日用化学工业2017，Vol.47Issue(5)：257-262,6.DOI:10.13218/j.cnki.csdc.2017.05.004
剑麻皂苷的萃取与絮凝工艺优化研究
Enrichment of sisal saponin from sisal waste liquor by surfactant solution extraction and flocculation
摘要
Abstract
In the process for preparation of sisal fiber,waste liquor that containing sisal saponin is by -produced. In order to make use of the saponin,enrichment process is to be performed. Traditional enrichment process was based upon extraction with an organic solvent. A new approach using a surfactant was tested via a series of experiment. Suitable process conditions were obtained as follows:extracting agent,sodium lauryl sulfate with concentration of 0. 0258 mol/L;ratio of starting material to extracting agent,1:10 (g:mL);pre-soaking time,4 h;ultrasonic power,120 W;extraction time,40 min for three times. The extract was further processed for enrichment of the sisal saponin in 100 mL extract under conditions as:temperature,50℃;adding 20 mL of 1% aluminum chloride polymer,followed by adding 2 mL of 0. 1% cationic polyacrylamide. Under the above mentioned conditions of extraction and flocculation,the flocculated material was hydrolyzed by sulfuric acid. Results show that as comparing with the traditional process,the new approach can increase the product yield for 15. 5%,decrease 81. 2% of acid consumption and 96. 5% of COD discharge per 1 g sisal saponin.关键词
表面活性剂/萃取/絮凝/剑麻皂素Key words
surfactant/extraction/flocculation/sisal saponin分类
化学化工引用本文复制引用
李祥,蔺旺梅,李华锋,黄尚顺..剑麻皂苷的萃取与絮凝工艺优化研究[J].日用化学工业,2017,47(5):257-262,6.基金项目
陕西省科技攻关项目(2016SF-437) （2016SF-437）
未央区科技项目(201411) （201411）
广西科学基金资助项目(2011GXNSFA018047,2015GXNSFBA139036,桂科AB16380113,桂科转1599002-6) （2011GXNSFA018047,2015GXNSFBA139036,桂科AB16380113,桂科转1599002-6）
