Research on Recovery of Synthetic Rutile Leaching Liquor
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摘要: 采用Ruthner酸再生装置喷雾焙烧人造金红石母液,通过对比分析钢板酸洗液和人造金红石母液的化学成分、浓度、密度、粘度,重点对炉膛温度、空煤比、喷洒流量、吸收流量参数进行优化;考察了焙烧炉喷洒流量、炉膛温度、空煤比对Cl-分解率的影响,并确定出较佳工艺参数;焙烧可获得浓度218.6 g/L再生新酸及TFe含量大于65%的氧化铁粉,解决了废料治理和环保问题,为人造金红石母液的综合回收利用找到一条较好的途径。Abstract: Ruthner acid regeneration device is used to recovery of synthetic rutile mother liquor.Based on a comparative analysis on steel sheet pickling solution and synthetic rutile mother liquor in respects of chemical composition,concentration,density and viscosity,parameters such as hearth temperature,air-coal ratio,spray flow,absorption flow have been optimized The effects of these parameters on Cl- decomposition rate have been investigated,So the optimal process parameters are ascertained accordingly.Reclaimed acid with a concentration of 218.6 g/L and ferric oxide with TFe≥65% were abtained.Then,an effective solution to comprehensive recovery of synthetic rutile mother liquor has been offered.
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Key words:
- Ruthner /
- synthetic rutile mother liquor /
- roasting /
- reclaimed acid /
- ferric oxide
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