摘要
对蒸馏-溶剂法、溶剂-蒸馏法和双溶剂法生产咔唑的3种实用工艺进行了评述。结果表明,双溶剂法工艺的咔唑得率高、劳动强度小、投资少,可以充分利用煤焦油中的咔唑资源。该工艺适用于50万t/a以下的煤焦油加工厂,经济效益好。
The carbazole production process of distillation-solvent production, solvent-distillation production, dual solvent production are elaborated. The results show that successful dual solvent process developed by Shanxi technical staff has high yield of carbazole, low labor intensity, low investment, which takes advantage of coal tar carbazole resources. This process applies to 500,000 tons less coal tar processing plant, which has good economic efficiency and promotional value.
出处
《山西化工》
2014年第3期60-62,共3页
Shanxi Chemical Industry
关键词
蒸馏-溶剂法
溶剂-蒸馏法
双溶剂法
咔唑
distillation-solvent
solvent-distillation
dual solvent
carbazole
