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      <subfield code="a">Laporan Kuliah Kerja Praktek PT. Vale Indonesia, Tbk :</subfield>
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      <subfield code="a">ix, 57 halaman :</subfield>
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      <subfield code="c">20x28,5 cm</subfield>
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      <subfield code="a">OPAC (Rak LKKP TKM 2019)</subfield>
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      <subfield code="a">Makassar :</subfield>
      <subfield code="b">Politeknik ATI Makassar - Teknik Kimia Mineral,</subfield>
      <subfield code="c">2019</subfield>
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      <subfield code="a">Proses pengolahan nikel PT. Vale Indonesia Tbk, dilakukan dengan menggunakan metode Pyrometalurgy untuk menghasilkan logam nikel dalam bentuk sulfid berkadar minimal 75% murni (nikel matte). Kegiatan operasi penambangan yang dilakukan adalah land clearing (pembersihan lahan), stripping (pengupasan lapisan tanah), ore mining (penambangan bijih), screening (pengayakan). Tahapan pengolahan nikel dan unit operasi di PT. Vale Indonesia Tbk, yaitu pengeringan (Dryer), reduksi (Reduction Kiln), peleburan (Electric Furnace), pemurnian (Converter) serta granulasi dan penanganan produk.</subfield>
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