cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Isra Mouludi
Contact Email
reactor@poltekatipdg.ac.id
Phone
+6281363424853
Journal Mail Official
reactor@poltekatipdg.ac.id
Editorial Address
Politeknik ATI Padang Jl Bungo Pasang Tabing Padang, 25171 Indonesia
Location
Kota padang,
Sumatera barat
INDONESIA
REACTOR : Journal of Research On Chemistry And Engineering
Published by Politeknik ATI Padang
ISSN : -     EISSN : 27460401     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Energy
1. Bioenergy 2. Waste Treatment 3. Simulation and control process 4. Advanced materials 5. Bioengineering (chemical & massa) 6. Bioprocess 7. General chemistry 8. Applied chemistry 9. Biochemical 10. and other as problem solving in the field of environment, energy, food, agriculture, medical and pharmacy
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 121 Documents
 9   10   11   12   13 
Kajian Pemanfaatan Cangkang Sawit Sebagai Pengganti Solar Industri Pada Sistem Thermal Oil Heater di Pabrik Resin Dina , Sari Farah; Hutajulu, Poltak Evencus; Nur, Taufiq Bin; Karo-karo, Justaman Arifin
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 2 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i2.58

Abstract

The National Energy Policy to develop the use of renewable energy has opened up opportunities for industry to develop the use of biomass. A study on the use of palm shells as a substitute for industrial diesel in a thermal oil heating system at a natural rubber resin factory in North Sumatra has been carried out. All information and data on the operation of TOH were obtained through secondary data collection and direct discussions in the field. The secondary data obtained include the type and specification of the heater, the characteristics of the thermal oil (type, flow rate, temperature inlet and outlet of the heater), fuel consumption/hour and the characteristics of palm shells. From the study conducted, it can be concluded that during the process of heating thermal oil which takes place gradually in the TOH system using industrial diesel, it has a heat capacity of 1.500.000 kcal/hour, but the maximum heat that is useful for heating thermal oil is 694,396 kcal/hour with maximum thermal efficiency is 80.69%. Estimated consumption of palm kernel shells required to heat thermal oil on the assumption of 70% thermal efficiency as a substitute for energy supplied by industrial diesel is 237 kg/hour. The savings from this fuel replacement is estimated Rp.3.286.800.000/year.
Pembuatan Tepung Umbi Porang (Amorphophallus oncophyllus) Berkualitas Tinggi Sebagai Bahan Baku Ekstraksi Glukomanan Amyranti, Mutia; Nurlatifah , Ismi
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 2 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i2.62

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.
Karakterisasi Kimia CMC (Carboxymethyl Cellulose) Umbi Ganyong Samah, Selfa Dewati; Futeri, Renny; Putri, Gustiarini Rika; Armin, M. Ikhlas
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 2 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i2.61

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.
Sintesis Precipitate Calsium Carbonat Sebagai Filler Pada Plastik Ramah Lingkungan Elfina, Sri; Jamarun, Novesar; Djamaan, Akmal
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 1 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.4

Abstract

Limestone is a mineral which is very abundant in Indonesia, especially in West Sumatra. Limestone is synthesized for making Precipitate Calcium Carbonate as a filler in plastics. The results of studies conducted on Precipitate Calcium Carbonate fillers from limestone based on X-RD, FTIR and SEMEDX analysis results, it can be concluded that the compound synthesized from limestone CaO is Precipitate Calcium Carbonate with aragonite and calcite crystal types. While the BET test showed a specific surface area of Precipitate Calcium Carbonate with a value of 7.315 m2 / g. Environmentally friendly plastic surfaces with the addition of Precipitate Calcium Carbonate filler were characterized using AFM obtained Rq value of 0.43 µm.
Pengembangan Produk Bakso yang Berbahan Baku Berantioksidan Wellyalina, Wellyalina; Syukri, Daimon
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 1 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.5

Abstract

The development of functional food is increasing. Meatball is a popular food product that can be developed to be more functional by adding antioxidants. Meatballs are processed products from small round meat. This study aims to obtain the best formula for meatball production with high antioxidant content and good organoleptic characteristics. The addition of Moringa leaves, celery, panax cup leaves, and lime leaves to the original meatball production formula was used as a treatment in this study. The research method uses an exploratory method through laboratory experiments. The treatment used was the addition of Moringa leaves, celery, bowl, and lime leaves. Each treatment was added with a different main ingredient as much as 3.3% with 3 repetitions so that the results can be said to be valid. The results showed that the addition of panax cup leaves could produce functional meatballs with the best antioxidant and organoleptic properties among all treatments.
Perbandingan Kandungan Selulosa dan Lignin dari Kayu Acacia crassicarpa dan Acacia mangium Putri, Melysa; Poeni, Shalsyabila
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 1 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.3

Abstract

The development of the pulp & paper industries in Indonesia increase every year. To support the development of industries in Indonesia in order to be able to compete with similar industries from abroad, it is very important to pay attention to the quality of the paper produced. One way to determine the quality of the pulp & paper is by knowing the chemical composition and area where the wood grows. Important chemical compositions that can support the strength of wood and paper quality include cellulose and lignin. Therefore, this study was conducted to the levels of cellulose and lignin contained in Acacia crassicarpa wood from wetlands and Acacia mangium from dry land which is processed into pulp & paper with good quality. Determination of cellulose and lignin content in wood was carried out using the gravimetric method. Test results on Acacia crassicarpa wood species from wetlands obtained cellulose content of 55.48% and lignin 24.13%, while in Acacia mangium wood from dry land obtained cellulose content of 51.46% and lignin 27.66%. According to The National Indonesian Standards that levels of cellulose in two different fields are obtained according to the standards. So for the results of testing Acacia crassicarpa wood from wetlands has the highest levels of cellulose with low levels of lignin.
Ekstraksi Antioksidan Alami Dan Uji Aktifitas Antioksidan Dari Daun Sirsak (Annona muricata L.) Akbar, Addin; Youfa, Rita
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 1 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.1

Abstract

Antioxidant extracted from soursop leaves with solvent extraction and stirring methods. Ethanol, ethyl acetate, and n-hexane use as a solvent. Extraction temperature varied of 35 °, 45 °, 55 ° C. The highest yield obtained was 20.2% from the ethanol extraction at a temperature of 55 °C. Test result of antioxidant activity using DPPH method indicates that the ethyl acetate fraction has the highest activity with% RSA 81.10 followed by ethanol and nhexane fraction of 69.64% and 27.60%. GCMS analysis indicated that the ethyl acetate fraction has the most antioxidant compounds with 11 compounds followed by ethanol fraction and n-hexane which has 9 and 4 antioxidant compounds with the highest content is the tocopherol group.
Penentuan Acid Value Dan Saponification Value Wax Ester Pada Section 110 Di PT X Syafrinal, Syafrinal; Chandra, Muhammad Luthfian
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 1 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.12

Abstract

This study aims to determine the Acid Value (AV) and the Saponification Value (SV) of Wax ester for each reactor in section 110 and compare the values obtained with the PT X standard. The method used is alkalimetry to determine the acid value and acidimetry for the determination of the Saponification Value. The results obtained were Acid Value 0.92 ppm - 1.02 ppm which was following the PT X standard, max 1ppm. The Saponification Value the results obtained were 132 ppm - 142 ppm which was following the PT X standard, min 130 ppm. This indicates that the resulting wax ester can be used for the preparation of fatty alcohols in sections 111-113.
Pengaruh Waktu Dan Temperatur Pelindian Terhadap Hasil Ekstraksi Nikel Laterit Menggunakan H2SO4 Pada Tekanan Atmosfer Malik, Yulianti; Hardiono, Rizky; Septiawan, Muh. Rdwan
REACTOR: Journal of Research on Chemistry and Engineering Vol. 6 No. 2 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v6i2.7

Abstract

The rising demand for nickel in electric vehicle batteries drives the adoption of hydrometallurgical processing, notably Atmospheric Leaching (AL) and High-Pressure Acid Leaching (HPAL), primarily using acid solutions like sulfuric acid for Ni extraction. Although AL offers lower operating costs and simpler equipment, it is typically challenged by high levels of Fe impurities and elevated acid consumption compared to HPAL. To address these limitations, this research investigated optimizing AL by manipulating key process parameters: time and temperature. The study focused on lateritic nickel ore leaching using 0.8 M sulfuric acid, maintaining a solid-to-liquid (S/L) ratio of 20% and a stirring speed of 350 rpm. Experiments were conducted across temperatures of 75, 85, and 95oC and durations from 2 to 8 hours. The optimal result was achieved at 95oC for 8 hours, yielding the highest Ni extraction of 55.81% and the lowest total acid consumption of 1399.45 kg/ton of ore. This indicates that increased temperature and duration accelerate the Ni reaction rate with the sulfuric acid. The extraction of Fe rapid initially decreased significantly over time due to saturation, which directly contributed to the desirable reduction in overall acid consumption.
Optimasi Penghilangan COD dan Warna dengan Proses Koagulasi, Flokulasi dan Sedimentasi untuk Pengolahan Air Limbah Industri Kertas Sutopo, Ulung Muhammad; Fariza, Elfia; Sartika, Lastri; Desmiarti, Reni
REACTOR: Journal of Research on Chemistry and Engineering Vol. 6 No. 2 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v6i2.9

Abstract

Pulp and paper industry wastewater contains very potential pollutants, especially suspended solids, BOD, and COD which are stable colloids and difficult to separate. To reduce the COD content in paper industry wastewater, the addition of coagulant chemicals is needed. The coagulant used is 20% poly aluminum chloride (PAC) with a variation of 100-600 mg/L and polymer with a dose of 1-6 mg/L to reduce COD and color in wastewater treatment. The settling time used is 1-25 minutes. The effect of adding PAC coagulant is able to reduce COD and color of wastewater at the optimal point, but when the addition of PAC is excessive, the COD and color of the wastewater increase again. The results found that the optimum conditions occurred at a PAC dosage of 400 mg/L and a polymer dosage of 4 mg/L with a settling time of 20 minutes, resulting in a reduction of TSS, COD, and color to 12 mg/L, 102 mg/L, and 123 PtCo, respectively. The combination of coagulation-flocculation-sedimentation processes under these optimum conditions proved effective as a tertiary treatment to meet wastewater quality standards for the paper industry

Page 12 of 13 | Total Record : 121

 9   10   11   12   13 

Filter by Year

2020 2025


Reset
Filter By Issues
All Issue Vol 6, No 1 (2025): June 2025 Vol. 6 No. 2 (2025) Vol. 6 No. 1 (2025) Vol 5, No 1 (2024): Published in June 2024 Vol 5, No 2: December 2024 Vol. 5 No. 2 (2024) Vol. 5 No. 1 (2024) Vol 4, No 2 (2023): Published in December 2023 Vol 4, No 1 (2023): Published in June 2023 Vol. 4 No. 2 (2023) Vol. 4 No. 1 (2023) Vol 3, No 2 (2022): Published in December 2022 Vol 3, No 1 (2022): Published in June 2022 Vol. 3 No. 2 (2022) Vol. 3 No. 1 (2022) Vol 2, No 2 (2021): Published in December 2021 Vol 2, No 1 (2021): Published in June 2021 Vol. 2 No. 2 (2021) Vol. 2 No. 1 (2021) Vol 1, No 2 (2020): Published in December 2020 Vol 1, No 1 (2020): Published in June 2020 Vol. 1 No. 2 (2020) Vol. 1 No. 1 (2020) More Issue