A method for purifying germanium in zinc sulfate solution by applying magnetic field

Abstract

The present invention relates to a purification method of germanium in zinc sulfate solution by using magnetic field and belongs to the field of metallurgical and chemical industry. This method comprises the following steps: 1) passing a neutral leaching zinc sulfate solution containing 0.08-2.0mg / L of germanium and with temperature of 60-90 DEG C and pH value of 4.5-5.4 from a wet zinc metallurgical process through a magnetic field generator; 2) keeping the zinc sulfate solution containing germanium in the magnetic field generator for 30-60 min; and 3) conducting liquid-solid separation on the zinc sulfate solution after magnetic field treatment. The germanium in zinc sulfate solution is charged colloid, and in the magnetic field, charged germanium colloid directionally move and agglomerate into large particulate matters, in order to achieve purification of germanium in the zinc sulfate solution. The magnetic field generator uses a permanent magnetic field or electromagnetic field, so that the germanium in zinc sulfate solution in the magnetic field can condense into large particulate matters. The method has the advantages of good germanium removal effect, short work time, no raw material investment, low production costs and low labor intensity.

Description

technical field [0001] The invention relates to a method for purifying germanium in a zinc sulfate solution by applying a magnetic field, belonging to the fields of metallurgy and chemical industry. Background technique [0002] In the hydrometallurgical process, it is necessary to purify and remove germanium in the solution. The existing known methods are the iron hydroxide adsorption method and the zinc powder purification method. The operation time is long, the consumption of zinc powder is high, and the overall production cost is high. . [0003] Therefore, it is necessary to improve the existing method for purifying germanium in zinc sulfate solution, so that no new impurities are introduced in the purification process, the purification method is simple, and the purification rate of germanium is high. Contents of the invention [0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a method for applying a magnet...

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Problems solved by technology

[0002] In the hydrometallurgical process, it is necessary to purify and remove germanium in the solution. The existing known methods are the iron hydroxide adsorption method and the zinc powder purification method. The operation time is long, the consumption of zinc powder is high, and the overall production cost is high.

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