Design and Manufacturing of Bottle Roller Machine for Laboratory Leaching Process by Using Recycled Materials

Tiara Triana, Tubagus Maulana Ichsan, Muhammad Ikramullah, Defita Harun, Muhammad Dzafif Ghifari


Bottle roll is the equipment used for laboratory metal leaching tests. Leaching is a
widely used metal extraction process by dissolving metal from ore using certain
chemical reagents. The working principle of the bottle roll is to stir the bottle filled with
a suspension sample and place it on rolls that rotate horizontally. In this research, the
rotating rolls were driven by a recycled water pump electric motor which is
transmitted using a pulley and belt. The research objective is to create a bottle roll
machine that is practically easy and safe to carry out the leaching test or any other tests
that involve agitation, especially for process engineering students. The performance
validation of the equipment was done by conducting some leaching tests using the
manufactured bottle roll to determine the consistency of the roll rotation, as leaching
tests are generally done for a quite long period, usually 24 hours continuously. The
sand sample was sieved into 100 mesh of particle size and then mixed with water to
make a suspension. The suspensions were put into 2.5 liters of used glass chemical
bottles and 1 liter HDPE plastic bottles with various diameters of 14 Cm, 12 Cm, and 8
Cm. The results showed that the machine could perform the leaching test at best in
HDPE bottles with an average of 31 RPM of rotation speed tested for 24 hours.


bottle roll, leaching test, agitation, hydrometallurgy

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