Method for producing gallate solution

A gallate solution is produced from a gallium-containing alkaline solution. The method comprises sorption of gallium from a circulating solution on an ion-exchange resin based on a divinylbenzene polymer, desorption of the gallium with a solution of sulfuric acid, thus obtaining a gallium-containing eluate, and then concentrating the gallium by converting it into the solid phase via neutralization of the eluate with a caustic solution, thereby precipitating gallium hydroxide at a predetermined temperature. The precipitate obtained is thickened and filtered off; it is then dissolved in a caustic solution until the desired concentration of gallium in the solution is achieved. The method makes it possible to increase the concentration of gallium by converting it into the solid phase while neutralizing acidic eluates with an alkaline solution, which simplifies the concentrating step and reduces the number of technological operations, and therefore reduces the cost of gallium production.