该助剂还具有良好的水热稳定性、抗磨损性及合适的粒度分布。
It has good thermal stability, strong abrasion resistance and appropriate particle size distribution.
催化剂活性高,异丁烯选择性好,水热稳定性好,抗重金属能力强。
It is characterized with good activity, good iso-olefins selectivity, hydrothermal stability and heavy metal tolerance.
镧离子也有稳定骨架的作用,更重要的是能提高酸中心的水热稳定性。
Proper increase of La ion exchange degree not only increased the stability of the framework structure but also the hydrothermal stability of acid sites.
催化剂积炭速率慢,具有良好的持氯能力、水热稳定性和结构稳定性。
The catalyst was slow in carbon deposition and good in chlorine retention, high in hydrothermal stability and excellent in structural stability.
与常压合成的相比,高压下合成的MCM - 48具有更高的热稳定性和水热稳定性。
MCM-48 synthesized at high pressure appeared higher thermal and hydrothermal stability than that synthesized at autogenous pressure.
但由于孔壁是无定形结构,酸性较弱和水热稳定性较差,使其在催化领域的应用受到很大限制。
However, its application to petrochemical industry is limited due to the amorphous character of mesopore wall and weak acidity, as well as poor hydrothermal stability.
超稳y分子筛的水热稳定性、抗钒性能和焦炭选择性都优于传统的沸石,适合作为渣油FCC催化剂的活性主体。
For FCC resid processing, USY zeolite is perferred because of its superior hydrothermal stability, vanadium resistance and coke selectivity compared to conventional zeolites.
利用混合阳离子-非离子表面活性剂为模板剂在缓冲体系中成功地合成出具有高热和水热稳定性的MCM - 48介孔材料。
Mesoporous MCM-48 with high thermal and hydrothermal stability has been successfully synthesized in buffer solution by mixed cationic-nonionic surfactant templating pathway.
氧气、水或醇、酸、碱或残留催化剂、硅油、机械外力、填料、聚硅氧烷的链端基等都会影响聚硅氧烷的热稳定性。
Accordingly, the thermal stability of polysiloxanes may be influenced by oxide, water, alcohol, acid, base, residual catalyst, silicone oil, mechanical stress, filler or the end groups of itself.
通过XRD、TEM、FTIR、TG-DTA等多种表征手段分别对有机阴离子柱撑水滑石的晶相结构及其影响因素、晶体形貌、红外性能、热稳定性进行了研究。
The crystal structure and outward appearance, IR property and thermal stability of the organic-anion-pillared hydrotalcites have been studied by XRD, TEM, FTIR and TG-DTA.
TG和DSC分析表明,吸水树脂比剑麻纤维热稳定性好,吸水凝胶中水绝大多数是以自由水的状态存在且高温保水性很好。
TG and DSC show the resin's stability is better than cellulose's and the hydrogel has good keeping-water property, in which the most water was nature water.
而相对含水量、自由水含量、细胞膜热稳定性、可溶性蛋白含量等则有所降低。
While free water content, free water content, cell membrane thermostability and soluble protein content were decreased.
而相对含水量、自由水含量、细胞膜热稳定性、可溶性蛋白含量等则有所降低。
While free water content, free water content, cell membrane thermostability and soluble protein content were decreased.
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