查询词典 chemical adsorption

In the production of biodiesel from cottonseed oil by chemical method, the refining process was improved by substituting adsorption treatment for washing and drying.

以棉籽油为原料，探讨了化学法制取生物柴油过程中以吸附剂处理替代水洗干燥的精制工艺。

Keywords soil;copper;forest type;heavy metal;physical and chemical property;adsorption;affecting factor

土壤；铜；林分类型；重金属；理化性质；吸附作用；影响因素

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

Recent researches show that conventional water treatment processes can not remove nonylphenol efficiently, while physical processes such as activated carbons or organic-montmorillonite adsorption and chemical processes such as sonolytic degradation, electrochemical oxidation or photodecomposition show effective decomposition on nonylphenol in water.

研究表明自来水厂的常规处理工艺对于壬基酚的去除有限；而活性炭、有机蒙脱土吸附等物理方法，超声声化、电化学氧化、光分解等化学方法可有效降解水中的壬基酚。

This paper studied primely adsorption course and mechanism of Liuwomijuzhi on five soils whose physical and chemical characteristics are different.

本论文初步研究了硫肟醚菊酯在5种来源不同理化性质各异的土壤中的吸附过程及在粘土矿物和腐殖酸上的作用机理。

National pressure swing adsorption separation technology engineering research center for the promotion,""national carbon 1 Chemical Engineering Technology Research Center of the support unit.

是"国家变压吸附分离技术工程研究推广中心"、"国家碳一化学工程技术研究中心"的依托单位。

The adsorption processes are exothermic reaction and belong to the chemical adsorptions.The Langmuir iso therm is followed.

两种化合物在Cu表面上的吸附过程为放热过程，其在Cu表面上的吸附行为服从Langmuir吸附等温式，属化学吸附。

The chemical process for enhancement of metal adsorption in adsorbent ordered decreasingly as thiocarbamide plus phosphorylation (1), phosphorylation (1), thiocarbamide modification, phosphorylation (2), sodium thiosulfate modification, formaldehyde (1), formaldehyde (2), acetic acid modification, and citric acid modification.

其中硫脲加磷酸化修饰处理法修饰吸附剂具有对Zn2+、Ni2+及Cu2+最佳吸附量为256.28、241.56、229.96mg/g，效果最差之柠檬酸修饰处理法亦有40.32 mg、37.9 mg、34.64 mg/g。

The thermal decomposition of electroformed PbO2 showed two types of hydration water: the first type was physical adsorption water adsorbed on the surface of PbO2 particles and could be removed at low temperature, the second was chemical structural water localized within the PbO2 crystal structure and could only be ...

电化学形成的PbO2的热分解表明PbO2中存在两种类型的结构水：一种是吸附在PbO2颗粒表面的物理吸附水，可在较低温度下消失；另一种是位于PbO2晶格内部的化学结构水，只能在较高温度下失去。

Aim To further study the chemical constituents from the marcroporous adsorption resin 50% EtOH eluent of Drynaria fortunei.

摘要摘 要：目的研究骨碎补大孔吸附树脂柱色谱以体积分数50%乙醇洗脱部分的化学成分。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。