A continuous purification device and process for organosilicon-containing copper contacts

Abstract

The disclosure relates to the field of purification of organosilicon-copper-containing contacts, and specifically provides a continuous purification device and process for organosilicon-copper-containing contacts. Including the reaction tank, there is a first circulation pump at the outlet of the reaction tank, and the pipeline behind the first circulation pump is divided into two paths, so that the preliminary filter unit and the secondary filter unit are connected in parallel; the reaction tank removes the solid in the organosilicon-containing copper contact Copper is oxidized into an ion state; the preliminary filtration unit includes a second circulation pump and a filtrate tank connected in sequence with the first circulation pump; the second circulation pump and the filtrate tank are connected by a circulation pipeline, and the liquid in the filtrate tank The secondary filtration unit includes a first solid-liquid separation device, a washing and stirring tank, a third circulation pump and a second solid-liquid separation device connected in sequence; the second solid-liquid separation device has a silicon slag outlet. The invention solves the problem that in the prior art, in the process of recovering and purifying the organosilicon copper-containing contact body, in order to make the copper fully react to generate copper ions, the next step is usually performed after the reaction is stopped, which cannot meet the problem of continuous production.

Description

technical field [0001] The disclosure relates to the field of purification of organosilicon-copper-containing contacts, and specifically provides a continuous purification device and process for organosilicon-copper-containing contacts. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] In the production process of the organosilicon industry, silicon powder and monochloromethane are used as raw materials. Under the action of a copper-based catalyst, a certain temperature is controlled to react in a fluidized bed reactor to form methylchlorosilane monomer. The operation period of the fluidized bed is 90-120 days. With the extension of the operation period of the fluidized bed, the accumulation of impurities in the contact body of the system gradually increases. After the impurities reach a certain level, periodic shutdown is required to discharge the...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the recovery and purification process of organosilicon copper-containing contacts in the prior art, in order to fully react copper to generate copper ions, the reaction is usually stopped and discharged to the next system, which cannot meet the needs of continuous production

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