摘要
以青海察尔汗盐湖提钾后老卤为原料,以磺化煤油为稀释剂,从萃取剂浓度、酸度、相比、萃取时间、萃取等温线5个方面加以试验,获得了2-乙基-1,3-己二醇(简称二元醇)从卤水中萃取提硼的最佳试验条件,并与2-乙基己醇(简称一元醇)和磺化煤油的萃取体系进行比较,得出二元醇的萃取效果高于一元醇的结论。二元醇从卤水中萃取提硼的最佳试验条件:萃取剂体积分数50%,pH为2,有机相与卤水体积比为1∶2,萃取时间10m in,二元醇对硼酸的萃取容量为22g/L。
Taking the brines from Qinghai Chaerhan salt lakes as raw material, sulfonated kerosine as diluting agent, the experiment of extracting boric acid from brines by 2 - ethyl - 1,3 - haxanediol is carried out. The concentration of extractant,acidity, the ratio of organic phase to brine, the time of extraction and extration isotherm are investigated. The optimal experimental parameters are obtained and as follows：the extractant 50% （vol）, pH 2, the ratio of organic phase to brine 1：2 and the extraction time 10 min. The extraction capacity（ extractant to boric acid） is 22 g/L. Compared with 2 - ethyl - hexaneol and sulfonated kerosine system,the extracting efficiency of the former is better than the later.
出处
《无机盐工业》
CAS
北大核心
2006年第3期46-47,共2页
Inorganic Chemicals Industry
作者简介
韩丽娟（1978-），女，在读硕士，从事卤水提硼工艺的研究与开发。联系方式：hanlijuan@mails．gucas．ac．cn
