The Research On The Clean Production Technique Of Naphthalene Series Superplasticizer

At present, the widespread use of the products and condensation points kettlesynthesis process of production naphthalene superplasticizer.,Naphthalene steamvolatile when sulfonating reaction. During condensation reaction formaldehyde wastegas generates,The study on the effect of the volatile naphthalene on naphthalene seriessuperplasticizer, Formaldehyde waste gas purification process, and the treatment ofwastewater reuse formaldehyde producing waste gas method, So far few people havestudied the above problems. So the paper comprehensively studied the volatility of thesystem were the physico-chemical properties.adding volatile naphthalene as asubstitute of industrial naphthalene in the synthesis of naphthalene seriessuperplasticizer, Recycled formaldehyde waste liquid using in Naphthalene SeriesSuperplasticizer influence on Department of naphthalene superplasticizer andconcrete pumping agent performance, At the same time the high strong alkali liquordeveloped formaldehyde waste gas treatment process.From the test,draw the following conclusion:The first,the optimal synthesizing tecthnology parameters were obtained. In thesynthesizing processes of naphthalene-based superplasticizer, the recovered volatilenaphthalene has deeper color, The naphthalene-based superplasticize added withvolatile naphthalene was used to make cement paste. Finally5%is tested as a moreappropriate amount of replacing industrial naphthalene.The second, formaldehyde tail gas treatment of wastewater were used to backsuperplasticizer production or used to make concrete products liquid pumping agent.The mixed liquid water reducing agent ratio on the influence of the performance. With20%of the total alkali amount formaldehyde recycling waste liquid, Condensation reaction of mixed liquid is10%of the water condensation.The third, the way of tail gas treatment proposed to improve the highconcentration without waste tail gas treatment method, The use of the quality score of37%high thick liquid alkali as absorbing liquid, In the spray tanks and alkali liquorstorage tanks used in circulation, the tail gas treatment more efficient.Finally using separate kettle conduction oil heating furnace synthesis heatsulphonated kettle process，when produce per ton of naphthalene superplasticizerCoal consumption quantity less57%than single kettle synthesis steam heatingprocess.To sum up, naphthalene superplasticizer department of clean productiontechnology research, protect the environment and comprehensive utilization of naturalresources, reduce energy consumption,The research has the very important economicand social value.