REACTOR: Journal of Research on Chemistry and Engineering最新文献

Intensifikasi Sintesis Diasetin dan Triasetin Melalui Esterifikasi Gliserol Dengan Katalis Berbasis Daun Bambu 利用竹叶基催化剂通过甘油酯化强化二乙酸乙酯和三乙酸乙酯的合成

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2024-07-03 DOI: 10.52759/reactor.v5i1.126

Maysarah Fitri, Marwan Marwan, Y. Syamsuddin, Nanda Suriaini

{"title":"Intensifikasi Sintesis Diasetin dan Triasetin Melalui Esterifikasi Gliserol Dengan Katalis Berbasis Daun Bambu","authors":"Maysarah Fitri, Marwan Marwan, Y. Syamsuddin, Nanda Suriaini","doi":"10.52759/reactor.v5i1.126","DOIUrl":"https://doi.org/10.52759/reactor.v5i1.126","url":null,"abstract":"The synthesis of acetins from glycerol is achieved through esterification assisted by a solid acid catalyst and microwave irradiation. Diacetin and triacetin, suitable as biofuel additives, are produced using biogenic silica from bamboo leaves, which is chemically activated with strong acid and calcined. No research has utilized silica catalysts derived from bamboo leaf ash to produce diacetin and triacetin. This study aims to employ bamboo leaf-based heterogeneous catalysts to enhance triacetin selectivity, simplify product purification and separation, and enable catalyst reuse. Furthermore, microwave application can accelerate the reaction time. The best total selectivity for diacetin and triacetin was obtained under operating conditions of 3% catalyst concentration, a 1:6 molar ratio, and 60 minutes of microwave irradiation. The yields of diacetin and triacetin under these conditions were 65.80% and 18.70%, respectively. GC-MS and FTIR analysis confirm the presence of monoacetin, diacetin, and triacetin, with a total selectivity for diacetin and triacetin of 84,50%.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"92 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682738","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

Karakterisasi Performa Adsorben Cangkang Telur Pada Proses Penyerapan Logam Merkuri (Hg) 蛋壳吸附剂在汞（Hg）金属吸附过程中的性能表征

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2024-07-02 DOI: 10.52759/reactor.v5i1.125

Miftahurrahmah Miftahurrahmah, Ellysa Ellysa, Suhendrayatna Suhendrayatna

{"title":"Karakterisasi Performa Adsorben Cangkang Telur Pada Proses Penyerapan Logam Merkuri (Hg)","authors":"Miftahurrahmah Miftahurrahmah, Ellysa Ellysa, Suhendrayatna Suhendrayatna","doi":"10.52759/reactor.v5i1.125","DOIUrl":"https://doi.org/10.52759/reactor.v5i1.125","url":null,"abstract":"Mercury (Hg) is a highly toxic heavy metal with no biological benefits, posing significant environmental and health risks upon exposure. This study investigates the adsorption characteristics of chicken eggshell-derived adsorbents for the removal of Hg from aqueous solutions. The adsorbent preparation involved washing, drying, calcination, and KOH activation. Results indicated that the 170-mesh size adsorbent exhibited the highest adsorption efficiency, achieving a 99.70% removal rate of Hg. adsorption capacity tests revealed values ranging from 79,90 to 88,90 mg/g, conforming to the Indonesian National Standard (SNI) for activated carbon. Functional group analysis using Fourier-Transform Infrared Spectroscopy (FT-IR) identified a significant increase in aldehyde and ketone groups post-activation. The adsorption process reached equilibrium within 90 minutes, with optimal removal efficiency observed at an initial Hg concentration of 3,0 mg/L. These findings suggest that chicken eggshell-based adsorbents are a cost-effective and efficient solution for mitigating Hg contamination in wastewater, offering a sustainable alternative to conventional methods.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"29 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685225","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 Pengendalian Kebisingan Melalui Pemetaan Untuk Mengurangi Paparan Populasi di Area Pelabuhan Batu Ampar Kota Batam 通过测绘减少峇淡市峇都安帕尔港区人口暴露的噪音控制分析

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2023-06-27 DOI: 10.52759/reactor.v4i1.88

Ahmad Viqri, Shinta Indah, Vera Surtia Bachtiar

{"title":"Analisis Pengendalian Kebisingan Melalui Pemetaan Untuk Mengurangi Paparan Populasi di Area Pelabuhan Batu Ampar Kota Batam","authors":"Ahmad Viqri, Shinta Indah, Vera Surtia Bachtiar","doi":"10.52759/reactor.v4i1.88","DOIUrl":"https://doi.org/10.52759/reactor.v4i1.88","url":null,"abstract":"Batu Ampar Port is the largest loading and unloading port of the three existing loading and unloading port facilities in Batam and the largest port for manufactured goods used by companies to supply the industrial sector in Batam. In addition to having a positive impact, the Batu Ampar port also has a negative impact in the form of a decrease in environmental quality, especially the noise level generated by activities in the Batu Ampar Port area. In this study the noise sampling process used the Svantek tool, sampling was carried out for 24 hours with a time limit of 24 intervals, then sampling was carried out for 10 minutes at each time interval. The research results obtained were that from all sampling points the highest noise was in the East Pier area of 70 – 78.5 dB(A) at 08:00 – 23:00 WIB. While the area with the lowest noise level is in the BPJS flat area of 54.7 – 73.5 dB(A) at 06:00 – 05:00 WIB. It can be concluded that many of the noise values obtained exceed the quality standards in accordance with Kepmen LH No. 48 of 1996. This was due to several factors, namely loading and uploading of very dense containers which resulted in more and more work activities. Noise elimination measures in the Batu Ampar port area are important to do considering the results of noise measurements still exceed the quality standards, Barriers are one of the technologies that can be applied to reduce noise in the Batu Ampar port, Batam, both natural and artificial barriers, so the Batu Ampar port noise problem can be solved.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139368239","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 Penambahan Ekstrak Jeruk Purut (Cytrus hitrix D.C) Sebagai Koagulan Alami Terhadap Karakteristik Karet 添加卡菲尔石灰提取物（Cytrus hitrix D.C）作为天然凝固剂对橡胶特性的影响

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2023-06-23 DOI: 10.52759/reactor.v4i1.85

Wika Atro Auriyani, Feerzet Achmad, Deviany Deviany, Muhammad Ikhwan Ardian, Rizky Dimas Prasetyo, Aldillah Herlambang, M. Musa

{"title":"Pengaruh Penambahan Ekstrak Jeruk Purut (Cytrus hitrix D.C) Sebagai Koagulan Alami Terhadap Karakteristik Karet","authors":"Wika Atro Auriyani, Feerzet Achmad, Deviany Deviany, Muhammad Ikhwan Ardian, Rizky Dimas Prasetyo, Aldillah Herlambang, M. Musa","doi":"10.52759/reactor.v4i1.85","DOIUrl":"https://doi.org/10.52759/reactor.v4i1.85","url":null,"abstract":"Natural rubber is a plantation commodity that has a significant role in the country's economy. This study aims to determine the effect of the natural coagulant extract of kaffir lime with centrifugation and non-centrifugation treatment on the coagulation process, pH and coagulation time, characteristics of rubber clone IRR 118 and comparison of the quality of rubber with 2% formic acid chemical coagulant. The volume of coagulant used was 75 mL mixed with 150 mL of latex, so that coagulation occurred and produced coagulum. Then the resulting coagulum is analyzed for the characteristics of the rubber to determine the quality of the rubber. Characteristic analysis carried out was Dry Rubber Content (DRC), Initial Plasticity (Po), Plasticity Retention Index (PRI), Mooney Viscosity, ash content, impurities content, volatile matter content, and nitrogen content. The results showed that the natural coagulant extract of kaffir lime could coagulate latex, lowering the pH of latex thereby speeding up coagulation time. From the rubber characteristic test using kaffir lime natural coagulant it complies with SNI 06-1903-2017 SIR 20. The quality of rubber produced from using kaffir lime natural coagulant extract as a coagulant can equate the quality of rubber produced by using 2% formic acid chemical coagulant, but coagulant The natural ingredients used have drawbacks, namely the availability of seasonal fruit, and the need for treatment before being used as a coagulant.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139368880","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

Evaluasi Konstanta Kecepatan Ekstraksi Beta (ß)-Karoten Berbasis Campuran Pelarut Aseton dan Dietil Eter 基于丙酮和二乙醚混合溶剂的 Beta (ß)-Carotene 提取速度常数评估

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2023-06-09 DOI: 10.52759/reactor.v4i1.69

Nirmala Johar, Mega Mustikaningrum

{"title":"Evaluasi Konstanta Kecepatan Ekstraksi Beta (ß)-Karoten Berbasis Campuran Pelarut Aseton dan Dietil Eter","authors":"Nirmala Johar, Mega Mustikaningrum","doi":"10.52759/reactor.v4i1.69","DOIUrl":"https://doi.org/10.52759/reactor.v4i1.69","url":null,"abstract":"Research on the extraction of ß-carotene has been carried out intensively in recent years, considering the wide application of ß-carotene compounds, especially in the pharmaceutical and health fields. In the health sector, β-carotene has antioxidant compounds that can neutralize unstable molecules called free radicals. When the number of free radicals is too high in the body, it can cause cell and tissue damage which is known as oxidative stress. So the consumption of β-carotene should be increased. Various technologies are used for the isolation of ß-carotene from raw materials, such as maceration, soxhlet, ultrasound-assisted extraction (UAE), pressurized liquid extraction (PLE) and supercritical liquid extraction (SFE). This study uses the maceration method with the consideration that the energy used is relatively low and refers to the heat-resistant nature of β-carotene. The purpose of this study was to analyze the addition of co-solvent diethyl ether to acetone solvent to the value of the extraction rate constant (k). In this case, the addition of a co-solvent can help transport β-carotene to the solvent effectively by increasing the yield of β-carotene produced. Quantitative analysis was carried out using calculations based on mass balance, pseudo-second-order, and Peleg to then conclude which model is by the resulting data. The final yield of β-carotene was 34.395; 103.287 and 108.974 µg/g for diethyl ether, acetone, and a mixture of acetone with diethyl ether (24: 1) v/v respectively. The value of the extraction speed constant for each solvent diethyl ether, acetone, and a mixture of acetone with diethyl ether was 0.8913; 1.03975, and 2.0975 (minute-1) based on the Peleg model and 0.00738 for each solvent; 0.00828; 0.0141 (gram/mg.minute) based on the pseudo second-order model.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139370454","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

Absorpsi CO2 Pada Wetted Wall Column dengan Variasi Laju Alir NaOH dan Konsentrasi Methyldiethanolamine 随着 NaOH 流速和甲基二乙醇胺浓度的变化而变化的湿润壁柱中的二氧化碳吸收率

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2023-06-05 DOI: 10.52759/reactor.v4i1.81

Elida Purba, Rio Riski Simbolon

{"title":"Absorpsi CO2 Pada Wetted Wall Column dengan Variasi Laju Alir NaOH dan Konsentrasi Methyldiethanolamine","authors":"Elida Purba, Rio Riski Simbolon","doi":"10.52759/reactor.v4i1.81","DOIUrl":"https://doi.org/10.52759/reactor.v4i1.81","url":null,"abstract":"This research describes the biogas purification process by reducing CO2 content using NaOH solution as an absorbent and methyldiethanolamine (MDEA) as a promoter in Wetted Wall Column (WWC). The purpose of this study was to determine the effect of MDEA concentration and flow rate of NaOH + MDEA solution on CO2 absorption. The column is made of acrylic material with a diameter of 4.5 cm, height 50 cm, equipped with a tube with a diameter of 1.27 cm, height 45 cm. The tube is in the center of the column. The flow rate of absorbent solution for each run was varied as 150, 200, 250 and 300 ml/min and the concentration of MDEA for each run was 4% wt and 6% wt in 1 M NaOH. The biogas flow rate was 6 L/min, which was fed from the bottom of the column. The samples were analyzed by Gas Chromatography 2014 AT (SHIMADZU Corp 08128). The results showed that at 6% NaOH + MDEA solution, the solution flow rate of 150 mL/min was the best. Under these conditions, the output CO2 content is 13.306% and the output CH4 content is 81.737%. The results of the output CO2 content did not reach the 90% target because the biogas was contaminated by gas from the environment and the lack of control over the condition of the equipment during the absorption process.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139370843","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

Peningkatan Efisiensi Poli Tanin Sebagai Dye Pada Dye Sensitized Solar Cell Menggunakan Crosslinker Glutaraldehyde 使用戊二醛交联剂提高染料敏化太阳能电池中作为染料的聚单宁的效率

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2023-06-02 DOI: 10.52759/reactor.v4i1.72

Hanifah Putri Indah Subriadi, Hardeli Hardeli

引用次数: 0

Karakterisasi Kimia CMC (Carboxymethyl Cellulose) Umbi Ganyong

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2022-12-24 DOI: 10.52759/reactor.v3i2.61

Selfa Dewati Samah, Renny Futery, Gustiarini Rika Putri, M. Armin

{"title":"Karakterisasi Kimia CMC (Carboxymethyl Cellulose) Umbi Ganyong","authors":"Selfa Dewati Samah, Renny Futery, Gustiarini Rika Putri, M. Armin","doi":"10.52759/reactor.v3i2.61","DOIUrl":"https://doi.org/10.52759/reactor.v3i2.61","url":null,"abstract":"Carboxymethyl Cellulose (CMC) a compound made from starch of tubers ganyong flour with added methanol, propanol and water. Four process involving alkalization process, karboksimetilasi, neutralization in the process of making the CMC. Carboxymethylization process involving alkazation process neutralization in the proess of making the CMC. Alkazation is reaction between cellulose and soda solution (alkaline) to become alkaline cellulose (cellulose is soluble in soda solution). Carboxymethylization is rection between alkaline cellulose and sodium chloro acetate compound to form sodium Carboxymethyl Cellulose (Na.CMC) which froms a viscous solution. Neutralization is solution neutralization process and the last prcess is the manufacture of CMC. Two processes were first made is Alkazation and Carboxymethylization by reacting 22 g NaOH and 20 g ClCH2COONa respectively. Acetic acid is added is used in the neutralization process, during the heating process in the oven. The overall results for each degree of substitution; pH; viscosity; water content; NaCl concentration; purity; Redemen of cellulose: Rendemen of CMC ganyong; 0.81; 8; 7 cP; 5% 2.01%; 97.99%; 2%; 98.5% respectively. CMC ganyong from the research that has been tested by FTIR spectra test results CMC ganyong can be seen in the picture there are similarities peaks that appears indicating CMC canna generated in this study have the same chemical molecules CMC commercially for food chemical codex is at 732 cm-1 while the peak of commercial CMC 725 cm-1 is carboxyl group and -CH. Based on the research results obtained, it can be concluded that the CMC is of good quality as a filler to make chemical bond stronger.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121359802","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

Pembuatan Tepung Umbi Porang (Amorphophallus oncophyllus) Berkualitas Tinggi Sebagai Bahan Baku Ekstraksi Glukomanan 用于提取胶粘剂的高质量块茎淀粉

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2022-12-22 DOI: 10.52759/reactor.v3i2.62

Mutia Amyranti, Ismi Nurlatifah

{"title":"Pembuatan Tepung Umbi Porang (Amorphophallus oncophyllus) Berkualitas Tinggi Sebagai Bahan Baku Ekstraksi Glukomanan","authors":"Mutia Amyranti, Ismi Nurlatifah","doi":"10.52759/reactor.v3i2.62","DOIUrl":"https://doi.org/10.52759/reactor.v3i2.62","url":null,"abstract":"One of Indonesia's forest products is porang tubers (Amorphophallus Oncophyllus). Porang tuber is a food plant that has a potential source of glucomannan. Post-harvest processing is one of the main problems in obtaining optimal glucomannan levels in porang tubers. This study aims to obtain high quality porang tuber flour by increasing the glucomannan content in porang tuber flour. The research method used was the soaking technique on porang tuber chips before being processed into porang flour. The solvent (anti-browning agent) used as an immersion in this study was sodium metabisulfite with a concentration of 2%, 5% and 7.5% and ascorbic acid with a concentration of 2%, 5% and 7.5%. The length of immersion time in this study was 3 hours (30, 60, 90, 120, 150 and 180 minutes). The results showed that the immersion technique carried out tend to have a real effect on increasing glucomannan levels. The best glucomannan content obtained was in the immersion treatment using sodium metabisulfite at a concentration of 7.5% with an immersion time of 180 minutes of 88.20% and the immersion treatment using ascorbic acid at a concentration of 5% with an immersion time of 150 minutes of 79.45%. The best characteristics of porang tuber flour from the results of the analysis showed the contents of water, protein, fat, carbohydrates and ash respectively were 12.758%, 7.039%, 0.926%, 73.111% and 0.988%.The soaking process using an anti-browning agent can increase glucomannan content as an increase in the selling value of porang flour.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127432350","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

Kinetika Leaching Ni dan Fe dari Bijih Laterit Tipe Limonite Morowali 液态氧乙基和乙醇

REACTOR: Journal of Research on Chemistry and Engineering Pub Date : 2022-12-21 DOI: 10.52759/reactor.v3i2.57

Gyan Prameswara, Flaviana Yohanala Prista Tyassena, Monita Pasaribu, Indhyca Novitha Febryanzha

{"title":"Kinetika Leaching Ni dan Fe dari Bijih Laterit Tipe Limonite Morowali","authors":"Gyan Prameswara, Flaviana Yohanala Prista Tyassena, Monita Pasaribu, Indhyca Novitha Febryanzha","doi":"10.52759/reactor.v3i2.57","DOIUrl":"https://doi.org/10.52759/reactor.v3i2.57","url":null,"abstract":"Nickel (Ni) deposits are depleting, while demand for the metal is increasing. To address this problem, valuable metals such as Ni and Fe can be extracted from secondary sources such as limonite-type laterite ores. The goal of this study was to investigate the influence of leaching temperature on Ni and Fe recovery, as well as the best kinetic model to represent the leaching process of these metals. Temperature has a considerable impact on the leaching process of Ni and Fe. Increasing the temperature from 30 to 90 oC can increase the recovery of Ni by 50% and Fe by 70 %. Ni and Fe recoveries were highest at 93.21 % and 95 %, respectively. Kinetic analysis of the two metals' leaching processes was also performed. It was discovered that the diffusion process controls Ni leaching, which can be represented using the Zhuravlev kinetic model, whereas chemical reactions on the surface of the unreacted core controls Fe leaching. The activation energies for leaching Ni and Fe are 36.53 and 40.32 kJ/mol, respectively. 1930 exp ((-36.53 kJ/mol)/(R.T))t=[(1-X)-1/3)-1]2 is the kinetic equation for Ni leaching. The kinetic equation for Fe leaching is 3903 exp ((- 40.32 kJ/mol)/(R.T)t=1-(1-X)1/3.","PeriodicalId":174114,"journal":{"name":"REACTOR: Journal of Research on Chemistry and Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126139404","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