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Method for separating sulfuric acid and nitric acid from dinitrotoluene mixture obtained during nitration of toluene
Method for separating sulfuric acid and nitric acid from dinitrotoluene mixture obtained during nitration of toluene
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机译:从甲苯硝化过程中得到的二硝基甲苯混合物中分离硫酸和硝酸的方法
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摘要
Sulphuric and nitric acids present in dinitrotoluene are separated from the dinitrotoluene by adding up to 10 wt. % water (based on quantity of dinitrotoluene) to the mixture of dinitrotoluene, sulphuric acid and nitric acid, mixing and separating the aqueous phase containing nitric and sulphuric acids. The mixtures treated by this process generally contain up to 5 wt. % nitric acid and up to 6 wt. % sulphuric acid.
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