The Effects of Process Parameters on the Recycling Efficiency of Used Aluminium Beverage Cans (UBCs)

Özer, Gökhan; Yuksel, Caglar; Cömert, Zekeriya Yaşar; Güler, Kerem Altuğ

doi:10.3139/120.110448

Cited by 13 publications

(10 citation statements)

References 9 publications

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“…Hasil penelitian dengan variasi waktu tahan diperlihatkan pada Gambar 2. , 2011;Alsaffar, 2008;Totten, 2003;ASM vol.2, 2004;Cabden, 1994;Wotton, 1994;Ozer, 2013;Rabah, 2013). Scrap kaleng minuman dilebur dalam keadaan telah dipotong menjadi beberapa bagian kecil dan dicampur antara bagian tutup kaleng dengan badan kaleng.…”

Section: Kadar Magnesiumunclassified

“…Berdasarkan hipotesa dalam penelitian ini semakin banyak penambahan massa flux pada leburan logam maka nilai persen recycling efficiency akan semakin menurun, pernyataan ini juga diperkuat dengan adanya penelitian yang dilakukan oleh Gokhan Ozer dkk pada tahun 2013 dengan hasil maksimum dari penambahan massa flux berada pada penambahan 5% flux dari total massa scrap yang digunakan dan menyatakan bahwa penambahan flux lebih dari 5% akan menurunkan persentase recycling efficiency (Ozer, 2013 intersisial, keadaan ini hanya dapat dilakukan jika atom relatif lebih kecil dibandingkan dengan atom matriks. Jika atom lebih besar dibandingkan dengan atom matriks maka akan menghasilkan distorsi yang sangat besar jika melawati satu bagian intersisi ke intersisi yang lain.…”

Section: Gambar 3 Pengaruh Massa Flux Terhadap Persen Recycling Efficunclassified

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PENGARUH MASSA FLUX DAN WAKTU TAHAN FLUXING TERHADAP PENGURANGAN Mg PADA RECYCLING KALENG MINUMAN ALUMUNIUM

Oediyani¹,

Zain

Juniarsih

2017

tjst

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ABSTRAKPemanfaatan pengolahan scrap kaleng minuman aluminium dapat digunakan sebagai bahan sekunder pada proses manufaktur produk aluminium. Ingot hasil daur ulang scrap kaleng minuman aluminium diharapkan dapat mengurangi biaya produksi, mengurangi polusi yang ditimbulkan serta dapat memenuhi kebutuhan aluminium di Indonesia. Penggunaan flux merupakan salah satu metode yang digunakan untuk mengurangi unsur pengotor pada aluminium paduan disamping itu flux dapat melindungi logam cair berikatan dengan oksigen. Di dalam penelitian ini digunakan scrap kaleng minuman yang terdiri dari scrap kaleng minuman berkarbonasi, isotonik dan penyegar. Pembuatan ingot dari bahan baku scrap kaleng minuman aluminium menggunakan variasi waktu tahan proses fluxing selama 60, 120, 180 dan 240 menit dan variasi penambahan massa flux sebanyak 5, 10 dan 15% dari total massa scrap. Kemudian dilakukan pengujian terhadap ingot yang dihasilkan untuk mengetahui persen penurunan kadar Mg dan perolehan Al menggunakan analisa teknik XRF, pengujian metalografi terhadap ingot untuk melihat strukturmikro hasil daur ulang. Hasil penelitian menunjukkan bahwa persen reduksi Mg tertinggi adalah 77,83% pada sampel penambahan 15% flux dengan waktu tahan selama 120 menit, perolehan Al tertinggi didapatkan sebesar 97,49% pada sampel penambahan 15% flux dengan waktu tahan 240 menit. Untuk nilai persen yield, recovery dan recycling efficiency, nilai tertinggi pada penambahan 10% flux dengan waktu tahan 180 menit dengan masingmasing nilai sebesar 98,82% untuk yield, 71,84% untuk recovery dan 70,53% untuk recycling efficiency. ABSTRACTThe utilization of aluminum beverage scrap processing can be used as a secondary material in the manufacturing process of aluminum products. Ingot recycled scrap aluminum beverage cans are expected to reduce production costs, reduce pollution generated and can meet the needs of aluminum in Indonesia. The use of flux is one of the methods used to reduce the impurity element on aluminum alloy beside that flux can protect molten metal binds to oxygen. In this study used scrap beverage cans consisting of carbonated beverage scrap cans, isotonic and refreshing. Ingot ingredients from scrap aluminum beverage cans using variation of fluxing resistance time for 60, 120, 180 and 240 minutes and variations of flux mass increase of 5, 10 and 15% of total scrap mass. Then tested the resulting ingot to know the percent decrease of Mg and Al recovery using XRF technique, metallographic test to ingot to see recycled microstructure. The results showed that the highest reduction percentage of Mg was 77.83% in a sample of 15% flux addition with a duration of 120 minutes, the highest Al gain was 97.49% in the sample of 15% flux addition with 240 min. For percent yield, recovery and recycling efficiency, the highest value is 10% flux with 180 minutes of duration with 98.82% for yield, 71.84% for recovery and 70.53% for recycling efficiency.

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Section: Kadar Magnesiumunclassified

Section: Gambar 3 Pengaruh Massa Flux Terhadap Persen Recycling Efficunclassified

PENGARUH MASSA FLUX DAN WAKTU TAHAN FLUXING TERHADAP PENGURANGAN Mg PADA RECYCLING KALENG MINUMAN ALUMUNIUM

Oediyani¹,

Zain

Juniarsih

2017

tjst

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“…To increase the reactivity of the flux and the removing efficiency of inclusions from the melts, cryolite or other fluorides may be added, such as Na 3 AlF 6 , CaF 2 , Na 2 SiF 6, that accelerate the wettability with oxides and inclusions. In this way, the magnesium removal from the aluminum scrap is enhanced and the aluminum recovered from the dross is increased [78].…”

Section: Charging and Fluxingmentioning

confidence: 99%

Preparation and Melting of Scrap in Aluminum Recycling: A Review

Capuzzi

Timelli

2018

Metals

171

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Abstract:This work provides an overview of the aluminum (Al) recycling process, from the scrap upgrading to the melting process. Innovations and new trends regarding the Al recycling technologies are highlighted. Aluminum recycling offers advantages in terms of environmental and economic benefits. The presence of deleterious impurities in recycled Al alloys is increasing and this is the main drawback if compared to primary alloys. The continuous growth of undesired elements can be mitigated by different technologies, preliminary operations and treatments, and by the optimization of the melting process. Downgrading and dilution are possible solutions to reduce the rate of impurities, but they are not sustainable if the final use of Al alloy continuously increases. The main objectives in the development of the Al recycling are shown and discussed. In particular, the evolution of preliminary treatments of the scrap, as sorting, comminution and de-coating, is reported and a review of the melting technologies is also presented. However, the choice of performing preliminary operations to the melting stage, thus improving the operating conditions during the furnace running, is a trade-off between costs and process efficiency.

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“…Mehrabian [17] shown experimentally how trapped air bubble can result in breakaway oxidation and illustrated this mechanism impeccably. Ozer [18] and Bhagyanathan [19] studied the recycling efficiency of aluminum cans and showed that oxidation during remelting is the key parameter for improved melt cleanliness.…”

Section: Introductionmentioning

confidence: 99%