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Gallium is a rare and precious metal that is of particular importance in the electronics industry due to its use in semiconductors. This metal is partially present in bauxite ore. Around 70% of gallium go into sodium aluminate solution during the leaching of bauxite in the Bayer process. Gallium can be extracted from this solution, which is also called bayer solution, by several methods. Solvent extraction is one of the most common methods for recovery of gallium from Bayer's solution. Capabilities of this method for metals separation and concentrating of polymetallic solution, makes it suitable for many commercial and operational application. In present work, different substances used to...