The modified myrica rubra extract suitable for tanning heavy leather at low temperature tanning was prepared by sulfitation with compound containing nitrogen added.
在高温和添加含氮化合物条件下,对杨梅栲胶进行亚硫酸化改性,制备低温鞣制用的栲胶。
The standard method of determining tannin was used to analyze intensive sulfitation tannin extract and the results showed there was only 3.
应用鞣质测定的标准方法对重度亚硫酸化改性栲胶进行分析 ,其鞣质含量仅为 3 。
The title fatiquor is synthesized by sulfitation and composition with other suitable components.
SAA是一种亚硫酸化填充型加脂剂 ,本文对其理化性能、加脂效果、在革中的分布及填充性能等进行了全面考察 ,实验证明该加脂剂是一种性能优异的亚硫酸化加脂剂 ,而且其填充性能突出。
Sulphited soybean lecithin was prepared using soybean lecithin as raw material through four steps:interesterification of soybean lecithin with methanol,esterification with maleic anhydride,neutralization and sulphitation.
通过对大豆磷脂进行酯交换、马来酸酐酯化、中和、亚硫酸化化学改性,合成出亚硫酸化大豆磷脂。
With cottonseed oil as a raw material, systematical studies are done on the preparation techniques of fatliquoring agent through such processes as ester exchange, esterification, oxidation and sulphitation.
本课题以棉籽油为原料,系统地研究了棉籽油经过酯交换→酯化→氧化→亚硫酸化等工艺过程以制定皮革加脂剂的生产方案,并对产物进行了加脂应用试验。
The oil was modified by a series of reaction, such as ester-exchange reaction, sulphated and sulfition.
通过猪油进行酯交换、硫酸化、或进一步亚硫酸化反应 ,再和多种有效成分复配 ,制得猪油改性结合型皮革加脂剂。
The oil was modified by a series of reaction, such as ester -exchange reaction, sulphation and sulfition.
通过植物油进行酯交换、硫酸化、或进一步亚硫酸化反应 ,再和多种有效成分复配 ,制得植物油改性结合型皮革加脂剂。
The oil was modified by a series of reaction, such as ester-exchange reaction, sulphated and sulfition.
通过对回收油进行酯交换、硫酸化、或进一步亚硫酸化反应,再和多种有效成分复配,制得改性结合型皮革加脂剂。
The structure of the product produced by amidation, esterification and sulphited in synthesize sulphited reactive fatliguors and white material on the emulsion were charactherized by Fourier transform infrared Spectroscopy(FTIR).
用傅里叶变换红外光谱对亚硫酸化结合型加脂剂合成过程中产生的酰胺化物、酯化物、亚硫酸化物及乳液上的白色漂浮物的结构进行了表征 ,结果表明合成时发生了预期化学反应 ,乳液上的白色漂浮物为未反应的油脂或酯化
5:3:3 and temperature of alcoholysis, esterification and sulfiting reaction was 150 ℃, 90 ℃ and 75 ℃ respertively.
5:3:3;醇解反应、酯化反应和亚硫酸化反应的温度分别为 150℃、90℃及 75℃时制得了亚硫酸化加脂剂FP -I ,用FTIR对产物的结构进行了表征 ,同时进行了亚硫酸化加脂剂FP -I的应用实
Using pig oil,polyethyleneglycol,maleic anhydride and isulfated(NaHSO3)as raw materials,the fatliquor FP-Ⅱ was preparated when their molar ratio was 1∶35∶3∶3 and temperatures of alcoholysis,esterification and sulfiting reaction were 140℃,90℃ and 75℃respertively.
以猪油、聚乙二醇、顺丁烯二酸酐及亚硫酸氢钠为原料,当三者的摩尔比为1∶3 5∶3∶3及醇解反应、酯化反应和亚硫酸化应反的温度分别为140℃、90℃及75℃时制得了加酯剂FP-Ⅱ,应用实验结果表明该加脂剂具有良好的柔软、丰满耐贮存的特点。
The effect of the major factors such as material proportion, temperature of esterification and sulfiting on sulfiting reaction was investigated.
2及两步酯化反应、亚硫酸化反应的温度和时间依次分别为140℃、90℃、75℃及2h、1h、1h时,制得了亚硫酸化油酸顺丁烯二酸聚乙二醇双酯加脂剂,讨论了影响亚硫酸化反应的主要因素,用FTIR对产物的结构进行了表征,同时进行了亚硫酸化加脂剂的应用实验。
sulfited mimosa extract
亚硫酸化荆树皮浸膏
formaldehyde sodium hydrosulfite
甲醛化连二亚硫酸钠
neutral sulphite semichemical pulp
中性亚硫酸盐半化学浆
sulfite oxidase deficiency
亚硫酸氧化酶缺乏症
determination of chromate, iodide, sulfite, thiocyanate and thiosulfate
铬酸盐、碘化物、亚硫酸盐、硫氰酸盐和硫代硫酸酯的测定
Chemical reagent--Sodium pyrosulfite
GB/T15900-1995化学试剂偏重亚硫酸钠(焦亚硫酸钠)
Study on Sulfurou Acid Calcium Oxidated in the Wet Limestone-gypsum Flue Gas Desulfurization Process;
湿法烟气脱硫过程亚硫酸钙氧化研究
The ammonium sulfite oxidation outside of the tower in ammonia-desulfurization system
氨法脱硫副产物亚硫酸铵的塔外氧化
Kinetics analysis of oxidation process of calcium sulfite in flue gas desulfurization technology
烟气脱硫亚硫酸钙铁催化氧化动力学实验
chlorite-bisulphite redox system
亚氯酸盐一亚硫酸氢盐氧化还原[引发]体系
sulphurous anhydride [ oxide ]
二氧化硫, 亚硫酐
Study on Growth Conditions of Thiobac Illus Ferrooxidans and Adaptation of Low pH and High Ferrous Concentrations
嗜酸氧化亚铁硫杆菌驯化条件的研究
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
sulphuric anhydride
三氧化硫, 硫(酸)酐
Study on Oxidation Kinetics of Ammonium Sulfite in Flue Gas Desulfurization Product;
烟气脱硫产物亚硫酸铵氧化动力学研究
Treatment of aluminium profile chromizing wastewater using calcium sulfite typed flue gas desulfurization residue
亚硫酸钙型脱硫灰处理铝材生产中的铬化废水
Study on oxidation of calcium sulfate in the desulfurization ash of semi-dry sintering flue gas
半干法烧结烟气脱硫灰中亚硫酸钙氧化研究
Study on the technology of preparing polymeric ferric sulphate with Thiobacillus ferrooxidans
氧化亚铁硫杆菌制备聚合硫酸铁的工艺研究