研究了用次氯酸钙溶液对三甘醇二庚酸酯进行脱色时温度、时间、洗脱次数的影响。
Influence of temperature, time and washing times on the decolorization of triethylene glycol diheptylate by using the solution of calcium hypochlorite was studied.
以间甲基苯甲酸和二甘醇为原料，钛酸四丁酯为催化剂合成了二乙二醇二间甲基苯甲酸酯。
Diethylene glycol binary m-methyl benzoate was synthesized with diethylene glycol and m-methyl benzoic acid in the presence of tetrabutyl titanate.
将涤纶废产物用二甘醇和三元醇经酯基转移合成齐聚酯多元醇，并用其制备聚氨酯硬质泡沫塑料。
A study was conducted to synthesize oligoester alcohols from poly (ethylene terephthalate) production wastes via transesterification with diethylene glycol and tribasic alcohol.
开发了一种用磷钨酸铝催化合成二甘醇二苯甲酸酯(DEDB)的新方法。
A novel preparation method to synthesize DEDB by using aluminium phosphotungstate catalyst was developed.
以硫代二甘醇和硬脂酸为原料，选用对甲苯磺酸为催化剂，二甲苯为带水剂，合成了新型抗氧剂硫代二甘醇二硬脂酸酯。
A new antioxidant dithiodinglycol distearictate was synthesized starting from thiodiglycol and stearic acid using p-toluenesulfonic acid as catalyst and xylene as water carrier.
研究了作为制备新型内硝基冠醚原料的中间体2-硝基-1，3-苯二酚（NB）及多甘醇双对甲苯磺酸酯（OEDT）的合成。
Synthesis of 2 nitro 1,3 benzenediol( NB) and oligoethyleneglycol ditosylate(OEDT) used as material for inner nitrocrown ether are studied.
以二甘醇、碳酸钠、氯丙烯和二氧化碳为原料合成二甘醇双碳酸烯丙酯。
Diglycol allyl percarbonate is synthesized by diglycol, sodium carbonate, chloropropene and carbon dioxide.
研究了在实验室条件下，以硫酸、对甲苯磺酸为催化剂合成二甘醇二醋酸酯的方法。
Diglycol diacetate had been obtained with sulfuric acid or toluene-p-sulfonic acid as catalyst in lab.
用于催化酯化合成二甘醇二苯甲酸酯增塑剂 ，处理后固体铌酸的催化活性和重复使用寿命有明显提高。
It was observed that the catalytic activity and the usable life of the treated niobic acid for synthesis of diethylene glycol dibenzoate was apparently higher than that of the untreated niobic acid.
用于催化酯化合成二甘醇二苯甲酸酯增塑剂 ，处理后固体铌酸的催化活性和重复使用寿命有明显提高。
It was observed that the catalytic activity and the usable life of the treated niobic acid for synthesis of diethylene glycol dibenzoate was apparently higher than that of the untreated niobic acid.
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