Analisa Hasil Pencucian Bijih Timah Pada Harz Jig Dalam Menurunkan Kadar Timah (Sn) Pada Tailing di PT Timah (Persero) Tbk. Unit Kundur, Kepulauan Riau

The Analysis of Tin Ore Leaching Products of Harz Jig In Reducing Tin Tailing Levels In Kundur Unit of Riau Archipelago

  • Debi Yulian Adinata Jurusan Teknik Pertambangan, Institut Teknologi Adhi Tama Surabaya
  • Yulan Indah Permatasari Jurusan Teknik Pertambangan, Institut Teknologi Adhi Tama Surabaya

Abstract

Tin ore washery Sn) is less than the maximum will affect the waste of precious minerals together
tailings resulting in increased levels of tin in the tailings. This is certainly a serious problem for the
company, the impact of the loss will be visible both from time, labour, etc. And certainly not in
accordance with the target company based on Standard Operating Procedure (SOP). To determine
the levels of Tin (Sn) is still contained in the tailings, the tailings assessments conducted using
microscopic analysis.Tailings samples studied came from washery tailings back to the concentrate
from the mining and leaching earlier in Dredger (KK) and Ship Suction (KIP) is brought to the Tin Ore
Processing Center (PPBT). Cassetrite or primary mineral Tin (Sn) dominant in the size fraction (+ 50
# -20 #) with a percentage weight of 1.176%, and the largest number of samples contained in the
tailings coming from Ships Suction (KIP) 4 that is equal to 2.61%. Cassetrite for the weight
percentage of all samples of the tailings is 3:09% and obtained his Levels is 2:44% Sn. The results
obtained are presented in tables and graphs. Based on microscopic analysis and calculation of Sn in
the whole sample of tailings Dredger (KK) and Ship Suction (KIP), the results turned out to be not in
accordance with the Standard Operating Procedure (SOP) of the company is 1%.

Keywords: tailing, tin ore (Sn), washing tin, microscopic analysis, mineral cassiterit

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Published
2018-08-15
How to Cite
Adinata, D., & Permatasari, Y. (2018). Analisa Hasil Pencucian Bijih Timah Pada Harz Jig Dalam Menurunkan Kadar Timah (Sn) Pada Tailing di PT Timah (Persero) Tbk. Unit Kundur, Kepulauan Riau. PROMINE, 4(2). https://doi.org/10.33019/promine.v4i2.110
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Articles
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