八面沸石在精细有机合成中的催化作用研究——XV脱铝超稳Y催…

研究脱铝ＵＳＹ催化羧酸与醇的直接酯化反应，考察了催化剂硅铝比对酯化反应的影响及不同类型酸醇酯化的一般规律，结果表明，脱铝ＵＳＹ是酯化反应的良好催化剂。     

The Preparation of Fragrance and Health-Care Microcapsule Agent and Its Application on Fabrics

The technology of microcapsule was employed in this paper to prepare fragrant microcapsule agent, in which the core material was lavender oil, and the wall material polyurethane was formed from a reaction with 2, 4-tolylene diisocyanate （ TDI ） and poly （ ethylene glycol） （PEG） by interracial polymerization method. Through single factor and orthogonal experiments, the optimum technology conditions have been got as follows： the molecular weight of PEG 400, core/wall ration 1 ： 2, disperser sodium alginate （SA） 0.15%, emulsifier Poly（vinyl alcohol） （PVA） 1%, emulsifying speed 9 500 r/min, emulsifying time 5 min and reaction time 2 h. The microcapsule fragrant agent, prepared under the optimum conditions, was applied on the fabrics and a kind of good control-released fragrant fabric with health-care function was obtained.     

FeⅡ对铁酸锌生成反应的催化作用研究

研究了微量Fe^Ⅱ对铁酸锌生成反应的催化作用,测定了反应的活化能,探讨了催化剂种类、用量及反应物浓度对相转化过程的影响．结果表明,该反应的活化能为48．31kJ／mol,催化剂的用量对相转化速率影响较大,当n（Fe^Ⅱ）／n（Fe^Ⅲ）一定时,相转化速率与反应体系的初始浓度无关。