| abstract |
The utility model discloses a kind of recycling systems for preparing ortho-aminotoluene and generating waste water,Include the azeotrope column distilled to ortho-aminotoluene waste water and the condenser for making vapor condensation liquefaction,Steam (vapor) outlet is set at the top of the azeotrope column,The azeotropic tower bottom is provided with lower outlet,The azeotrope column middle and upper part is provided with feed inlet,Steam inlet and liquid outlet are set on the condenser,The steam (vapor) outlet is connected with steam inlet by pipeline,The feed inlet is connected with feed pipe,The extremely low aqueous solution of ortho-aminotoluene content is obtained at the liquid outlet,The lower exit obtains the higher ortho-aminotoluene coarse fodder of ortho-aminotoluene content,Generally,The utility model has and effectively can carry out recycling to ortho-aminotoluene,Reducing ortho-aminotoluene content in waste water has reached the standard that can be back to other production technologies simultaneously,Waste water treatment efficiency is high,Effectively reduce cost for wastewater treatment,Has the advantages that high use value. |