STUDY OF OPTIMALIZATION IN TIN ORE BENEFICIATION PROCESS USING GRAVITY CONCENTRATION METHOD WITH JIG AND SHAKING TABLE

• Main Author: Arsagumilang, Olla
• Format: Final Project
• Language: Indonesia
• Subjects: Metalurgi
• Online Access: https://digilib.itb.ac.id/gdl/view/51494
• Institution: Institut Teknologi Bandung

Tin is versatile metal and widely applied in everyday life. The main tin mineral resource found on earth is cassiterite (SnO2). Cassiterite must be carried out by beneficiation process first before enters the smelting process. Gravity Concentration is the method that mostly used in tin beneficiation process and the tools that mostly used for processing are jig and shaking table. However jig and shaking table doesn’t operate well when processing fine particles. While tin ore produces fine particle in a huge amount. This problem will result a lot of tin wasted to tailing. Many effort has been made to optimalize tin beneficiation process using jig and shaking table in order to obtain optimal result. Among them are optimizing operation and ore size parameters, combined processing flowsheet, and applying centrifugal force to jig and shaking table to process fine particles. Therefore a review needed to summarize the effort that has been made to optimalize tin beneficiation process using jig and shaking table. This report will discuss about how parameter affecting process result, the usable processing flowsheet, and the application of centrifugal force to the equipment to process fine particles. The literature was collected first with keywords tin ore, gravity concentration, jig, and shaking table. Each literature is being analyzed and the conclusion from each literature are drawn. The conclusion that must be drawn is about data or theories regarding the effect of operation and ore size parameters, processing flowsheet, and application of centrifugal force in tin ore beneficiation using jig and shaking table. The operating parameters analyzed on jig are about water flow rate, bed thickness, and stroke length. Meanwhile, the operating parameters analyzed on shaking table are water flow rate and deck slope. The conclusions from each literature are combined and compared to produce a new conclusion and answer the research objective. The results of review shows that the greater thickness of the ragging layer and the water flow rate in the jig, the recovery is low, while tin grade is higher. The greater the stroke length, the recovery and tin grade are low in result. On shaking table, the greater water flow rate and slope of the deck, the recovery is low, while tin grade is higher. The smaller the ore size, the lower recovery in result, while the grade depends on the type of ore. The processing of tin ore using a combination jig circuit and a shaking table can result in a recovery up to 93.29% and the enrichment ratio of tin content up to 20. Kelsey jig and Multi Gravity Separator can be used to process fine tin ore up to 75 microns and 6 microns.