Kinetics of Forward Extraction of Boric Acid from Salt Lake Brine by 2-Ethyl-1,3-hexanediol in Toluene Using Single Drop Technique

LÜ Jianhua; LIU Jidong; SUN Yujie; LI Chunli

doi:10.1016/S1004-9541(14)60059-8

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Kinetics of Forward Extraction of Boric Acid from Salt Lake Brine by 2-Ethyl-1,3-hexanediol in Toluene Using Single Drop Technique

催化、动力学与反应工程 | Updated：2026-01-06

- Kinetics of Forward Extraction of Boric Acid from Salt Lake Brine by 2-Ethyl-1,3-hexanediol in Toluene Using Single Drop Technique
- Chinese Journal of Chemical Engineering Issue 5, Pages: 496-5021004-954160059-8(2014)
- Affiliations：
  
  School of Chemical Engineering, Hebei University of Technology,Tianjin,China,300130
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(14)60059-8
  CLC：
- Published：2014
- Accepted：
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LÜ Jianhua, LIU Jidong, SUN Yujie, et al. Kinetics of Forward Extraction of Boric Acid from Salt Lake Brine by 2-Ethyl-1,3-hexanediol in Toluene Using Single Drop Technique[J]. Chinese Journal of Chemical Engineering, 2014, (5): 496-5021004-954160059-8.
DOI：

LÜ Jianhua, LIU Jidong, SUN Yujie, et al. Kinetics of Forward Extraction of Boric Acid from Salt Lake Brine by 2-Ethyl-1,3-hexanediol in Toluene Using Single Drop Technique[J]. Chinese Journal of Chemical Engineering, 2014, (5): 496-5021004-954160059-8. DOI： 10.1016/S1004-9541(14)60059-8.

摘要

Abstract

The kinetics of forward extraction of boric acid from salt lake brine by 2-ethyl-1

3-hexanediol in toluene was investigated using the single drop technique. The factors affecting the extraction rate include interfacial area between aqueous phase and organic phase

initial concentration of boric acid in aqueous phase

initial concentration of 2-ethyl-1

3-hexanediol in organic phase

and extraction temperature. The experimental results show that the extraction rate increases with the increase of the initial concentration of boric acid and 2-ethyl-1

3-hexanediol

interfacial area of two phases

and temperature. With the temperature-dependence study

it is showed that the extraction is a diffusion-controlled process. The kinetic equation is presented for pH 1.0 in the aqueous phase and temperature of 318 K.

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