Technological method for recycling germanium mud through reaction sedimentation

Abstract

The invention discloses a technological method for recycling germanium mud through reaction sedimentation. The method comprises the following steps: collecting germanium-containing waste liquid generated in a germanium machining process into a collecting tank to be stored, then placing the germanium-containing waste liquid in the collecting tank into a reaction sedimentation tank through a pipeline, adding alkali liquor into the reaction sedimentation tank to adjust the PH value of the waste liquid, then adding a coagulant and a flocculating agent into the reaction sedimentation tank, stirringthe mixture to be uniform through a stirrer, and carrying out reaction sedimentation; and after reaction sedimentation is completed, pumping out supernatant liquid in the reaction sedimentation tankthrough a water pump, and delivering lower-layer turbid liquid in the reaction sedimentation tank to a filter press through a centrifugal pump to be subjected to filter pressing so as to obtain the germanium mud. According to the technological method, rapid sedimentation of the germanium mud is achieved through the method of adding chemical agents, the germanium mud is converted into high-grade germanium powder through filter pressing, baking and grinding, efficient recycling of the germanium mud is achieved, and the problem that an existing low-concentration germanium-containing waste liquidgermanium mud recycling treatment method is low in recycling efficiency and recycling rate is solved.

Description

technical field [0001] The invention relates to the technical field of germanium machining, in particular to a process method for recovering germanium mud through reaction sedimentation. Background technique [0002] During the machining production process of germanium, 90% of germanium will be returned to the recovery box with cutting fluid and cold cutting fluid, but due to the adhesion of germanium shavings, 10% of germanium will be attached to mechanical equipment and processed parts, while working The workshop and staff will also attach a certain amount of germanium. During the cleaning process, the germanium will be mixed into the water and lost. Germanium is a rare metal and also a heavy metal. Germanium is an excellent semiconductor and can be used for high-frequency current detection and AC rectification. In addition, it can be used in infrared light materials, precision instruments, and catalysts. Germanium compounds can be used to make fluorescent plates and vario...

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of processing method that reclaims germanium mud by reaction sedimentation, to solve the machining process of germanium that proposes in the above-mentioned background technology, germanium mud reclaims incompletely, the germanium recovery efficiency and recovery in the low-concentration germanium-containing waste liquid The rate is low, the recycling effect cannot be achieved, and it is easy to cause the waste of resources and the pollution of the environment

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