ferric

The ring-opening polymerization mechanism of lactide in the presence of hydroxyl compounds was studied by using ferric ethoxide and ferric n-butoxide as catalysts respectively.

这些结果表明在含羟基物的丙交酯/醇聚体系中,羟基物作为共引发剂参与了丙交酯的开环聚。

At present cultivates the first batch breast milk ferric albuminate iron albuminate transgene cow entered the lactation period.

目前培育的首批人乳基因奶牛已进入泌乳期。

Some improvement was taken on the basis of the traditional process in this paper.Iron was removed with the jarosite process and ferric hydroxid;

本文在传统工艺的基础上对其中的一些阶段提出了改进，除阶段采用针矿法和氢联两步法来除；

The article introduces the determination and computing method of basicity of the polysalt like polymeric aluminum ferric-calcium magnesium salt flocculants.

本文介绍了多元盐如复铝钙镁盐絮凝剂盐基度的测试及其计算方法。

The results shows that polyphosphate ferric sulfate is suitable to decontamination for sulfate, COD turbidness etc. in the wastewater.

结果表明,聚磷硫酸对废水中硫物、COD、悬浮物及浊度等均具有较佳的去除效率。

The research contents of the treatment of cyanogen-containing waste water produced by the acylonitrile plant with new technology of ferric-carbon microelectrolysis are expounded.

文中论述了采用炭微电解的新技术处理丙烯腈装置产生的含氰废水的研究内容。

Synthesis of isoamyl formate, isoamyl acetate, isoamyl propionate, isoamyl butyrate, isoamyl isobutyrate and isoamyl isovalerate by catalysis of hydrated ferric chloride are reported.

研究了氯催成甲酸异戊酯、乙酸异戊酯、丙酸异戊酯、丁酸异戊酯、异丁酸异戊酯和异戊酸异戊酯。