1) Si/Al ratio
硅铝比
1.
Study of the effects of Si/Al ratio of HZSM-5 on the direct synthesis of DME;
HZSM-5型分子筛硅铝比对一步法合成二甲醚的影响
2.
Determination of Si/Al Ratio of Molecular Sieve by X-Ray Diffraction;
XRD法测定沸石分子筛中硅铝比
3.
The direct synthesis of dimethyl ether was studied over the bifunctional catalysts of mechanical mixed commercial methanol synthesis catalysts(CuO/ZnO/Al2O3) and dehydration catalysts HZSM-5 with different Si/Al ratio(25,38,50 and 150) in a fixed-bed and high-pressure reactor.
采用固定床高压反应装置,以工业用(CuO/ZnO/A l2O3)作为甲醇合成催化剂,四种不同硅铝比(硅铝比为25、38、50和150)的HZSM-5作为甲醇脱水催化剂,二者机械混合制备出一步法合成二甲醚双功能催化剂。
2) silica alumina ratio
硅铝比
1.
ZSM 5 zeolites with high silica alumina ratio were synthesized by using n butylamine as template at temperature range of 160-180℃ for 28-40h with a put in silica alumina ratio range of 100-300.
在实验室以正丁胺为模板剂,在晶化温度160～180℃,晶化时间28～40h,投料硅铝摩尔比100～300的条件下,合成出高硅铝比的ZSM5分子筛,并制备了FCC催化剂。
3) SiO_2/Al_2O_3 ratio
硅铝比
1.
The angle of every diffraction line of ZSM-5 molecular sieve determinedby X-raydiffraction, we obtained accurate lattice constant by using the least square method, and SiO_2/Al_2O_3 ratio of ZSM-5 molecular sieve according to empirical formula of lattice constant connectedwith SiO_2/Al_2O_3 ratio.
用ｘ射线衍射最小二乘法测定ＺＳＭ－５分子筛的晶胞参数，经ＺＳＭ－５分子筛硅铝比与晶胞参数关联的经验公式，得到ＺＳＭ－５分子筛的硅铝比。
2.
The results indi- cated that SiO_2/Al_2O_3 ratio in the gel was an important factor affecting the product composition.
结果表明,凝胶硅铝比是影响产物晶相的重要因素。
3.
So far the synthesis of SiO_2/Al_2O_3 ratio range is from 20 to 90, that restrict the application of ZSM-22 to a certian extent.
由于ZSM-22具有独特的孔道结构,在烷烃异构化反应中具有较好的选择性,到目前为止,已报道的ZSM-22分子筛骨架硅铝比n(Al_2O_3)/n(Si02)局限在20-90的范围内,因而其催化应用受到一定程度的限制。
4) Si/Al
硅铝比
1.
A PERSONAL COMPUTER BASED SOLID STATE NMR SIMULATION SYSTEM FOR Si/Al RATIO DETERMINATION OF Y ZEOLITES;
用高分辨固体核磁共振谱模拟程序测定Y型分子筛的骨架硅铝比
5) Ratio of silicon and aluminum
硅铝比
1.
Adsorption capacity for H 2O?H 2S and NH 3 of zeolite modified by decreasing ratio of silicon and aluminum was 16.
对沸石进行降低硅铝比改性 ,改性沸石对H2 O、H2 S、NH3 的饱和吸附量分别为 16 。
6) ratio of silicate to aluminium
硅铝比
1.
Study on determining composition,crystallinity,cell parameter and ratio of silicate to aluminium of Zeolite NaY treated from kaolinite by X-ray diffractometer;
X射线衍射法测定高岭石合成的NaY分子筛物相组成、结晶度、晶胞参数及硅铝比研究
补充资料：铝-硅系铸造铝合金
分子式：
CAS号：
性质：以硅为主要合金元素的铸造铝合金。硅的添加量范围为5％～25％，并添加镁、铜等元素，形成亚共晶型、共晶型或过共晶型合金。含硅量为5％～13％的亚共晶型或共晶型合金是工业生产中应用最广泛的铸造铝合金。良好的铸造工艺性能和气密性是它们的主要特点。含硅量在13％以上的过共晶型合金具有热膨胀系数小、耐磨性好等特点。
CAS号：
性质：以硅为主要合金元素的铸造铝合金。硅的添加量范围为5％～25％，并添加镁、铜等元素，形成亚共晶型、共晶型或过共晶型合金。含硅量为5％～13％的亚共晶型或共晶型合金是工业生产中应用最广泛的铸造铝合金。良好的铸造工艺性能和气密性是它们的主要特点。含硅量在13％以上的过共晶型合金具有热膨胀系数小、耐磨性好等特点。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条