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我厂研究所赤泥脱碱三结合小组,通过试验,找到了加压脱碱的良好工艺条件为: 压力 6(公斤/厘米~2) 加石灰 2～4％ 反应时间 1小时 在上述技术条件下,脱碱效率可达60％以上,脱碱后赤泥总碱含量小于1.5％,除去副液后赤泥碱含量在1％以下。
I plant the red mud mud alkaline combination of three groups, through the test, found a good alkaline pressure off the process conditions: pressure 6 (kg / cm ~ 2) plus lime 2 ~ 4% reaction time 1 hour in the above technical conditions Under the alkali removal efficiency of up to 60% or more, after alkaline dephosphorization total alkalinity content of less than 1.5%, remove the secondary liquid red mud content less than 1%.