Pengaruh reagen pelindian pada sintesis ZnO dari debu tungku busur listrik

Widi Astuti (Balai Penelitian Teknologi Mineral, LIPI Jl. Ir. Sutami Km. 15 Tanjung Bintang, Lampung Selatan, Lampung 35361)
Agus Haerudin (Balai Besar Kerajinan dan Batik, Kementerian Perindustrian Jl Kusumanegara, Yogyakarta)
Istihanah Nurul Eskani (Balai Besar Kerajinan dan Batik, Kementerian Perindustrian Jl Kusumanegara, Yogyakarta)
Aulia Pertiwi Tri Yuda (Balai Penelitian Teknologi Mineral, LIPI Jl. Ir. Sutami Km. 15 Tanjung Bintang, Lampung Selatan, Lampung 35361)
Fajar Nurjaman (Balai Penelitian Teknologi Mineral, LIPI Jl. Ir. Sutami Km. 15 Tanjung Bintang, Lampung Selatan, Lampung 35361)
Joni Setiawan (Balai Besar Kerajinan dan Batik, Kementerian Perindustrian Jl Kusumanegara, Yogyakarta)
Dwi Wiji Lestari (Balai Besar Kerajinan dan Batik, Kementerian Perindustrian Jl Kusumanegara, Yogyakarta)
Himawan Tri Bayu Murti Petrus (Departemen Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada Jl Grafika No. 2 Kampus UGM, Yogyakarta, 55283)

Jurnal Rekayasa Proses
Vol 14 No 1 (2020): Volume 14, Number 1, 2020

ZnO nanoparticle was synthesized by a simple hydrometallurgical method using raw material of electric arc furnace dust (EAFD),which is a solid waste in the stainless steel industry. Electric arc furnace dust contains 68.81% Zn in the form of zincite (ZnO) and simonkolleite (H10Cl2O9Zn5). The synthesis was carried out in two main steps, i.e., leaching and alkaline precipitation. In this study, the effect of leaching reagent, leaching temperature, and leaching reagent concentration on the percent extraction of Zn in the leaching process from electric arc furnace dust and the characteristics of the resulting ZnO product were studied. The experimental results showed that leaching reagent of acetic acid gives the highest percent extraction of Zn. The results also showed that the increase of temperature and acid concentration could improve the Zn extraction percentage. At 2M acid concentration, Zn extraction percentage already achieved 100%; hence the process is independent of temperature. The ZnO product has a purity of 96%. The XRD data confirmed the nano sizes of the ZnO product.