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Simparmin br Ginting
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Lampung
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Reductive leaching of low-grade manganese ores from Way Kanan using corncob as reductant Putri, Yolanda Dwika; Lesmana, Donny; Ginting, Simparmin Br; Sujoto, Vincent Sutresno Hadi
Jurnal Rekayasa Proses Vol 17 No 1 (2023): Volume 17, Number 1, 2023
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.70372

Abstract

The processing of mining products in indonesia has not been utilized optimally. One of them is manganese ore. Way kanan is one of indonesia's potential manganese ore sites. The manganese leaching study used a -200 mesh way kanan manganese ore that was reacted with sulfuric acid at concentrations of 0.1 M, 0.5 M, and 1 M, as well as corncob as a reductant. To separate the dissolved iron in the leaching process, the manganese sulfate solution was purified with sodium hydroxide and then filtered to have a manganese sulfate solution free of iron. Manganese was precipitated using oxalic acid. The manganese oxalate precipitation was calcined at a temperature of 350 °c for two hours. The best manganese extraction obtained at 92.3% was at a sulfuric acid concentration of 1 M, a temperature of 80 °c, and a solution volume of 400 ml. Calcination of manganese oxalate converted the material into hausmannite (Mn3O4).
Extraction of Natural Dyes from Cocoa Pod Husk (Theobroma cacao L.) using Ultrasound Assisted Extraction as a Natural Fabric Dye Utami, Herti; Harahap, Katrina; Pista, Annisa Fitria; Azizah, Ara Annastasya; Marlina, Arlin; Darni, Yuli; Ginting, Simparmin br
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 2 (2024): Jurnal Rekayasa Kimia & Lingkungan (December, 2024)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i2.38384

Abstract

Natural dyes are one of the popular choices for textile dyes today. One part of the plant that has the potential to produce natural dyes is cocoa pod husk (Theobroma cacao L.) because it contains several secondary metabolite compounds, such as tannin which produces a brown color. The extraction method used in this research is Ultrasonic Assisted Extraction (UAE). This study aims to obtain the highest yield of natural dye extracts from cocoa pod husk by varying solvent types, extraction time, and material-to-solvent ratios using the UAE method. In addition, the types of compounds contained in extracts of natural dyes and color results on cotton fabrics were also obtained. The extraction process was carried out using several types of solvents, namely methanol, ethanol, acetone, and distilled water with varying extraction times of 30, 60, and 90 minutes. The research results show that the solvent that can extract the best natural dyes was ethanol with a yield of 11.43% and an extraction time of 90 minutes. Variable ratios of material to 96% ethanol solvent were also observed, namely at ratios of 1:5, 1:6, 1:7, and 1:8 for extraction times of 30, 60, 90, and 120 minutes. The research results were obtained for the ratio of material to ethanol solvent; 1:8 (w/v) and extraction time 120 minutes with a dye yield of 12.29%. The results of the UV-visible spectrophotometry analysis were obtained that the maximum wavelength of cocoa pod husk extract was 656.5 nm with an absorbance of 0.532. The results of the Gas Chromatography-Mass Spectrometry (GC-MS) analysis were obtained that the dye compound in the cocoa pod husk was tannin. Tannin compounds are natural dyes that can be applied to fabrics and will reduce the use of synthetic dyes. The application of dye extracts to cotton fabrics produced a brown color.
The Effect Catalyst Natural Zeolite of Lampung On The Synthesis Of α-Terpineol From Turpentine Utami, Herti; Ginting, Simparmin Br.; Sulistiowati, Dwi Derti; Hermiyati, Ria Putri
International Series on Interdisciplinary Science and Technology Vol. 2 No. 2 (2017)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ins.v2i2.87

Abstract

The major component of turpentine is α-pinene. Alpha pinene can be hydrated using an acid catalyst to produce α-terpineol. It can be used as a perfume, anti -insect, and disinfectants. The using of heterogeneous catalysts as natural zeolite can be a new alternative to replacehomogeneous catalysts. The purpose of this study was to determine the effect of zeolite catalysts and the reaction time which resulting the highest conversion on hydration reactions of turpentine to α-terpineol. Parameters were the effect of catalyst concentration of (5%, 10% and 15%) and the reaction time (60 minutes, 120 minutes and 180 minutes). The turpentine, aquadest and isopropyl alcohol were reacted in the three neck flask at the temperature of 70°C. The result of this study showed that the best condition the hydration of turpentine α-terpineol was achieced at 15% catalyst concentration and the reaction time of 180 minutes. The convertion was obtained to be 4.875%.Keywords— Turpentine, Hydration, Alpha terpineol, Catalys,Natural Zeolite.
INTRODUKSI KOMPOR PELLET BIOMASSA BAGI UKM MINYAK ATSIRI DI KECAMATAN BANDAR MATARAM KABUPATEN LAMPUNG TENGAH Iryani, Dewi Agustina; Damayanti, Sri Ismiyati; Ginting, Simparmin Br; Azhar, Azhar
Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat Vol 4 No 1 (2023): Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/abdilaksana.v4i1.28386

Abstract

Proses penyulingan minyak serai wangi sangat bergantung dari pasokan bahan bakar karena proses penyulingan membutuhkan pasokan panas untuk mempercepat proses penguapan. Saat ini, proses produksi minyak serai yang dilaksankan oleh UKM/perajin di Indonesia umumnya masih menggunakan cara tradisional yaitu dengan peralatan tungku dan ketel sederhana yang tidak memenuhi standar efisiensi energi dan cenderung menimbulkan banyak polusi. Oleh karenanya, dirasa perlu untuk melaksanakan kegiatan pemberdayaan masyarakat yaitu pemberian pengetahuan dan ketrampilan dalam  penggunaan energi alternatif dengan menggunakan Kompor Pellet Biomassa sebagai pengganti tungku tradisional. Kegiatan pemberdayaan ini diharapkan dapat menjadi solusi yang dapat memecahkan permasalahan yang dihadapi oleh UKM yang mempunyai kesulitan mendapatkan bahan bakar seperti gas elpiji atau kayu bakar. Program pengabdian masyarakat ini merupakan program kemitraan yang dilakukan bersama tiga pihak, yaitu industri biopelet (PT. Indokarya Global Jaya) dan UKM Minyak serai wangi sebagai pengguna bahan bakar pelet. Kegiatan pengabdian masyarakat yang dilaksanakan oleh tim pengabadian kepada masyarakat (PKM) Universitas Lampung bertujuan untuk memperkenalkan dan melatih masyarakat tentang teknologi pembakaran yang lebih ramah lingkungan dan memberikan efesiensi yang lebih tinggi dengan menggunakan pellet biomassa (biopellet) sebagai bahan bakar. Kegiatan pengabdian masyarakat terdiri dari beberapa kegiatan, yaitu: (i) sosialisasi, (ii) pelatihan penggunaan kompor dan proses produksi pelet biomassa (i). Target luaran yang diharapkan pada kegiatan ini adalah masyarakat mendapatkan pengetahuan dan keterampilan dalam menggunakan kompor pelet biomassa untuk sebagai sumber energi dalam proses penyulingan yang lebih ramah lingkungan.Kata Kunci : pelet biomassa, UKM minyak atsiri, energi terbarukan, kompor biomassa
Co-Authors Achmad Ariyadi Anandati, Ghea Maulidaco Aviati S., Yuniar Azhar Azhar Azhar Azhar Azhar Azizah, Ara Annastasya Azlia Metta Azlia Metta Badaruddin, M. Damaru, Restu Damayanti, Sri Ismiyati Darmansyah DARMANSYAH . Darmansyah . Darmansyah Darmansyah Darmansyah Darmansyah Devi Permata Sari Devianto, Hary Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Donny Lesmana Donny Lesmana Dwi Derti Sulistiowati Elida Purba Elistia Nursafitri Febriyanto, Pramahadi Feerzet Achmad Guntur Arya Perdana Harahap, Fahmi Alif Utama Harahap, Katrina Hens Saputra Hens Saputra Heri Rustamaji Heri Wardono Hermiyati, Ria Putri Hermiyati, Ria Putri Herry Wardono Herti Utami Herti Utami Herti Utami Herti Utami Heru, Heru Jonathan Kristian Adisaputro lialismeri Lismeri, Lia M. Praditia Ansor M. Yassien Nurfiqih Mardhotillah, Nur Anisa Marlina, Arlin Mayanti, Eva Miranda, Thalya Muhammad Hanif Muhammad Hanif Muhammad Haviz Nabilla Uliane Ni Luh Gede Ratna Juliasih Nisa Meutia Risthy Novaringga, Adellia Nugrahini, Panca Nur Arifaini Nur Hasanah Nurhasanah Husin Pandiangan, Kamisah Delilawati Pista, Annisa Fitria Puligadda, Lohit Krishna Pranav Putri, Erisha Putri, Yolanda Dwika Putriani, Eka Nanda Ria Putri Hermiyati Sebastian Djoni Syukur Sebastian Djoni Syukur Silviyanti, Serly Siti Nurul Khotimah Solly Aryza Sri Ismiyati Damayanti Sujoto, Vincent Sutresno Hadi Sulistiowati, Dwi Derti Sulistiowati, Dwi Derti Thalya Miranda Tirto Prakoso Ulfa Islamia Vincent Sutresno Hadi Sujoto Widi Astuti Widiatmoko, Pramujo Yeni Yulia Yeni Yulia Yolanda Dwika Putri Yuli Darni Yuli Darni Yuli Darni Zulaikha Setya Mega Sari