离心萃取法卤水提硼的研究

以青海省东台吉乃尔盐湖酸化提硼母液为原料,采用CTL50-N型小流量环隙式离心萃取器,以异辛醇/磺化煤油为萃取体系萃取析硼母液中的硼。讨论了萃取剂浓度、萃取酸度、相比、流速、转速及萃取级数对萃取工艺的影响。试验结果表明,在最佳工艺参数的条件下其萃取率达到了97%以上,反萃取率在98%以上,通过酸性溶液可使硼酸浓缩到47g/L。本试验将为产业化提硼提供依据,离心萃取器在这一方面也将会有广泛的应用前景。

Research on Extracting Boron from Brine by Centrifugal Extraction Method

Taking acidified mother liquor of East Taijinar salt lake as raw material,boric acid was extracted with isooctanol and sulfonated kerosene system,by low flowrate annular CTL50-N centrifugal extractor.The influence of extractant concentration,acidity,the ratio of organic phase to brine,flow speed,rotate speed and extraction stages in extraction process are discussed in the paper.The result indicates that the rate of extraction and reextraction are more than 97% and 98% respectively under the optimal paramete...