稀硫酸真空浓缩装置运行总结

Operation Summary of Dilute Sulphuric acid Vacuum Concentration Device

硝基苯生产中产生的稀硫酸原采用锅式浓缩工艺,维修费用高、不环保。采用真空浓缩代替锅式浓缩装置后,解决了环境污染问题,而且每年节约维修费用26万元左右,回收原料约26万元。

The original enrichment tecbonology of dilute sulfuric acid produced in nitrobenzene production was pot concentration process,which had was higher maintenance and repair cost andd environmcnt pollution. After adopting the new technology of vacuum concentration, not only to solve the problem of environmental pollution, save the maintenance cost of the devices about 260 000 yuan and gain about 260 000 yuan of recycling thc raw mater 266 762.9 every year.