表面活性剂在红土镍矿高压酸浸中的抑垢作用

化工学报 ›› 2008, Vol. 59 ›› Issue (10): 2573-2576.

表面活性剂在红土镍矿高压酸浸中的抑垢作用

翟秀静;符岩;畅永锋;衣淑立;李应荣;王伟

东北大学材料与冶金学院;金川集团公司

出版日期:2008-10-05 发布日期:2008-10-05

Effect of surfactant on laterite ore slurry properties and scale formation in high pressure acid leaching

ZHAI Xiujing; FU Yan; CHANG Yongfeng; YI Shuli; LI Yingrong; WANG Wei

Online:2008-10-05 Published:2008-10-05

摘要/Abstract

摘要：

研究了红土镍矿浸出过程中高压釜结垢与抑垢问题。采用XRD和SEM分析研究了表面活性剂十二烷基苯磺酸钠对结垢物相和形貌的影响，并考察了表面活性剂对矿浆性质的影响。研究发现十二烷基苯磺酸钠可以减小矿浆表面张力和黏度，添加量为70 mg·L^-1时抑垢效果显著，对镍浸出率影响不明显，可以缓解红土镍矿高压酸浸过程中反应器结垢问题。

关键词:

红土镍矿, 高压酸浸, 结垢

Abstract:

The scale formation and inhibition on the autoclave inner surface during high pressure acid leaching of laterite ore were investigatedThe composition and morphology of scale were analyzed by using XRD and SEMThe effect of surfactant sodium dodecyl benzene sulfonate on the slurry properties was also studiedIt was found that the addition of surfactant could decrease the surface tension and viscosity of the slurryThe optimized content of surfactant was 70 mg·L^-1 to inhibit scale formationThe addition of surfactant had little influence on nickel extraction.

Key words:

红土镍矿, 高压酸浸, 结垢

翟秀静, 符岩, 畅永锋, 衣淑立, 李应荣, 王伟. 表面活性剂在红土镍矿高压酸浸中的抑垢作用 [J]. 化工学报, 2008, 59(10): 2573-2576.

ZHAI Xiujing, FU Yan, CHANG Yongfeng, YI Shuli, LI Yingrong, WANG Wei. Effect of surfactant on laterite ore slurry properties and scale formation in high pressure acid leaching[J]. CIESC Journal, 2008, 59(10): 2573-2576.

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