Study of simultaneous separation of lignosulfonate and xylooligosaccharides from magnesium bisulfite pretreated wheat straw spent liquor

LIU Lei; REN Jiwei; LIU Xinlu; ZHENG Zhaojuan; LI Xin; OUYANG Jia

doi:10.11949/j.issn.0438-1157.20180064

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Study of simultaneous separation of lignosulfonate and xylooligosaccharides from magnesium bisulfite pretreated wheat straw spent liquor

更新时间：2025-12-10

- Study of simultaneous separation of lignosulfonate and xylooligosaccharides from magnesium bisulfite pretreated wheat straw spent liquor
- CIESC Journal Issue 8, Pages: 3678-3685(2018)
- 作者机构：
  
  1. 南京林业大学化学工程学院,江苏,南京,210037
  2. 南京科技职业学院生物与环境学院,江苏,南京,210048
  3. 南京林业大学林学院,江苏,南京,210037
  4. 林木遗传与生物技术省部共建教育部重点实验室,江苏,南京,210037
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180064
  CLC： Q351
- Online First：05 August 2018，
  
  Published：05 August 2018
- 稿件说明：
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LIU Lei, REN Jiwei, LIU Xinlu, et al. Study of simultaneous separation of lignosulfonate and xylooligosaccharides from magnesium bisulfite pretreated wheat straw spent liquor[J]. CIESC Journal, 2018, (8): 3678-3685.
DOI：

LIU Lei, REN Jiwei, LIU Xinlu, et al. Study of simultaneous separation of lignosulfonate and xylooligosaccharides from magnesium bisulfite pretreated wheat straw spent liquor[J]. CIESC Journal, 2018, (8): 3678-3685. DOI： 10.11949/j.issn.0438-1157.20180064.

摘要

分别采用有机溶剂萃取法、超滤法、大孔树脂吸附法、离子交换法分离提取亚硫酸氢镁预处理麦秆废液中的木质素磺酸盐和低聚木糖。研究结果表明超滤法不能达到分离目的，有机溶剂沉淀和大孔树脂吸附可实现木质素磺酸镁的纯化，采用D380离子交换树脂进行离子交换层析可将废液中低聚木糖和木质素磺酸镁完全分离，回收所得低聚木糖和木质素磺酸盐纯度分别可达63.95%和91.28%。因此，D380树脂固定床离子交换法是一种简单有效的提取废液中高附加值产品的方法，可实现亚硫酸氢镁预处理麦秆废液的高值化利用，具有强劲的市场应用潜力。

Abstract

Using solvent extraction

ultrafiltration

macroporous resin adsorption

and ion exchange methods

lignosulfonate and xylooligosaccharides were separated from magnesium bisulfite pretreated wheat straw spent liquor. The results showed that the ultrafiltration cannot achieve the purpose of separation. The magnesium lignosulfonate can be purified by organic solvent extraction and macroporous resin adsorption. D380 ion exchange resin was selected to completely separate xylooligosaccharides and lignosulfonate by ion exchange fixed bed simultaneously

the purity of recovered xylooligosaccharides and lignosulfonate could reach 63.95% and 91.28% respectively. Thus

ion-exchange fixed bed packed with D380 is an effective and simple way to recover high-valued chemicals from spent liquor

which achieved complete utilization of magnesium bisulfite pretreated wheat straw spent liquor with robust market prospects.

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