WEI Shun an
College of Chemistry and Chemical Engineering，Chongqing University, Chongqing 400044, P.R.ChinaWANG Pan
College of Chemistry and Chemical Engineering，Chongqing University, Chongqing 400044, P.R.ChinaDONG Li chun
College of Chemistry and Chemical Engineering，Chongqing University, Chongqing 400044, P.R.ChinaTAN Shi yu
College of Chemistry and Chemical Engineering，Chongqing University, Chongqing 400044, P.R.ChinaYOU Xin qiang
College of Chemistry and Chemical Engineering，Chongqing University, Chongqing 400044, P.R.ChinaYANG Nan
College of Chemistry and Chemical Engineering，Chongqing University, Chongqing 400044, P.R.ChinaIn the Reppe-technology process of producing 1,4-butanediol(BDO), a certain amount of viscous substrate is formed in the thin-film evaporator due to intramolecular aggregation of BDO. A process is proposed to recycle the substrate and reduce discharge. The substrate is hydrolyzed by H 2SO 4 solution at the conditions of mass fraction of H 2SO 4 is 15%, mass ratio of H 2SO 4 to the substrate is 1.3〖DK〗∶1.0, temperature is 150 ℃ and reaction time is 7 h. The results show that BDO based on the raw substrate can be feasibly recovered at the rate up to 39.1%.
魏顺安,王攀,董立春,谭世语,尤新强,杨楠.1,4丁二醇蒸馏底物的回收工艺[J].重庆大学学报,2012,35(3):147~152
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