邢立强,庄小雄,郭瑶仙,李婷,程敏,程春祖
XING Li-qiang,ZHUANG Xiao-xiong,GUO Yao-xian,LI Ting,CHENG Min,CHENG Chun-zu

• 1:中国纺织科学研究院有限公司生物源纤维制造技术国家重点实验室

摘要(Abstract)：

采用大孔吸附树脂对Lyocell纤维溶剂浓缩液进行脱色处理,利用单因素考察和正交试验设计方法,对脱色条件进行工艺优化,选择最优组合。以浓缩液脱色率为考察指标,筛选出的最佳大孔吸附树脂为LX-T19,试验结果表明的最优组合为:树脂质量浓度15 g/L,吸附温度50℃,浓缩液p H值11.0,此时浓缩液脱色率达81.05%。进一步进行动态吸附流速优化,选择的最佳流速为2 BV/h。
Macroporous adsorption resin was used to decolorize Lyocell fiber solvent concentrate. The decolorization conditions were optimized by single factor investigation and orthogonal experimental design. Taking the decolorization rate of solvent concentrate as the index, the macroporous adsorption resin LX-T19 was selected as the best. The experimental results showed that the optimal decolorization conditions were as follows: the dosage of resin was 15 g/L, the adsorption temperature was 50 ℃, the pH of solvent concentrate was 11.0, and the decolorization rate of solvent concentrate was 81.05%. Further dynamic adsorption optimization showed that the optimal flow rate was 2 BV/h.

关键词(KeyWords)： 溶剂浓缩液;大孔吸附树脂;脱色率;正交试验
solvent;concentrate;macroporous adsorptive resin;decolorization rate;orthogonal experiment

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2017YFB0309502)

作者(Author): 邢立强,庄小雄,郭瑶仙,李婷,程敏,程春祖
XING Li-qiang,ZHUANG Xiao-xiong,GUO Yao-xian,LI Ting,CHENG Min,CHENG Chun-zu

DOI: 10.16090/j.cnki.hcxw.2021.11.013

参考文献(References)：

• [1]徐虎,徐鸣凤,程春祖,等.流变法研究铜对Lyocell纤维纺丝原液热稳定性的影响[J].合成纤维, 2012, 41(12):13-16.
• [2]任建春,陈平. Lyocell纤维的发展现状及市场预测[J].人造纤维,2020(5):14-19.
• [3]蔡剑.低温多效蒸发组合蒸汽喷射热压缩系统用于NMMO回收[J].合成纤维, 2013, 42(6):14-17.
• [4]郑玉成. Lyocell纤维生产中颜色变化的原因分析[J].合成纤维,2018, 47(8):17-18, 23.
• [5]陈进国. Lyocell纤维纺丝凝固浴吸附脱色动力学研究[J].天津纺织科技, 2017(1):9-11.
• [6]黄锦锋. Lyocell纤维纺丝凝固浴离子交换树脂脱色研究[J].福建轻纺, 2017(9):51-54.
• [7]汪洪武,刘艳清.大孔吸附树脂的应用研究进展[J].中药材, 2005,28(4):353-356.
• [8]潘峰,阮国永,杨建波,等.大孔吸附树脂纯化吴茱萸果实多糖工艺优化[J/OL].现代食品科技, 2021, 37(9):1-11.