Production technological method for boron trifluoride acetonitrile complex solid mixture

Abstract

The invention belongs to the field of chemical technologies, and particularly relates to a production technological method for a boron trifluoride acetonitrile complex solid mixture. The method aims at solving the problems that the existing production process flow is relatively simple, the yield of finished products is relatively small, the resource waste is easily caused, in addition, the waste gas treatment link and the solid recovery link do not exist in the production process, the pollution to the environment is caused, the environmental protection purpose is not achieved, and the like. According to the method, boric acid solid and fuming sulfuric acid liquid are uniformly mixed, a gas-making reaction tower is preheated for 10 minutes through a heater, the temperature is controlled tobe within 200-300 DEG C, mixed acid of the boric acid solid and the fuming sulfuric acid liquid is added into the gas-making reaction tower from the top, and meanwhile, hydrogen fluoride gas is compressed and then is added into the gas making reaction tower from the bottom. The method has the advantages that the yield of the finished products is increased, the resource waste is avoided, the wastegas treatment link and the solid recovery link are increased, the pollution to the environment is avoided, and the environmental protection purpose is achieved.

Description

technical field [0001] The invention relates to the technical field of chemical technology, in particular to a production process for boron trifluoride acetonitrile solid mixture. Background technique [0002] Colorless or pale yellow transparent liquid with a relative density of 0.9g / cm 3 , high solubility, easily soluble in water, miscible in various organic solvents such as alcohol and ether, mainly used as a catalyst for organic reactions, cephalosporin antibiotics, preparation of boron halides, elemental boron, borane, sodium borohydride, etc. An important raw material for borides is the basic raw material for the manufacture of boron hydrogen high-energy fuels and the extraction of isotopes. It can also be used as a curing agent for epoxy resins. It is generally prepared by the reaction of oleum, boric acid, hydrogen fluoride and acetonitrile. [0003] The existing boron trifluoride acetonitrile solid mixture production process, the production process is relatively si...

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Problems solved by technology

[0004] The production process of boron trifluoride acetonitrile solid mixture proposed by the present invention solves the problem that the production process is relatively simple, the output of finished products is relatively small, and resources are easily wasted, and there is no link of waste gas treatment and solid recovery in the production process. , causing environmental pollution, failure to achieve environmental protection goals and other issues

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