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All Journal Musawa : Jurnal Studi Gender dan Islam Distilat: Jurnal Teknologi Separasi Jurnal Pendidikan AURA (Anak Usia Raudhatul Atfhal)
Mas'udah, Mas'udah
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Religion Arts Humanities Chemical Engineering, Chemistry & Bioengineering Education Social Sciences

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Journal : Distilat: Jurnal Teknologi Separasi

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PENGARUH RATIO KATALIS CaO-NaOH DAN WAKTU REAKSI TERHADAP KUALITAS BIODIESEL MINYAK JELANTAH Hidayat, Fajar Rasyid; Mas'udah, Mas'udah; Santosa, Sandra
DISTILAT: Jurnal Teknologi Separasi Vol. 8 No. 4 (2022): December 2022
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/distilat.v8i4.451

Abstract

Biodiesel dari minyak jelantah berpotensi sebagai bahan bakar terbarukan karena konsumsi minyak goreng masyarakat di Indonesia secara nasional pada tahun 2019 mencapai 16,2 juta kilo liter dan menghasilkan rata rata minyak jelantah di kisaran 6,46-9,72 juta kilo liter, namun baru sekitar 3 juta kilo liter minyak jelantah yang dapat dikumpulkan. Penelitian ini bertujuan untuk mengetahui pengaruh ratio katalis CaO-NaOH dan waktu reaksi terhadap kualitas biodiesel dari minyak jelantah. percobaan menggunakan bahan baku minyak jelantah, metanol, dan katalis CaO-NaOH dengan variabel bebas yaitu ratio CaO-NaOH 1:3, 1:1, dan 3:1 dan waktu reaksi 60, 80, dan 100 menit; variabel tetap berupa suhu reaksi sebesar 60°C dan variasi jumlah katalis 1% CaO-NaOH terhadap berat minyak jelantah; dan variabel terikat adalah kualitas biodiesel berupa %yield, densitas biodiesel, dan viskositas biodiesel. Metode analisa biodiesel yang diperoleh menggunakan perhitungan %yield, densitas dan viskositas. Dari penelitian ini didapatkan kesimpulan bahwa hasil percobaan nilai densitas 857-871 kg/m3 telah sesuai SNI 7182:2015 yaitu berkisar 850-890 kg/m3 dan nilai %yield yang dihasilkan sebesar di atas 80% untuk rasio CaO-NaOH 1:3 dan 3:1, dan nilai viskositas biodiesel sebesar 1,15-1,31 cst tidak sesuai dengan standar SNI yang berkisar 2,3-6 cst.
THE EFFECT OF PH SOLUTIONS AND STIRRING SPEED ON NICKEL RECOVERY FROM PYROPHYLLITE ROCKS USING FROTH FLOTATION Santoso, Titi Pangesti Berlian; Santosa, Sandra; Mas'udah, Mas'udah
DISTILAT: Jurnal Teknologi Separasi Vol. 8 No. 4 (2022): December 2022
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/distilat.v8i4.449

Abstract

Nickel is an important element in the metal alloy industry. In Indonesia, nickel resources are found in many areas in the form of rocks such as pyrophyllite. Froth flotation is a method commonly used in the mining industry to extract metals such as nickel from mineral rocks. However, the nickel concentrates yields tend to be relatively low. This is often influenced by several factors such as the pH solutions and stirring speed used in the process. Therefore, this study aims to investigate the effect of agitation speed and collector concentration on the nickel recovery results obtained from the froth flotation process. In this study, variations of pH solutions at 8,9, and 10 were used. Meanwhile, the stirring speed was varied to 700, 800 and 900 rpm. The results showed that the pH solutions and stirring speed had a significant impact on nickel recovery. Optimum results were obtained at pH of 10 and stirring speed of 900 rpm where the nickel concentration reached 27,55% from the initial concentration of 8,21%.
Co-Authors Hidayat, Fajar Rasyid Hudaibiyah, Arshanellya Sandra Santosa Santoso, Titi Pangesti Berlian