环流式碳化塔研究和操作实践(三)——重碱结晶成长方式(兼论重碱结晶形状对纯碱盐分的影响)

Research and Operation Practice for Circumfluent Carbonizing Tower (Ⅲ) ——Growing Behavior of Sodium Bicarbonate Crystal

研究了环流式碳化塔中重碱结晶的形状和成长方式,介绍了索尔维塔和外冷塔的重碱结晶形状,从评价其洗涤性能入手,进一步解释联碱法纯碱盐分高于氨碱法的原因,提出了降低联碱法纯碱盐分的思路。

By studying forms and growing behavior of bicarbonate crystal in circumfluent carbonizing tower, crystal forms of sodium bicarbonate in Solvay tower and outer-cooling tower are introduced. Cause of higher salt content in Hou's Process than in Ammonia Alkali Process is further explained and an idea of reducing salt content in Hou's Process is proposed through evaluating its washing performance.