石油化工2018，Vol.47Issue(5)：437-442,6.DOI:10.3969/j.issn.1000-8144.2018.05.007
木质素磺酸盐的羟甲基化研究
Hydroxymethylation of lignosulfonates
摘要
Abstract
Hydroxymethyl sodium lignin sulfonate(HSL) was synthesized with sodium lignosulfonate(SL) and formaldehyde as raw materials and water as solvent under alkaline conditions, and the effects of reaction temperature,reaction time,pH,solvent dosage and quantity of added formaldehyde on the hydroxymethyl content of the HSL were analyzed. A quadratic regression equation of the hydroxymethyl content of the HSL was established. Based on a single factor experiment,the synthesis process of the HSL was optimized by Box-Behnken design in response surface methodology. The structures and morphologies of the raw materials and the product were characterized by FTIR,1H NMR and ESEM. The characterization results showed that the target product HSL was synthesized. The experimental result showed that the preferred conditions for the synthesis of the HSL were pH 11, reaction temperature 90 ℃,reaction time 5 h,m(SL):m (formaldehyde) 1:0.15,solvent dosage 20 mL. Under these conditions,the hydroxymethyl content of the HSL was 12.11%. The difference between the experimental result and a predicted value is small,thereby indicating a good fitting degree of the equation and allowing for effective prediction of an actual result.关键词
木质素磺酸钠/甲醛/羟甲基化/结构表征/响应面法Key words
sodium lignosulfonate/formaldehyde/hydroxymethylation/structure characterization/response surface method分类
化学化工引用本文复制引用
郭睿,王宁,张瑶,韩双,高弯弯..木质素磺酸盐的羟甲基化研究[J].石油化工,2018,47(5):437-442,6.基金项目
陕西省重点研发计划项目(2017ZDXM-GY-087) （2017ZDXM-GY-087）
陕西省重点研发计划项目(2017GY-185). （2017GY-185）
