integritas material atau elemen struktur tanpa memengaruhi kemampuan untuk menjalannya fungsinya. NDT itu sendiri memiliki beberapa metode pengujian, yaitu radiograph testing, eddy current testing, thermal testing, penetrant testing, ultrasonic testing, dan visual testing. Metode eddy curent biasanya digunakan untuk melihat crack maupun mengetahui perbedaan suatu material melalui nilai konduktivitasnya. Pada penelitian ini dimaksudkan untuk menanalisis dari teori yang ada dengan yang terjadi dilapangan, dengan menambahkan variasi ketebalan pada Aluminium clad sheet 2024. Cladding test sangat umum dilakukan di industri aviasi untuk menghindari, mengetahui lebih awal dan menanggulangi kecelakaan yang diakibatkan korosi karena cladding sudah hilang.","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129680478","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
PENGARUH VARIASI KUAT ARUS PENGELASAN TERHADAP BERAT DEPOSIT LAS PER MILIMETER PADA PENGELASAN TEST RING ASTM A694 GR F65 DAN PIPA DNVGL SMLS 450 SFPDU MOD MENGGUNAKAN PROSES PENGELASAN SMAW DI PT. MCDERMOTT INDONESIA – BATAM
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-02-22 DOI: 10.31315/jmept.v3i2.6584
Chaerul Umam, Untung Sukamto
{"title":"PENGARUH VARIASI KUAT ARUS PENGELASAN TERHADAP BERAT DEPOSIT LAS PER MILIMETER PADA PENGELASAN TEST RING ASTM A694 GR F65 DAN PIPA DNVGL SMLS 450 SFPDU MOD MENGGUNAKAN PROSES PENGELASAN SMAW DI PT. MCDERMOTT INDONESIA – BATAM","authors":"Chaerul Umam, Untung Sukamto","doi":"10.31315/jmept.v3i2.6584","DOIUrl":"https://doi.org/10.31315/jmept.v3i2.6584","url":null,"abstract":"Analysis of \"The Effect of Welding Current Strength Variations on Welding Deposit Weight Per Millimeter In Welding Test Ring ASTM A694","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116678534","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
Pengaruh Pelapisan Aluminida Paduan Ti-47Al-2Nb-2Cr-0,5Zr-0,5Y terhadap Oksidasi Siklik pada Temperatur 900, 1000, dan 1100oC 合金铝涂层对乙47al - 2nb - 2r - 5zr - - 5y在900、1000和1100oC温度下对循环氧化的影响
Journal of Metallurgical Engineering and Processing Technology Pub Date : 2023-02-20 DOI: 10.31315/jmept.v3i2.8582
Wanidya Niimmallaili Hadining, E. Basuki
{"title":"Pengaruh Pelapisan Aluminida Paduan Ti-47Al-2Nb-2Cr-0,5Zr-0,5Y terhadap Oksidasi Siklik pada Temperatur 900, 1000, dan 1100oC","authors":"Wanidya Niimmallaili Hadining, E. Basuki","doi":"10.31315/jmept.v3i2.8582","DOIUrl":"https://doi.org/10.31315/jmept.v3i2.8582","url":null,"abstract":"","PeriodicalId":196240,"journal":{"name":"Journal of Metallurgical Engineering and Processing Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126908058","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
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