【摘要】 采用先分离固体磺胺酸后中和的方法,无需活性炭脱色即可制得外观洁白的磺胺酸钠产品.探讨了转位温度、物料配比等工艺参数对产品收率和质量的影响,得出最佳反应条件为转位温度185℃、苯胺与硫酸摩尔比1:1.2,产率达98.8%.更多还原

【Abstract】 The white crystal of sodium sulfanilate was obtained by firstly separating the solid benzene sulfanilate and then neutralizing it without decoloration by active carbon. The influences of transpostion temperature,material ratio etc. operation parameters on the yield and quality of the product were discussed. The results showed that the optimum conditions were transposition temperature 185℃C,the molar ratio of aniline/sulfuric acid 1 : 1. 2.the yield could be up to 98. 8%.更多还原