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在使用瑞翁法由裂解碳四抽提生产聚合级丁二烯-1,3过程中,由于裂解碳四中含有少量丁二烯-1,2,所以在产品丁二烯-1,3中必然有痕量丁二烯-1,2存在。丁二烯-1,2的存在有可能影响丁二烯-1,3的聚合过程,从而影响顺丁橡胶质量。但是,在使用癸二腈色谱柱分离丁二烯-1,3和丁二烯-1,2时,由于丁二烯-1,2和丁二烯-1,3性质相近而沸点稍高(前者为10.8℃,后者为-4.4℃),所
In the process of using Rui Weng France from four extraction of cracked carbon production of poly (butadiene) -1,3, the cracking of carbon four contains a small amount of butadiene-1,2, so in the product butadiene-1,3 There must be traces of butadiene-1, 2 present. The presence of butadiene-1, 2 may affect the polymerization of butadiene-1,3, thus affecting the quality of butadiene rubber. However, separation of butadiene-1,3 and butadiene-1,2 using a sebaconitrile column results in a slightly higher boiling point due to similar properties of butadiene-1,2 and butadiene-1,3 The former is 10.8 ℃, the latter is -4.4 ℃), the