Sintesa High Purity Insoluble Sulphur Berbahan Baku Sulfur Padat dengan Polimerisasi Sulfur pada Temperatur 400-500°C

Rizkiani, Bella and Yaqin, Maulana Ainul (2018) Sintesa High Purity Insoluble Sulphur Berbahan Baku Sulfur Padat dengan Polimerisasi Sulfur pada Temperatur 400-500°C. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penggunaan insoluble sulphur sebagai vulcanizing agent ban karet sudah terbukti jauh lebih baik daripada penggunaan sulfur biasa. Hal ini dikarenakan insoluble sulphur terdispersi dalam karet cair dan tidak menimbulkan reaksi samping pada suhu rendah, yang akhirnya menghambat terjadinya blooming dan bin scorch pada ban. Insoluble sulphur adalah sulfur yang tidak larut dalam carbon disulfide (CS2). Produksi insoluble sulphur melibatkan beberapa variabel proses polimerisasi sehingga beberapa penelitian pun dikembangkan untuk memperoleh yield produk dengan kemurnian maksimal. Penelitian penulis dengan judul “Sintesa High Purity Insoluble Sulphur Berbahan Baku Sulfur Padat dengan Proses Polimerisasi Sulfur pada Temperatur 400-500°C” bertujuan mengetahui pengaruh variasi temperatur terhadap kemurnian dan yield dari proses produksi Insoluble sulphur agar dihasilkan produk dengan kemurnian setinggi mungkin, serta mengetahui pengaruh variasi lama perendaman terhadap kemurnian insoluble sulphur. Penelitian ini dilakukan dengan metode eksperimen, yaitu memanaskan sulfur padat dalam reaktor tertutup pada temperatur 400° C, 450° C & 500° C. Setelah tercapai temperatur set point, uap sulfur dialirkan menuju quenching medium melalui tube yang dipanaskan hingga 450° C. Aglomerat sulfur yang terbentuk selanjutnya disaring dan dipanaskan sehingga diperoleh produk yang benar-benar kering. Produk ini lalu dianalisa yield dan kemurniannya baik secara langsung maupun tidak langsung (setelah direndam 12 dan 24 jam pada CS2). Berdasarkan hasil eksperimen, dapat disimpulkan bahwa peningkatan temperatur proses polimerisasi sebanding dengan kenaikan yield. Rata-rata yield yang didapat sebesar 29,83%. Yield maksimum didapat pada temperatur 500oC sebesar 34,5%. Sementara, kemurnian meningkat setelah dilakukan perendaman selama 12 jam dan mengalami penurunan setelah perendaman selama 24 jam untuk setiap variasi temperatur. Kemurnian tertinggi didapat pada suhu 400oC setelah dilakukan perendaman selama 12 jam sebesar 88,65%. Dari hasil kristalisasi X-Ray Difraction (XRD) pada sudut 5o hingga 60o diketahui bahwa insoluble sulphur yang dihasilkan pada temperatur 500o C dengan perendaman selama 12 jam terdapat puncak difraksi pada dua sudut yang mengindikasikan adanya kandungan soluble sulphur pada sampel. Akan tetapi secara kuantitatif, keberadaan soluble sulphur pada sampel belum dapat didefinisikan. ============= The usage of insoluble sulphur as rubber tyre vulcanizer has proven to be much better than the usage of regular sulphur. Hence, the total dispersion of insoluble sulphur within liquid rubber and it doesn’t provide any side reaction at low temperature production, insoluble sulphur can prevent any blooming and bin scorch happens at rubber tyre. Insoluble sulphur is the type of sulphur which can’t be dissolved in the CS2 liquid. Insoluble sulphur production occurs within several variables polymerization process, thus experiments have been conducted to improve the maximum yield and purity. Our research about “Synthesis of High Purity Insoluble Sulphur Production from Solid Sulphur with Polymerization Process at Temperature 400-500oC” has an aim to know the effect of temperature variations on insoluble sulphur’s yield and purity that provide the highest possible purity. Also, to know the effect of bathing time on the purity of insoluble sulphur. Our experiment was done using methods such as heating the sulphur to 400oC, 450oC, and 500oC in a closed reactor. When the temperature set point was reached, the vapor was delivered to the quenching medium through a 450oC pre-heated tube. The solidify sulphur was filtered and the unfiltered CS2 was evaporated until a dry state of product was formed. This product was analyzed on its yield and purity, directly and after the bathing process (12 hours and 24 hours). Based on our experiment result,it can be concluded that the yield of insoluble sulphur increases equally with temperature raising. The average yield was about 29,83%. The maximum yield was gotten at temperature 500oC as much as 34,5%. On the other hand, the purity of insoluble sulphur increases after 12 hours of bathing time and decreases after 24 hours of bathing time for every temperature variations. The maximum purity was gotten at temperature 400oC after 12 hours of bathing time as much as high as 86,65%. Based on the XRD result at 5o-60o as diffraction angles, it can be known that within the product at 500oC after 12 hours of bathing time, there was 2 diffracted angles recorded which indicated the presnce of soluble sulphur in sample. But quantity speaking, the presence of soluble sulphur still couldn’t be defined. Keywords: insoluble sulphur, polymerization, purity, and yield

Item Type: Thesis (Undergraduate)
Additional Information: RSK 668.92 Riz s
Uncontrolled Keywords: insoluble sulphur, polymerization, purity, and yield, kemurnian, polimerisasi
Subjects: Q Science > QD Chemistry > QD471 Chemical compounds - Structure and formulas
Divisions: Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User: Bella Rizkiani
Date Deposited: 20 Feb 2019 06:39
Last Modified: 20 Feb 2019 06:39
URI: http://repository.its.ac.id/id/eprint/54091

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