Separation and recovery method of chlorinated product in titanium tetrachloride production process

The invention relates to a method for separating and recycling chlorination products in a titanium tetrachloride production process, which comprises the following steps of: discharging reactants and waste gas in the titanium tetrachloride production process from chlorination reaction equipment, and separating and recycling the discharged reactants and waste gas in a plurality of steps, wherein the separation and recovery comprises the step of enabling discharged reactants and waste gas to sequentially pass through a plurality of cyclone separators. In the airflow separation process, the temperature of each stage is accurately controlled, corresponding substances are separated out by utilizing the forms of all components under different specific temperature conditions, and the environmental protection problem of waste treatment caused by mixing, pulping and filtering separated dust collection slag is avoided. Meanwhile, the cyclone separator used at high temperature is improved, so that the service life of the