Simulation And Experiment Of Purifying Anisole

The separation of boron-10 isotopes was studied in previous research by chemical isotope exchange distillation between BF3 and the complex anisole?BF3。Much residual anisole from the above experiment need to be purified to reduce the cost by recycle. It can also provide basis for the successive separation and industrial mass production.Characteristics of the separation of boron-10 isotopes was analyzed both theoretically and experimentally. The main parts and conclusions of the experiment were showed below:1. Constant-molar-holdup model of batch distillation was proposed. Some kinds of factors on the yield of anisole were simulated, such as reflux ratio, theoretical plates stages, purity of product, etc. As the simulating results showed, when the composition of raw material was 98% and the average concentration of anisole in the top of column was above 99.8%, the feasible number of theoretical plates was 13, the reflux ratio of product phase was 1.5, and the yield of anisole was 92.04%.2. The proof test showed that constant-molar-holdup model can describe the continuous distillation process well with an uncertainty of 10% and the model is veracious and reliable.3. Aspen.Plus software was utilized to simulate and calculate the experiment of continuous distillation and the effects of reflux ratio on the product of anisole were analyzed. The results showed that the feasible reflux ratio was 0.7 and the yield was 98.641% when the number of theoretical plates was 13,feed location was the 4th theoretical plate and the average concentration of anisole in top of column was above 99.6%.