The combination of infrared spectra analysis and 13C NMR was used to identify LCC formed during kraft cooking.
以蓝花楹为原料提取木质素-碳水化合物复合体(LCC),并对LCC的结构进行分析,同时模拟硫酸盐法蒸煮过程,采用蒸煮的方法对LCC进行处理,并对处理后的产物进行红外光谱和核磁共振分析,研究蓝花楹LCC的结构变化,探讨其在硫酸盐法蒸煮过程中LCC的形成和降解情况。
The infrared spectra analysis and()~(13)C-NMR were used to identify the LCC formed during kraft cooking.
在此基础上,模拟硫酸盐法蒸煮过程,将合成的木素模型物和典型的半纤维素组成部分(木聚糖、木糖)进行蒸煮,然后利用酸析沉淀木素、乙酸乙酯抽提的方法将蒸煮后的产物分级,并利用FT-IR1、3C-NMR对分级后的各个部分进行分析,探讨传统硫酸盐法制浆过程中木素-碳水化合物复合体(LCC)的形成机理。
Chemical components of four species of bamboo in eastern Guangdong have been analyzed,and the kraft cooking of the four species of bamboo and the mixed bamboo have been carried out.
本文分析了粤东地区 4种竹子的化学成分 ,进行了硫酸盐法蒸煮试验。
The conditions were: water prehydrolysis for 120 minutes at 170 ℃,followed by kraft pulping for 90 minutes at 165 ℃,with active alkali charge 14%(Na2O),sulfidity 20.
本文对楠竹制溶解浆的工艺进行了优化,优化工艺是:在170℃下预水解120min;然后采用硫酸盐法蒸煮,蒸煮条件为:用碱量14%(Na2O计),硫化度20。
This paper studied the relationships between the yield,lignin-free yield,viscosity of the pulp,consumption of effective alkali in the cooking liquor and kappa number of the pulp during kraft pulping of eucalyptus.
研究了不同条件下速生桉木硫酸盐法蒸煮的浆料得率、不含木素的浆料得率、黏度及有效碱的消耗与卡伯值的关系。
The methodology of cooking is kraft pulping,and the method of bleaching is total chlorine-free(TCF).
蒸煮工艺采用常规硫酸盐法蒸煮,漂白采用全无氯(TCF)漂白。
Comparison of the Mechanism in Sulfate and Sulfite Cookingof Amur Silver Grass Part I. Comparison of Delignification
荻在硫酸盐法和亚硫酸盐法蒸煮中反应历程的比较——第一部分 脱木素的比较
The Change of Lignin Structure during Kraft Cooking of MWL from Jacaranda copaia
蓝花楹磨木木素在硫酸盐法蒸煮过程中的降解及与多糖的缩合
Mechanism of the Formation and Degradation of LCC during Kraft Pulping;
硫酸盐法蒸煮过程中LCC的形成与降解机理的研究
Study on the Technique of Black Liquor Pretreatment and the Kinetic of Deliginification for Fast Growing Eucalyptus Kraft Pulp Cooking;
速生桉硫酸盐法蒸煮黑液预处理技术及其脱木素动力学研究
Degradation of Milled-wood Lignin and Its Condensation with Xylose during Kraft Cooking
磨木木质素在硫酸盐法蒸煮过程中的降解及与木糖的缩合
Topochemistry of Delignification in Kraft and Alkaline-EtOH Cooking of Amur Silver Grass
荻纤维硫酸盐法和碱乙醇法蒸煮脱木素区域化学
Study of the On--Line Pulp Kappa Number Soft-Sensing Technique During Bamboo Batch Kraft Pulping;
竹子硫酸盐法间歇蒸煮过程纸浆Kappa值在线软测量技术研究
Study on the Kraft Pulping Process of Eucalyptus Urophylla with High Kappa Number and the Pulp Properties
高卡伯值尾叶桉硫酸盐浆的蒸煮及其性能研究
Sulphite pulp: Acid pulp made from wood chips cooked under pressure in a solution of bisulphite of lime.
亚硫酸盐浆:把木片在亚硫酸钙溶液内加压蒸煮而成的酸性浆。
Nabil M.Hassan and Samia A.Helmy Department of Chemistry, Faculty of Science, University of Cairo,Giza(Egypt)
埃及蔗渣制溶解浆——用碱性硫化物、亚硫酸盐及硫化物—亚硫酸盐溶液蒸煮
Analysis of the Saccharide Composition obtained from Digestion of Amur Silver Grass with Sulfate Process by Gas Chromatography of Acetylated Aldononitriles
应用糖腈乙酰酯衍生物气相色谱法研究荻的糖类组分及其在硫酸盐蒸煮过程中的变化
Soda pulp: Pulp produce from hardwood chips cooked in caustic soda. See Sulphate pulp.
苏打浆:把硬木片放入苛性钠内蒸煮成的浆。参阅硫酸盐浆。
During green liquor pretreatment-kraft pulping process, both pretreatment and kraft cooking variables influence the carboxyl groups content of the pulp.
绿液预处理和硫酸盐蒸煮工艺参数影响纸浆的羧基含量。
Study of AQ Effectiveness during Kraft-AQ Pulping
蒽醌在硫酸盐制浆中的溶解特性及对蒸煮的影响
The effect of cooking additives on potassium sulfite straw cooking
蒸煮助剂对稻麦草亚硫酸钾蒸煮的作用
Sulphate pulp: Alkaline pulp made from wood chips cooked under pressure in a solution of caustic soda and sodium sulphide.
重硫酸盐浆:把木片在苛性钠和硫酸钠溶液内加压蒸煮而成的硷性浆。
Comprehensive Utilization of Waste Liquor from White Paper Mulberry Bast Peroxide Oxalate Pulping
白构皮过氧化氢草酸盐法蒸煮废液综合利用方法的研究
Effects of Phosphates on Texture of Western-Style Cooked Ham;
三种磷酸盐对西式蒸煮火腿质构影响研究