Equilibrium behavior of boric acid extracted by aliphatic 1,3-diols

XIONG Yan; BAO Zongbi; XING Huabin; SU Baogen; YANG Yiwen; REN Qilong

doi:10.3969/j.issn.0438-1157.2012.11.024

您当前的位置：

首页 >

文章列表页 >

Equilibrium behavior of boric acid extracted by aliphatic 1,3-diols

更新时间：2025-12-10

- Equilibrium behavior of boric acid extracted by aliphatic 1,3-diols
- CIESC Journal Issue 11, Pages: 3546-3552(2012)
- 作者机构：
  
  浙江大学生物质化工教育部重点实验室, 化学工程与生物工程学系,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.11.024
  CLC： 652.62TQ128+.54
- Online First：05 November 2012，
  
  Published：05 November 2012
- 稿件说明：
移动端阅览
XIONG Yan, BAO Zongbi, XING Huabin, et al. Equilibrium behavior of boric acid extracted by aliphatic 1,3-diols[J]. CIESC Journal, 2012, (11): 3546-3552.
DOI：

XIONG Yan, BAO Zongbi, XING Huabin, et al. Equilibrium behavior of boric acid extracted by aliphatic 1,3-diols[J]. CIESC Journal, 2012, (11): 3546-3552. DOI： 10.3969/j.issn.0438-1157.2012.11.024.

摘要

基于1

3-二元脂肪醇的溶剂萃取法在盐湖卤水提硼方面有广阔的应用前景

系统研究了两种1

3-二元脂肪醇萃取剂:2-乙基-1

3-己二醇(EHD)和2-丁基-2-乙基-1

3-丙二醇(BEPD)对硼酸的萃取性能

分别考察了萃取剂浓度、原料液pH、硼酸浓度、氯化镁浓度以及温度等因素对硼酸分配系数的影响。实验结果表明

温度为303.15 K

原料液中硼酸浓度为0.0185 mol·L-1

EHD和BEPD甲苯溶液中浓度均为0.4 mol·L-1时

硼酸的分配系数分别达到9.43和8.25。高浓度的萃取剂和较低的原料液pH条件对提高分配系数有利;分配系数随原料中硼酸浓度和反应温度的升高而降低

3-二元脂肪醇萃取硼酸的过程为放热过程;氯化镁存在下的盐析效应也有利于硼酸的萃取分配。

Abstract

Solvent extraction based on aliphatic 1

3-diols is a promising technique for the recovery of boric acid from salt lake brine.In this work

two diols

2-ethyl-1

3-hexanediol(EHD)and 2-butyl-2-ethyl-1

3-propanediol(BEPD)

were selected as extractants and toluene was used as diluent.The effects of extractant concentration

pH of brine

initial boric acid concentration

magnesium chloride concentration

and temperature on the distribution coefficients of boric acid were systematically investigated.Distribution coefficients of boric acid up to 9.43 and 8.25 were obtained from the boric acid aqueous solutions with the initial concentration of 0.0185 mol稬-1 when using toluene containing 0.4 mol稬-1 EHD and BEPD

respectively

as organic phases at 303.15 K.Higher extractant concentration or lower pH is favorable to the extraction.However

the distribution coefficients decrease gradually with the increase of boric acid concentration and temperature.The extraction of boric acid with aliphatic 1

3-diols is an exothermic process.The salting-out effect of magnesium chloride enhances the extraction performance.

关键词

Keywords

references

Views

192

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on dissolution kinetics of erythromycin thiocyanate

Optimization of ultrasonic-assisted extraction of PPS oligomers from PPS industrial waste by response surface methodology

Evaluating large language models for prediction of pulsed column extraction process for spent fuel reprocessing

Lithium extraction by n-octyl salicylate extraction system: influence of structural alterations in the synergist on extract performance

Research progress of extraction technology in processing different distillate by grade and composition

Related Author

SUN Yinghua

WANG Yining

SONG Saiyi

LI Wuying

XIA Shuqian

WANG Minghui

XU Haibing

ZHU Yingdan

Related Institution

School of Chemical Engineering and Technology, Tianjin University

College of Chemical Engineering, Zhejiang University of Technology

Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology,Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences

China Institute of Atomic Energy

School of Computer Science, University of South China

⁰