查询词典 propylene glycol

The epoxidation of propylene to propylene oxide, using cumene hydroperoxide as oxidant, molybdenum-glycol complex as catalyst and ethanol as solvent, has been investigated.

研究了以钼－醇配合物为催化剂，过氧化氢异丙苯为环氧化剂，乙醇为溶剂的丙烯一步氧化制环氧丙烷的反应。

The mechanism of epoxidation of propylene catalyzed by Mo-glycol complex is discussed also.

并对丙烯的催化环氧化反应机理进行了讨论。

Ingredients: Water,Lauric Acid,Myristic Acid,Stearic Acid,Propylene Glocol,Potassium Hydroxide,Cocamidopropyl Betaine,Starch Hydroxypropyltrimnium Chloride,Sodium Laureth Sulfate,Glycol Distearate,Lavandula Angustifolia Oil,Creatine,Tetrasodium Edta,Perfume,Dmdm Hydantoin.

成分： 去离子水，月桂酸，肉豆蔻酸，硬脂酸，丙二醇，氢氧化钾，椰油酰胺丙基甜菜碱，淀粉羟丙基三甲基氯化铵，月桂醇聚醚硫酸钠，乙二醇双硬脂酸酯，薰衣草精油，肌酸，乙二胺四乙酸四钠，香精，DMDM 乙内酰脲。

Under distillation conditions, including a bottoms temperature of greater than about 55 DEG C and less than about 75 DEG C, an overhead or side-cut distillate stream containing a purified propylene oxide is obtained with low yield loss of propylene oxide to propylene glycols and other glycol heavies.

在包括大于大约55℃且小于大约75℃底部温度的蒸馏条件下，得到含有纯环氧丙烷的塔顶馏分流或侧馏分流且具有低的从环氧丙烷转化到丙二醇和其他二醇重质的产率损失。

The enhancement ability of four different enhancers such as azone, propylene glycol,oleic acid and lauryl alcohol,was investigated when used either uniquely or combinatively each other at random.

对氮酮、丙二醇、油酸、月桂醇4种透皮吸收促进剂单独应用和任意2种合用的促渗效果进行考察。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。