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1)  micro-sized zeolite
微米沸石
2)  submicron 4A zeolite
亚微米级4A沸石
1.
By adding a small amount of NaCl to increase alkalinity and changing temperatures in hydrothermal system,submicron 4A zeolite was synthesized.
实验结果表明,在4A沸石合成体系中加入适量NaC l的同时,通过增加碱度、改变晶化温度,可以合成出亚微米级4A沸石。
3)  submicron 4A-zeolite
亚微米4A沸石
1.
The synthesis of submicron 4A-zeolite as detergent assistant from water glass and bauxite in hydrothermal system with crystallization director were introduced, and the effects of various factors were investigated.
介绍了以水玻璃、铝矾土和晶化导向剂为原料合成洗涤助剂用亚微米4A沸石的工艺过程,考察了各因素对合成的影响,并对亚微米4A沸石的结构和性能进行了研究。
4)  nanosized zeolite
纳米沸石
1.
Confined space synthesis of discrete nanosized zeolite;
分立纳米沸石的限定空间合成
2.
The influence factors of synthesizing nanosized zeolite are reviewed.
对影响纳米沸石合成的因素进行了综述。
5)  nano-zeolite
纳米沸石
1.
After ultrafined, nano-zeolite has a series of specially excellent property because of the exterior surface enlarged, the superficial energy heightened, the hole path shortened, the hole mouth exposed outside increased and the number of the acid spots increased on the exterior surface, and it will broadly be used in industry.
纳米沸石作为沸石的主要发展趋势之一,近年来得到了长足发展。
6)  ultramicro zeolite
超微沸石
补充资料:4A沸石
分子式:
CAS号:

性质:又称Na12[(A1O2)12、(SiO2)12]27H2O  又称4A分子筛。白色固体颗粒。呈网络状结构,内含均匀小孔,孔径0.42nm,比表面积约为600m2/R,不溶于水和有机溶剂,能溶解于强碱和强酸。加热超过800℃时,重新结晶形成白硅石状的结构。有吸附水分,液体、气体及不饱和的有机物质。对钙离子有交换能力,理论交换能力为352CaCO3mg/g,一般为290~320mgCaCO3/g,白度≥95%,pH值10~11.5,表观密度0.3~0.5g/cm3,平均粒径为2μm,粒度分布≤4μm占85%以上。用作无磷洗涤剂的助剂,代替三聚磷酸钠;在石油和其他工业用作气体和液体的干燥、脱水净化等,也用作催化剂和软水剂。

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