Organic silicon slag slurry treatment method

Abstract

The invention belongs to the technical field of production of organic silicon, and in particular relates to an organic silicon slag slurry treatment method. A treatment device used in the method comprises a tank cover, a tank body, a feeding hole, a discharge hole and a gas outlet, wherein the tank cover is provided with the feeding port and the gas outlet; the tank cover is connected with the tank body by means of a flange; the bottom of the tank body is provided with the discharge hole; a controller is arranged at the outer side of the tank body; a motor is installed on an installing support, and an output shaft of the motor is connected with a rotating shaft; the middle parts of support rods are fixedly connected with the rotating shaft; the top of a support frame is fixedly connected with the support rods; the bottom of the rotating shaft is fixedly connected with a cylinder No. 1, and a telescopic rod of the cylinder No. 1 passes through the support frame and is connected with a stirring module. When the treatment device is in use, organic silicon slag slurry in the tank body is stirred in a way of up and down reciprocating motion while the stirring module is driven to rotateby means of the cylinder No. 1, so that the organic silicon slag slurry is fully stirred, the evaporation efficiency of the device is increased, and the effective treatment of the organic silicon slagslurry is realized.

Description

technical field [0001] The invention belongs to the technical field of organosilicon production, in particular to a method for treating organosilicon slurry. Background technique [0002] Organosilicon slurry is the waste produced during the synthesis of organosilicon monomers, especially methyl chlorosilane monomers. It is mainly composed of a large amount of high boilers and a small amount of unreacted silicon powder and copper powder brought out of the fluidized bed. , High boiler refers to the high boiling point polysilane mixture with silicon-silicon bond, silicon-carbon-silicon bond, silicon-oxygen-silicon bond, silicon-oxygen-silicon bond, silicon-silicon bond, silicon-carbon-silicon bond, silicon-oxygen-silicon bond, and a boiling range of 70.3-250 °C produced during the synthesis of methylchlorosilane monomer. . If this part of the material is exposed to the air, it will burn or form a strong acid mist or liquid. Therefore, if it is directly discharged, it will cau...

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Problems solved by technology

The organosilicon slurry treatment method of the present invention overcomes the disadvantage that a large amount of high boiling substances cannot be recovered in the prior art, and steams the high boiling substances as much as possible under the condition that the slurry is not seriously agglomerated, and the recovery rate is ≥ 80%. The recovered high boiling matter is cracked to obtain methyl chlorosilane monomer, and the residue obtained by evaporation can be recycled well, which not only solves the environmental protection and safety problems, but also saves the slurry treatment cost; , failed to achieve sufficient stirring of the silicone slurry, and the heat preservation effect of the device was not involved, and the treatment efficiency needs to be further improved

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