用氢氧化钠溶液吸收硫化氢制取硫化钠工业技术

详细阐述了在氯化钡生产过程中，将产生的硫化氢用氢氧化钠溶液吸收并制取硫化钠的生产工艺，分别从技术和经济的角度讨论其可行性：用380~420 g/L氢氧化钠溶液在填料塔中吸收硫化氢，反应终点控制硫化钠质量浓度为330~350 g/L，硫化氢吸收率达95%~98%。该工艺不仅可有效保护环境，而且可为企业创造效益。

Industrial technology of preparing sodium sulfide from absorption of hydrogen sulfide with sodium hydroxide solution

An industrial technology of using sodium hydroxide solution to absorb hydrogen sulfide generated from barium chloride production to produce sodium sulfide was introduced and its feasibility was discussed from technical and economic perspectives respectively:sodium hydroxide solution with 380~420 g/L absorbed hydrogen sulfide in the packed tower,the reaction was end when mass concentration of sodium sulfide was at 330~350 g/L and the absorption rate of hydrogen sulfide reached at 95%~98%.It not only protects the environment,but also creates benefits for enterprises.