the development prospects for modification of usy zeolites were put out.

1、

hzsm-5, hm and hy zeolites were used as catalysts for vapor-phase esterification of acetic acid with ethanol in fix a-bed reactor.

本文用HZSM-5，HM及HY沸石作催化剂，在固定床反应器内，对醋酸和乙醇的气相酯化反应进行了研究。

互联网摘选

2、

the influence reaction time on crystal structure of the zeolites was investigated.

考察了酸的加入量、反应温度和反应时间对分子筛晶体结构的影响。

互联网摘选

3、

the hydroxylation of benzene and phenol with h2o2 was performed using various ion exchanged y zeolites.

通过Y型沸石不同的离子交换，可以通过与过氧化氢（H2O2）反应进行苯和苯酚的羟化。

互联网摘选

4、

zeolites are minerals with ion-exchange properties.

沸石是一种具有离子交换性质的矿物。

互联网摘选

5、

typical minerals in these facies include the zeolites, albite, and quartz.

在这些条件下出现的典型矿物有沸石、钠长石、石英和葡萄石。

互联网摘选

6、

zsm-5 zeolites were synthesized in-situ on kaolin microspheres by hydrothermal crystallization method from amine-free system.

无胺体系中，采用水热法在焙烧高岭土微球上原位晶化合成了ZSM-5分子筛。

互联网摘选

7、

composites of micro-mesoporous zeolites is a kind of new catalytic material greatly concerned by many such researchers.

微孔—介孔复合分子筛是近年来沸石研究人员颇感兴趣的一类新催化材料。

互联网摘选

8、

zeolites zsm-5 and y can adsorb the polycyclic aromatic hydrocarbons and nitrosamines in gaseous phase, and reduce the pollution of smoking.

使用ZSM-5和Y沸石吸附气相中的多环芳烃和亚硝胺，能减少吸烟对于环境的污染。

互联网摘选

9、

zeolites, clay minerals, and asbestos are important nonmetallic minerals.

沸石、粘土矿物及石棉都是重要的非金属矿物。

互联网摘选

10、

modified on the usy zeolites, modulated its structure and the surface of acidity, in order to improve its performance.

对USY分子筛进行改性，调变其结构和表面酸性，可以达到改善其催化性能的目的。

互联网摘选

11、

calculations on the zeolites acidity and structures of adsorbed species also give results in agreement with those from experiments.

沸石分子筛中酸性和吸附态结构的计算，也得到了与实验相一致的结果。

互联网摘选

12、

the amount of water added during the preparation influences the amphiphilic properties of the zeolites.

水的添加量对沸石催化剂的两亲性有显著影响。

互联网摘选

13、

the instant invention relates to a process for removing ethene from biological sources using metal ion exchanged titanium zeolites.

本发明涉及一种使用金属离子交换的钛沸石从生物源中除去乙烯的方法。

互联网摘选

14、

so far, some reports about magnetic zeolites synthesis have been presented.

迄今为止，有关磁性沸石合成已见报道。

互联网摘选

15、

nanosized zeolites have gained interest recently. it has been used in refining and petrochemical industries.

奈米沸石在近年来日益受到重视，炼油业及石化业已有很多制程使用它。

互联网摘选

16、

this article introduced the general characteristics of adults with learning disabilities, and analyzed deeply the characteristics of attention, memory, thinking, and intelligence of adults with learning disabilities. finally, the educational intervention based on cognitive characteristics for adults with learning disabilities was explored.

介绍了成人学习不良者的一般特点，并深入分析了成人学习不良的注意、记忆、思维、智力等方面的认知特征，探讨了依据认知特征对成人学习不良者进行教育干预的模式和原则。

互联网摘选

17、

paying attention to the minor's quality education, for example, to guide their healthy use of the mass media, and resist the bad influence of media initiatively, is a pressing subject and the common responsibility of educational worker and media worker.

重视对未成年人的媒介素养教育，引导他们健康使用大众传媒、主动抵御媒介的不良影响，是教育工作者和传媒工作者的共同责任和紧迫课题。

互联网摘选

18、

the educational methods to make undergraduates form good habits and rectify bad behaviors have been emphatically clarified in this paper.

重点探讨大学生良好行为塑造和不良行为矫正的教育方法。

互联网摘选

19、

learning disability is universally seen in primary and secondary education, which results from a variety of reasons.

学业不良是基础教育阶段一个普遍存在的现象，而引起学业不良的主要原因之一是情感因素。

互联网摘选

20、

active and healthy learning atmosphere conducive to educational conversion of ld students;

积极健康的学习氛围有利于学业不良学生的教育转化；

互联网摘选