SHAKING TABLE GRAVITY CONCENTRATION PROCESS STUDY ON PRIMARY TIN ORE OF SKARN TYPE FROM BATUBESI, BANGKA BELITUNG

• Main Author: Natanael, Dimas
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/72215
• Institution: Institut Teknologi Bandung

Tin is one of the metals that is widely used in daily life or industrially. Generally, tin is obtained from secondary tin ores that have high tin content. The reserves and resources of secondary tin ore have been depleted so that it is necessary to process primary tin ore which is another source of tin metal. In this research, the processing of primary tin ore from Batubesi, Belitung by shaking table concentration method was conducted. Gravity concentration process with shaking table device is varied based on operation variables. A series of gravity concentration process experiments using a shaking table were conducted to study the effect of particle feed size (-149 +105?m, -105 +75?m, -75 +38?m, -38?m), wash water flow rate (1L/min, 3L/min, 6L/min, 9L/min), shaking table deck slope (1.5?, 2?, 2.5?, 3?), and feed solids percent (4%, 7%, 10%, 13%) on the results of the concentration process. Primary tin ore was first subjected to sample preparation with the aim of meeting the needs of the study. Each product of the concentration process was then analyzed using X-ray Fluorescence (XRF). Then mineralagraphic analysis was carried out using an Optical Microscope. Experiments were conducted with variations in feed size first with other variables set accordingly based on existing research. The variation that gives the best results will be set as a fixed variable in the next variable experiment. The highest percent Sn recovery of 76.25% was obtained from the experiment with a feed size of -75 +38?m, a wash water flow rate of 9L/min, a rocking table deck inclination of 1.5?, and 4% solids. The highest increase in tin content in the concentrate was obtained in experiments with different variables. The highest Sn content with a value of 3.13% Sn was obtained in experiments with a feed size fraction of -75 + 38?m, a water flow rate of 9L/min, a shaking table deck slope of 1.5?, and a solids percent of 4%. Each variable studied has a different influence on the recovery and tin content of the concentrate. At coarse particle feed sizes the gain tends to increase, but the tin content decreases. Increasing the degree of inclination of the shaking table deck from 1.5? to 3? showed an increase in the tin content of the concentrate while decreasing the tin recovery value. The slow water flow rate make the tin recovery decrease. The optimal results in this study were obtained in experiments with variables in the form of -75 +38-, the water flow rate of 9L/min, rocking table deck inclination of 1.5?, and percent solids of 4% with Sn recovery of 31, 76% and Sn content of 3.13%.