The oxidation of dibenzothiophene(DBT) in decalin(as solvent) was conducted using oil-soluble oxidant cyclohexanone peroxide(CYHPO).The effects of oxidant amount,reaction temperature,reaction time were investigated in...The oxidation of dibenzothiophene(DBT) in decalin(as solvent) was conducted using oil-soluble oxidant cyclohexanone peroxide(CYHPO).The effects of oxidant amount,reaction temperature,reaction time were investigated in detail.The results showed that under the condition of ratio of CYHPO to sulfur 2.5∶1,reaction temperature 100℃ and reaction time 3h,the desulfurization rate was up to 87%.The little water produced after oxidation was removed by molecular sieve adsorption.The recovery ratio of model oil was up to 98% after the treatment with centrifugation and adsorption.展开更多
用本体加成-聚合工艺,合成了一种新型单组分、无溶剂、室温湿固化端异氰酸酯-聚丙烯酸酯共聚物。考察了合成工艺、NCO/OH摩尔比、异氰酸酯种类、丙烯酸酯单体对其粘接性能及丙烯酸酯转化率的影响,用红外光谱对生成物的结构进行了表征。...用本体加成-聚合工艺,合成了一种新型单组分、无溶剂、室温湿固化端异氰酸酯-聚丙烯酸酯共聚物。考察了合成工艺、NCO/OH摩尔比、异氰酸酯种类、丙烯酸酯单体对其粘接性能及丙烯酸酯转化率的影响,用红外光谱对生成物的结构进行了表征。实验表明,M D I/PM D I质量比为1/2,NCO/OH摩尔比为15/1,丙烯酸酯单体采用半连续加料法,过氧化环己酮/N,N-二甲基苯胺复合引发,丙烯酸酯单体转化率可达到100%。用于橡木/聚丙烯(PP)粘接,PP破坏,剥离强度可达到15.4 N/cm。展开更多
文摘The oxidation of dibenzothiophene(DBT) in decalin(as solvent) was conducted using oil-soluble oxidant cyclohexanone peroxide(CYHPO).The effects of oxidant amount,reaction temperature,reaction time were investigated in detail.The results showed that under the condition of ratio of CYHPO to sulfur 2.5∶1,reaction temperature 100℃ and reaction time 3h,the desulfurization rate was up to 87%.The little water produced after oxidation was removed by molecular sieve adsorption.The recovery ratio of model oil was up to 98% after the treatment with centrifugation and adsorption.
文摘用本体加成-聚合工艺,合成了一种新型单组分、无溶剂、室温湿固化端异氰酸酯-聚丙烯酸酯共聚物。考察了合成工艺、NCO/OH摩尔比、异氰酸酯种类、丙烯酸酯单体对其粘接性能及丙烯酸酯转化率的影响,用红外光谱对生成物的结构进行了表征。实验表明,M D I/PM D I质量比为1/2,NCO/OH摩尔比为15/1,丙烯酸酯单体采用半连续加料法,过氧化环己酮/N,N-二甲基苯胺复合引发,丙烯酸酯单体转化率可达到100%。用于橡木/聚丙烯(PP)粘接,PP破坏,剥离强度可达到15.4 N/cm。
