化工进展2017，Vol.36Issue(2)：658-664,7.DOI:10.16085/j.issn.1000-6613.2017.02.036
高白度竹纤维的常压提取工艺
Study on the extraction of high whiteness bamboo fiber at atmospheric pressure
摘要
Abstract
To prepare the high whiteness bamboo fiber,the raw material,bamboo powder,was first pre-treated by formic acid/acetic acid/H2O(symbol A). Then,the middle product bamboo cellulose was extracted by formic acid/ acetic acid/H2O2(symbolAp). The effect of formic acid/acetic acid volume ratio,H2O2 dosage,solid-liquid ratio(g/mL),reaction temperature and reaction time on the product yield and whiteness was analyzed using univariate analysis. After that,the effect of NaOH dosage,H2O2 dosage,solid-liquid ratio(g/mL),reaction temperature and reaction time on the product yield and whiteness were discussed in TCF bleaching with NaOH/H2O2system(processP). Simultaneously,the influence of multi-step treatment to extract cellulose was investigated. When the volume ratio of Formic acid/Acetic acid was 40∶60,solid-liquid ratio was 1∶10(g/mL),and dosage of H2O2 solution was 9%(V%),the mixture was first stirred for 0.5h at 60℃,then the reaction temperature was raised to 90℃ and maintained for 2h Under the process condition of 5% H2O2,6% NaOH,solid-liquid ratio 1∶10 (g/mL),stirring at 90℃ for 2h,the whiteness of the product by AAApApPP treatment was up to 90.5%.关键词
竹粉/甲酸/乙酸/全无氯清洁漂白技术/纤维素Key words
bamboo powder/formic acid/acetic acid/TCF/cellulose分类
化学化工引用本文复制引用
周伟,邱祖民,肖建军,杜成成..高白度竹纤维的常压提取工艺[J].化工进展,2017,36(2):658-664,7.基金项目
江西省科技攻关项目（20121BBG70002）。 （）
