石
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Based on the above experiments, the author studied the mixed metallic pillared and modified montmorillonites. The experimental result indicated that the microporous structure of Fe-Al-PLMs was affected by the changing of interlayer Fe-Al polymer with different Fe/Al ratio. But the presence of Al iron was helpful to incorporate Fe iron into interlayer of montmorillonites.. Introducing Zr helped Al-PLMs getting better larger spacing, thermal stability, surface area and pore volumes. Its successful to apply Zr-Al-PLMs to treat wastewater containing Cr iron. The experiment of modifying Al-PLMs by PVA showed that the order of adding starting materials (Al-pillaring solution, PVA, montmorillonite solution) was related to the property of Al-PLMs. The PVA as precursor was beneficial for Al to go into interlayer of the clay and to form larger basal spacing porous clay. The surface area and pore volumes of Al-PLMs increased mainly because of increasing the external surface area and mesoporous volumes after acid-activating. This conclusion confirmed that the microporous structure of pillaring clay depends upon the interlayer pillar.
实验结果表明:在Al-PLMs中引入Fe离子,不同Fe/Al比制得的Fe-Al-PLMs因层间的Fe-Al聚合离子结构不同而影响其微孔结构,但羟基Al离子的存在有利于Fe离子进入蒙脱石层间;在Al-PLMs中引入Zr离子,有助于其层间距、比表面积、孔体积增大,所得Zr-Al-PLMs应用于含Cr废水处理效果显著;PVA改性后的Al-PLMs其物化性质变化与铝柱化剂、PVA溶液、蒙脱石溶液三者不同添加顺序有关,说明PVA的前撑有利于Al进入蒙脱石层间得到较大层间距的Al-PLMs;经酸化处理得Al-acid-PLMs,其比表面积增大以外表面积为主,孔体积增大以中孔为主,这也证实了柱撑蒙脱石的微孔结构取决于其层间的柱化物。
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Calcium montmorillonite was prepared by purifying LeXi bentonite with wet method two times. After purification, sodium modification of Ca-M was studied. A series of Fe/Cr-pillared montmorillonites were prepared with conventional method using sodium montmorillonite as experimental materials, and synthesis condition of Fe/Cr-PILM was studied and optimized. In order to shorten the preparation cycle of PILM by overleaping the step of sodium modification of Ca-M, the pretreatment technique for Ca-M has been pointed out for the first time. A series of PILMs were prepared with hydrothermal method using pretreated Ca-M as starting materials, which show that pretreatment of Ca-M is feasible.
然后,本文以莱西膨润土为原料,用二次湿法提纯了-2μm的钙基蒙脱石,对其进行了钠化改型研究;以改型后的钠基蒙脱石为原料,新型的铁、铬复合离子为柱化剂,研究并优化了常规离子交换法制备PILM的工艺;为了简化PILM的制备工艺,我们首次提出了蒙脱石的预处理工艺,希望通过预处理后可以省去蒙脱石的钠化工艺,以Ca-M为原料直接合成PILM。
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The artificial cultivated one and "Tiepi Fengdou" are similar in the content of ten trace elements, while the content of nine trace elements in protocorm culture was higher than others, and the trace elements in "Tiepi Shihu Capsule" were relatively low.
微量元素含量的比较表明,人工栽培铁皮石斛中10种微量元素含量与铁皮枫斗大致相近,铁皮石斛组织培养物中除Cu之外的其他9种微量元素高于其他石斛材料,而铁皮石斛胶囊中微量元素含量相对较低。
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The present invention is organic smectite gel and its preparation process.
一种蒙皂石有机凝胶及其制备方法,以蒙皂石类矿物如镁锂皂石为原料,在制取蒙皂石无机凝胶之后,特别经过下列步骤进行处理:1。
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Clay fraction is dominated by illite and kaolinite with small proportions of smectite, chlorite and vermiculite.
粘粒组成主要为伊利石和高岭石,也有少量蒙皂石、绿泥石和蛭石。
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The zircon SHRIMP U-Pb chronological results show the ages of 584±7 Ma for the Lunckeryggen granite,619±7 Ma for the Defuk granite,534±13 Ma for the Mefjell syenitic rocks in the Sr Rondane Mountains,East Antarctica,representing the formation ages of the different Pan-African grantoid bodies.
本文通过对东南极索龙达讷山泛非期花岗质岩石采用高精度锆石U-Pb SHRIMP定年,获得Lunckeryggen花岗岩中锆石的年龄为584±7 Ma、Defuk花岗岩中锆石的年龄为619±7 Ma、Mefjell正长岩中锆石的年龄为534±13 Ma。
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The structure layer turns from TOa type to TOaT type (balanced by interlamellar cations), then to TOaT type for kaolinite, illite and pyrophyllite, respectively; alumina to silica mass ratio turns from 0.86 to 0.42; the surface zeta potentials turn small, but they show little relation with their surface charge density.
通过红外光谱分析可知,十二胺和油酸钠在一水硬铝石、高岭石、伊利石和叶蜡石表面的吸附主要以静电力作用的物理吸附为主,与矿物的表面电性有关。
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Project its image hasCourt in Handan, Hebei stone arches, Zhucheng Horse Mountain stone arch ears, marine hills Wanfu stone arches, Jiangsu Xinji Wayao school even four wheel kiosks, Dongying large stone arch, Ruiyang Pharmaceutical Co., Ltd. and other large-scale trade mark and so on.
其形象工程有河北邯郸赵王阁石牌坊、诸城马耳山风景区石牌坊、海洋万福陵石牌坊、江苏新集瓦窑中学连軲四角亭、东营大型石牌坊、瑞阳制药有限公司大型商标等等。
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Thirty-two patients (M 14, F 18 , age 32 a ±s 8 a) in smectite group were sprayed 0.1-0.2 g of smectite on the ulcer surface, qid for 4 d; 34 patients (M 16, F 18, age 32 a±9 a) in chlorhe x idine group gargled with 2% of chlorhexidine solution, qid for 4 d; 36 patients (M 16, F 20, age 32 a±11 a ) in chlorhexidine plus smectite group gargled firs t with 2% of chlorhexidine solution, and then were sprayed 0.1-0.2 g of smectite.
蒙脱石组32例(男性14例,女性18例,年龄32 a±s 10 a),喷蒙脱石0.1~0.2 g于溃疡处,每日4次;氯己定组34例(男性16例,女性18例,年龄32 a±9 a),用2%氯己定液漱口,每日4次;蒙脱石加氯己定组36例(男性16例,女性20例,年龄32 a±11 a),先用2%氯己定液漱口,然后再喷蒙脱石0.1~0.2 g,每日4 次。3组疗程均为4 d。
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Mondell engineering stone is high-technical decorating surface which is isomerized and polymerized from picked natural rimed stone ( the conpozation of Sio2 is over 99.99 percent). The stone is glittering, hard. It is not easy to fade or change the shape. It is not radiant and acid-fast. It is antibacterial and clean. It has good physical and chemic performance. This series is wildly used for its beautiful decoration in walls, floor, platform and so on. It combines features of natural stone and PMMA solid surface to get the rich and glittery colour.
蒙代尔工程石是采用精选的天然石结晶矿产为原料(石英砂Sio2的含量达到99.99%以上),在全自动生产线的高温高压状态下异构聚合而成的高科技装饰面材,具有晶莹剔透、硬度高、不变形、不退色、无辐射性、耐酸碱、易清洁、抗菌、卫生等优异的物理性能及化学性能,应用空间相当广泛,可应用于地面、外墙、台面等装饰自然美:真正的石材质感、兼顾天然石和亚克力人造石二者之优点,色彩丰富、晶莹剔透。
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。