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All Journal Jurnal Hasil Penelitian Industri ALKIMIA : Jurnal Ilmu Kimia dan Terapan
Eddyanto Eddyanto, Eddyanto
Jurusan Kimia, Universitas Negeri Medan, Jl. Willem Iskandar PO Box 1589, Medan, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Social Sciences

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EKSTRAKSI DAN KARAKTERISASI MINYAK DARI LIMBAH PADAT PABRIK MINYAK GORENG KELAPA SAWIT (Extraction and Characterization of Oil from Solid Waste of Palm Oil Refinery) Nuryanto, Eka; Karo Karo, Justaman A.; Eddyanto, Eddyanto; Hasibuan, Hasrul Abdi
Jurnal Hasil Penelitian Industri Vol 29, No 1 (2016)
Publisher : Baristand Industri Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.353 KB)

Abstract

The most of solid waste from palm oil refinery is Spent Bleaching Earth (SBE) with amount of1.5-3.0 from Crude Palm Oil (CPO) are processed. Generally utilizing SBE is to landfills. This researchwill be extraction of oil from the SBE with reflux method using hexane and its characterization. In thisresearch, the variable is a comparison between SBE:hexane (w/v), i.e. 1:2, 1: 3, 1: 4, 1: 6 and 1: 8, andreflux temperature at room temperature, 50, and 70 °C. On the extraction of oil with reflux temperature50 oC at all comparison SBE:hexane (w/v), the amount of oil which is obtained under 31,11%. While mostoil is obtained at a reflux temperature of 70 oC with a comparison of SBE:hexane (1: 8 (w/v)) which reached34.58%. Characteristic of oil contains free fatty acids 33,62%, moisture content 6.6%, impuirities 2.8%,iodine number 40.5 mg I2/100 g, and the number of peroxides 104,92 meq O2/kg. The characteristics of thiskind of oil, cannot be categorized as CPO and edible oil. However it is still possible to be utilized as rawmaterial for the soap, grease, lubricants, biodiesel and other oleochemicals products.
Molecular Weight and Functional Group Analysis of Low Molecular Weight of Liquid Cyclic Natural Rubber Widiarti, Leni; Sajaratuddur, Sajaratuddur; Wirjosentono, Basuki; Eddyanto, Eddyanto
ALKIMIA Vol 6 No 1 (2022): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.564 KB) | DOI: 10.19109/alkimia.v6i1.11711

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The research about molecular weight and functional group analysis of low molecular weight liquid cyclic natural rubber has been done. The aim of this research is to achievement the quality of low molecular weight of liquid cyclic natural rubber. This research has been made in several steps such as preparation of the sample of rubber, the process of molecular degradation of cyclic rubber, and characterization of LCNR by using FTIR, GPC and viscosity test. Degradation is done with the help of the phenylhydrazine reagent with oxygen gas atmosphere with a flow rate of 2 LMin-1 for 24 hours. Molecular weight analysis by GPC had result the LCNR sample had a Mw is 60,556, a Mn is 6,661, and a PDI is 11,08613. The intrinsic viscosity can be used by relating it to the molecular weight by the Mark Houwink – Sakurada (MHS) equation and get the result 63.533 for LCNR molecular weight. The C-H stretching and bending region are two of the most difficult regions to interpret in infrared spectra. The ranges between 3300 to 2750 cm-1 is the C-H stretching region, is the more practical of the two regions. The frequency with which C-H bonds are obstructed is largely determined by the type of hybridization attributed to the bond. The stronger the vibrational force constant, the higher the vibration frequency.
Co-Authors Basuki Wirjosentono eka nuryanto Hasrul Abdi Hasibuan Justaman A. Karo Karo, Justaman A. Leni Widiarti Sajaratuddur, Sajaratuddur