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Journal Jurnal Riset Teknologi Pencegahan Pencemaran IndustriJurnal Riset Teknologi Pencegahan Pencemaran Industri Abstract

Pellets iron concentrate are formed from fine particles in the form of iron ore concentrate or iron sand after the ore has undergone the agglomeration stage and taken the shape of tiny, marble-like lumps. Iron pellets are also an important raw element in the steelmaking process. The physical, chemical, and metallurgical standards for iron pellet quality vary depending on the specific processing method used to create the pellets. The purpose of this research is to make iron pellets using iron sand derived from zircon sand processing byproducts by adding binders. There are three primary phases in the production of iron pellets, Mixing of iron pellet materials, the second balling process and the third induration process. Materials needed to make iron pellets include water, binder, and iron ore/sand. Typically, bentonite, limestone, and/or similar compounds are used as binder. However, in this study kaolin was used as a substitute for commercial binders with variations of (5; 10; 15 and 20%) binder. Based on the test results kaolin greatly affects the hardness of iron pellets. This can be seen from the results of the Compression Strength Test an average of 107.8 to 156.9 N/Pellet or the equivalent of 11 to 16 Kg/Pellet and the results of the drop test pellets broke at a height of 3 - 4 meters. This indicates that the pellets contain good qualities and exhibit resistance to impacts or mechanical pressure that may arise during transportation or utilization.

Conclusion

The research concludes that the addition of kaolin as a binder significantly impacts the hardness of iron pellets, as evidenced by compression strength tests ranging from 107.Drop tests revealed that the pellets fractured at a height of 3-4 meters, indicating good quality and resistance to mechanical stress during handling and transport.These findings demonstrate the potential of kaolin as a viable substitute for commercial binders in iron pellet production.

Future Research

Penelitian lebih lanjut dapat dilakukan untuk mengoptimalkan proporsi kaolin sebagai pengikat, dengan mempertimbangkan jenis iron sand yang berbeda untuk mencapai kekuatan dan stabilitas pellet yang optimal. Studi komparatif perlu dilakukan untuk mengevaluasi kinerja pellet yang dihasilkan dengan kaolin dibandingkan dengan pellet yang menggunakan pengikat komersial seperti bentonit atau limestone, dengan fokus pada efisiensi biaya dan dampak lingkungan. Selain itu, penelitian dapat diperluas untuk menguji pengaruh variasi suhu dan waktu indurasi terhadap karakteristik fisik dan mekanik pellet, serta potensi penggunaan aditif lain untuk meningkatkan kualitas pellet secara keseluruhan, sehingga dapat memberikan kontribusi signifikan dalam meningkatkan efisiensi dan keberlanjutan industri baja.

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