performance comparison among different powdered zeolites for removing low-concentration ammonia nitrogen from water

1、

study of cracking catalysts of mixed zeolites modified by ag and la to endothermic hydrocarbon fuels

银、镧改性混合型吸热碳氢燃料裂解分子筛催化剂的研究

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2、

application of the adsorption potential theory to hydrogen adsorption on zeolites above critical temperature

应用吸附势理论研究氢在沸石上的超临界吸附

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3、

the experimental study of removing low concentration of ammonia nitrogen from the water source by zeolites

沸石去除水源中低浓度氨氮的实验研究

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4、

laboratory study of deep treatment of petroleum wastewater using modified zeolites

改性沸石深度处理石油污水的实验研究

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5、

mechanism of acetylene adsorption on zsm-5 zeolites and characteristics of the surface species

乙炔在ZSM-5分子筛上的吸附机制及吸附态性质

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6、

the result showed that the liquid yield with zxm-19 zeolites catalyst is higher.

试验结果表明，ZXM-19型烷基化催化剂有较高的液体产品收率。

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7、

the degradation was carried out using diluted forms of zeolites zsm-5, usy and mordenite (mord) using a fluidized bed reactor (fbr).

的退化进行了使用稀释形式的分子筛ZSM-5分子筛，超稳Y和丝光沸石（MORD）采用流化床反应器（快堆）。

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8、

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

并对以后USY分子筛的改性进行了展望。

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9、

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。

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10、

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。

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11、

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。

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12、

zeolites are minerals with ion-exchange properties.

沸石是一种具有离子交换性质的矿物。

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13、

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。

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14、

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。

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15、

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。

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16、

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。

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17、

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。

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18、

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。

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19、

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。

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20、

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。

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