一、前言蒸馏法处理铜氨溶液,生成的氧化铜在容器壁上结成硬疤,使蒸馏塔堵塞。所以在工业实践中,直至七十年代国内外仍袭用多级蒸煮器,但其蒸馏效率及蒸汽消耗指标均不如蒸馏塔。已往的研究工作已表明,应用氧化铜作晶种时,可使结疤量降低至1/100。但在塔设备死角处及栅板隙缝下部,因晶种不能悬浮,仍易于结疤。 I. Introduction Distillation process copper ammonia solution, the formation of copper oxide in the container wall to form hard scars, so that the distillation column plugging. Therefore, in industrial practice, until the seventies still use multi-stage digester at home and abroad, but its distillation efficiency and steam consumption indicators are not as good as the distillation column. Previous research work has shown that the use of copper oxide as a seed can reduce the amount of scarring to 1/100. However, at the dead angle of the tower equipment and the lower part of the grid plate gap, the seed is still easy to scar due to the seed can not be suspended.